TM 1-4920-446-13&P

TECHNICAL MANUAL

OPERATOR'S,

AVIATION UNIT

AND INTERMEDIATE

MAINTENANCE MANUAL

(INCLUDING REPAIR PARTS AND

SPECIAL TOOLS LIST)

FOR

HYDRAULIC SYSTEM

TEST STAND,

TYPE D-6A

P/N 7459

NSN 4920-00-914-7054

"Approved for public release; distribution is unlimited."

Headquarters, Department of the Arm y

25 June 199 0
TM 1-4920-446-13 & P

WARNING SUMMARY

Personnel performing operations, procedures, and practices which are included or implied in this technical manual shall observe the following instructions. Disregard of

these warnings may result in serious or fatal injury to personnel.

GENERAL MAINTENANCE

Be sure that all electrical power is removed from the unit before beginning any maintenance operation. To avoid personal injury, test stand must be shut down and all hydraulic pressure relieved before beginning any maintenance operation.

TOWING

Maximum safe towing speed on an improved surface is 20 mph. Maximum speed over

a rough surface is 10 mph.

Release brake before towing.

GROUNDING

Be sure all ground circuits within the unit are intact and that equipment is properly

grounded before energizing.

PARKING

Set parking brake on test stand and towing vehicle when parked.

WHEEL REMOVAL

While working on any of the test stand wheels, the trailer weight must be adequately

supported with a jackstand. The brake must be set, and the wheels at the end of the

trailer opposite that being serviced must be properly chocked. Make certain that all

pressure is removed from tire and tube prior to removing wheel assembly to avoid personal injury.

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TM 1-4920-446-13 & P

CHECKING HOSES & FITTINGS

Extremely high hydraulic fluid pressures are developed during test stand operation. The

connecting hoses must be free of defects and connecting fittings clean to avoid hose

rupture or leaks.

SERVICING FILTERS & VALVES

Test stand must be shut down and all pressure relieved before servicing filters or valves

to avoid personal injury.

USE OF CLEANING SOLVENTS

Those areas of skin and clothing that come in contact with cleaning solvents should be

thoroughly washed immediately.

Saturated clothing should be removed immediately.

Area in which cleaning solvents are used should be adequately ventilated to keep vapors

to a minimum.

If cleaning solvents contact the eyes, nose, or ears, flush them with generous quantities

of water. Seek medical attention immediately.

USE OF LUBRICATING OIL

Produces paralysis if swallowed.

May burn if exposed to heat or flames.

Areas of skin and clothing that come in contact with lubricating oil should be thoroughly

washed immediately.

Saturated clothing should be removed immediately.

Areas in which lubricating oil is used should be adequately ventilated to keep mist and

fumes to a minimum.

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TM 1-4920-446-13 & P

TECHNICAL MANUAL HEADQUARTERS

DEPARTMENT OF THE ARMY

TM 1-4920-446-13 & P WASHINGTON, D.C., 25 June 1990

OPERATOR'S, AVIATION UNIT AND INTERMEDIATE

MAINTENANCE MANUAL

INCLUDING

REPAIR PARTS AND SPECIAL TOOLS LIST

FOR HYDRAULIC SYSTEM TEST STAND,

ELECTRIC MOTOR DRIVEN, TYPE D-6A

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please

let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form

2028-2 located in the back of this manual direct to: Commander, US Army Aviation Systems Command, ATIN: AMSAV-MC, 4300 Goodfellow Blvd., St. Louis, MO 63120-1798. A reply will be furnished directly to you.

Title Page

CHAPTER 1 INTRODUCTION .................................................................................................... 1-1

SECTION I General Information.......................................................................................... 1-1

SECTION II Equipment Description and Data ..................................................................... 1-2

SECTION III Principles of Operation ..................................................................................... 1-11

CHAPTER 2 OPERATING INSTRUCTIONS.............................................................................. 2-1

SECTION I Description and Use of Controls and Instruments.............................................. 2-1

SECTION II Operating Procedures ...................................................................................... 2-1

SECTION III Aircraft Fill and Test Procedures....................................................................... 2-8

CHAPTER 3 MAINTENANCE INSTRUCTIONS, AVUM, AVIM.................................................... 3-1

SECTION I Repair Parts, Special Tools, and Test Equipment ............................................. 3-1

SECTION II Service Upon Receipt....................................................................................... 3-1

SECTION III Preventive Maintenance Checks and Services (PMCS).................................... 3-3

SECTION IV Troubleshooting................................................................................................ 3-10

SECTION V Maintenance Procedures .................................................................................. 3-12

LIST OF APPENDICES

Appendix Title Page

APPENDIX A REFERENCES.................................................................................................... A-1

APPENDIX B MAINTENANCE ALLOCATION CHART ............................................................ B-1

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LIST OF APPENDICES (Contd)

Appendix Title Page

APPENDIX C REPAIR PARTS AND SPECIAL TOOLS LIST.............................................. C-1

Functional Group Numbers

00 - Test Stand, Hydraulic System, Electric Motor

Driven, Type D-6A

01 - Cabinet Assembly

02 - Chassis

02 - Electrical System

03 - Hydraulic System

05 - Instrument Panel

06 - Frame

APPENDIX D EXPENDABLE SUPPLIES AND MATERIALS LIST ....................................... D-1

SUBJECT INDEX .................................................................................... Index 1

LIST OF ILLUSTRATIONS

Figure No. Title Page

1-1 Hydraulic System Test Stand, Electric Motor Driven,

Type D-6A ....................................................................................................................... 1-3

1-2 Test Stand Hydraulic System Electric Motor, Major Internal Components ......................... 1-4

1-3 Electrical Schematic Diagram........................................................................................... 1-7

1-4 Hydraulic System Diagram ............................................................................................... 1-9

1-5 Connection Diagrams for 220V and 440V Operation ........................................................ 1-10

2-1 Electrical Control Box ...................................................................................................... 2-2

3-1 Lubrication Diagram ......................................................................................................... 3-4

C-1 Cabinet Assembly ............................................................................................................ C-9

C-2 Internal Component Assembly .......................................................................................... C-11

C-3 Running Gear Assembly .................................................................................................. C-17

C-4 Electrical Components Box............................................................................................... C-20

C-5 Cable Assy, Electrical ...................................................................................................... C-23

C-6 Hose Assemblies (Test Stand to Aircraft).......................................................................... C-25

C-7 Hydraulic Piping Installation.............................................................................................. C-27

C-8 Hydraulic Fluid Reservoir.................................................................................................. C-32

C-9 Manifold .......................................................................................................................... C-34

C-10 Instrument Panel Assembly ........................................................................................... C-36

LIST OF TABLES

Table No . Title Page

1-1 Equipment Data ............................................................................................................... 1-5

2-1 Controls and Instruments .................................................................................................. 2-3

2-2 Control Settings ............................................................................................................... 2-7

3-1 Daily Inspection Requirements ......................................................................................... 3-5

3-2 Intermediate Inspection Requirements ............................................................................. 3-6

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LIST OF TABLES (Contd)

Table No. Title Page

3-3 Periodic Inspection Requirements..................................................................................... 3-8

3-4 Daily Servicing ................................................................................................................ 3-9

3-5 Lubricants ........................................................................................................................ 3-9

3-6 Troubleshooting Chart ...................................................................................................... 3-10

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TM 1-4920-446-13 & P

CHAPTER 1

INTRODUCTION

SECTION I. GENERAL INFORMATION

1-1. Scope.

Type of Manual: Operator's, Aviation Unit Maintenance and Intermediate Maintenance including Repair Parts

and Special Tools List.

Part Number and Equipment Name: Part Number: 7459; Hydraulic System Test Stand, Electric Motor Driven,

Type D-6A.

Purpose of Equipment: To facilitate ground check and maintenance of aircraft hydraulic systems by performing the

following test and service operations.

a. Test the aircraft system for internal and external leakage.

b. Test the function and operation of aircraft hydraulic systems and their components.

c. Drain, flush, and refill the aircraft hydraulic systems with micronically filtered hydraulic fluid.

1-2. Maintenance Forms, Records, and Reports. Department of the Army forms and procedures used for equipment

maintenance will be those prescribed by DA PAM 738-751, the Functional Users Manual for The Army Maintenance

Management System-Aviation (TAMMS-A).

1-3. Destruction of Army Material to Prevent Enemy Use. Refer to TM 750-244-1-4, Procedure for Destruction of

Aviation Support Equipment (FSC 4920) for instructions on destroying this test stand.

1-4. Preparation for Storage and Shipment. Refer to TM 55-1500-204-25/1, Administrative Storage of Equipment

and TM 743-200-1, Storage and Material Handling.

1-5. Quality Assurance, Quality Control. For quality assurance, quality control requirements refer to FM 55-411.

1-6. Reporting Equipment Improvement Recommendation (EIR). If your Hydraulic Test Stand needs improvement

let us know. Send us an EIR. You, the user, are the only one who can tell us what you don't like about your equipment.

Tell us why you don't like the design or why a procedure is hard to perform. Put it on an SF 368 (Quality Deficiency Report). Mail it to us at: Commander, U.S. Army Aviation Systems Command, Attn: AMSAV-MMD, 4300 Goodfellow

Blvd., St. Louis, MO 63120-1798. We'll send you a reply.

1-7. Administrative Publication Storage. Administrative storage of this publication shall be in accordance with TM

55-1500-204-25/1.

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SECTION II. EQUIPMENT -DESCRIPTION AND DATA

1-8. Physical Description.

a. The test stand (Figure 1-1) incorporates one hydraulic piping system and a high pressure pump. The pump is

driven by a 20 horsepower, 220/440 volt, 60 hertz, 3-phase motor.

NOTE

Left and right sides are determined standing at the towbar and facing the test stand.

b. Operator's controls and instruments are located at the right rear side of the test stand. The electrical components

box is located at the right front side of the unit. External hose connections are located on the rear frame. Two U-shaped

hangers are located on the cabinet front panel to stow the hydraulic hoses.

1-9. TEST STAND CAPABILITIES.

a. The stand is capable of supplying 0 to 10 gpm (gallons per minute) of hydraulic fluid at 3000 psi (pounds per

square inch), or 0 to 5 gpm at 5000 psi.

b. The test stand is mounted on a four wheel trailer and is completely mobile. It may be towed at speeds up to 20

mph over improved roads or surfaces; 10 MPH over rough terrain. The unit is air transportable. It has been designed

to withstand the gravitational forces which might be encountered in normal flight. The stand weight is 3060 pounds (wet).

To familiarize using personnel with the equipment characteristics and physical makeup, a table of equipment data is presented in Table 1-1 and some of the major components are identified in Figure 1-2.

1-10. Descriptive Details. The stand operating components, including the control panel, are enclosed in a steel,

weather resistant cabinet. The cabinet is mounted on the four wheel trailer. A hand operated mechanical parking brake

on the rear wheels holds the test standstationary while in operation or when parked. The major components and systems of the test stand are: trailer and running gear, cabinet, electric motor, high pressure hydraulic pump, hydraulic reservoir, hydraulic filters, instruments and controls, and the electrical system.

1-11. Trailer and Running Gear Assembly. The trailer frame is welded steel construction. The trailer rolls easily on four

steel wheels equipped with 6.00/6.90-9,6 ply tires. Transverse leaf springs and radius rods attached to the front and rear

axles cushion the stand against road shock and rough terrain, protecting the components of the test stand. A hinged

towbar permits ease of positioning of the test stand and towing. The towbar can be latched in the upright position. Front

wheel steering is the conventional type with steering knuckles, tie rods, and king pins. A hand lever (Figure 1-1) sets the

rear wheel brakes, holding the test stand stationary when not being moved. Tiedown rings (Figure 1-1) at each corner of

the trailer frame permit tiedown of the test stand for storage or shipment.

1-12. Housing. Two hinged doors on each side and one on the rear of the cabinet permit access to all internal components. A two hinged cover protects the controls when the test stand is not in use. By releasing two catches on each side,

front and rear, the entire housing can be lifted off the chassis. A hinged access panel on top affords access to the hydraulic reservoir fill cap.

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Figure 1-1. Test Stand Hydraulic System Electric Motor Drive, Type-D-6A

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Figure 1-2. Test Stand Hydraulic System Electric Motor Drive, Type D-6A Major Internal Components

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Table 1-1. Equipment Data

Length

Width

Height

Cube

Weight

Housing

Mobility

Operating Temperature

(Ambient)

Storage Temperature

Output Capability

Reservoir Capacity

Hydraulic Fluid

Protective Devices

77-1/2 inches (w/towbar vertical)

126-7/8 inches (w/towbar horizontal)

56 inches

54 inches

135.6 cubic feet (w/towbar removed)

3060 pounds (wet)

Metal, weather resistant, withstands 200 PSI static load

Towing - Up to 20 MPH on improved surface 10 mph on rough surface.

Airlift - Withstands shocks loads of up to 8G fore and aft, 3G sideward.

Tiedown rings provided at each corner (10,000 pound tensile strength).

Tires - 6.00/6.90-9, 60 psi

-40° F (-40° C) to + 125° F (49° C), up to 99% humidity

-55° F (-48° C) to + 160° F (71° C)

0-10 gpm at 3000 psi

0-5 gpm at 5000 psi

22 gallons (20 gallons usable)

MIL-H-83282

Over temperature switch

High pressure differential switches

Circuit breaker

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1-13. Electric Motor. Power is supplied by a 20 horsepower, 220/440 volt, 3-phase, 60 hertz, electric motor (Figure 1-2

and Figure 1-5).

1-14. Hydraulic Hoses. Three hydraulic hoses are provided with the test stand. The 1/2 and 3/4 inch diameter hoses

connect the high pressure system to the aircraft hydraulic system. The 1 inch diameter hose is the suction return line

from the aircraft. Each hose has a quick disconnect fitting protected by a dust cap on each end. Each hose connects to

the applicable quick disconnect fitting mounted on the rear of the frame. When not in use, the hoses can be stored on

hooks on the front of the cabinet.

1-15. Electrical Cable Assembly. The external cable is approximately 56 feet long. It has a female plug on one end to

plug into a hangar or flight line electrical receptacle. The 6 wires at the other end attach to the test stand electrical system.

1-16. Hydraulic Pump . The hydraulic pump is a high pressure, variable stroke, variable pressure, axial piston type.

It includes a pressure compensator and handwheel stroke control. The rotation is clockwise (facing the input shaft),

1800 rpm, and output of 10 gpm at 3, 000 psi, and 5 gpm at 5, 000 psi. It incorporates a 1/4 inch needle valve for pressure compensator shutoff. Pressure and volume adjustments may be fixed at any point within the range of 800 to 5, 000

psi and 0 to 10 gpm. The pump mounting bracket attaches the pump to the electric motor. A removable panel on the

bracket allows access to the flexible coupling attached to the motor output and pump input shafts.

1-17. Hydraulic Reservoir.

a. The hydraulic reservoir stores hydraulic fluid (MIL-H-83282) and supplies it for test stand functions. The reservoir holds 22 gallons of hydraulic fluid, 20 of which are usable. A 3 gallon space above the normal full level allows for

expansion. A bolted access plate on top allows reservoir clean out and incorporates the fill tube with removable cap. An

electrical float type fluid level assembly is installed in the reservoir. It's connected to a fluid level gauge on the instrument panel.

b. The reservoir can be removed by lifting off the cabinet, draining the tank, disconnecting plumbing and wiring, and

removing 4 bolts.

1-18. High Pressure Filter. A filter (Figure 1-2) is located in the high pressure output line. A micronic filter element

within the filter gives the pressurized fluid a final cleaning before outlet to the aircraft. A warning light on the operator's

control panel indicates high differential pressure between the filter inlet and outlet. Should a filter element become

clogged, the warning light will come on.

1-19. Low Pressure Filter. A low pressure filter (Figure 1-2) is incorporated in the outlet line from the system boost

pump. The filter cleans hydraulic fluid before it enters the high pressure pump section. The filter housing' incorporates a

drain plug, a filling port, and an air bleed valve which can be opened (using a screwdriver) to release entrapped air.

1-20. Protective Devices and Instrumentation (Figures 1-3 and 1-4).

a. A thermal relief valve limits pressure in the low pressure section caused by thermal expansion of fluid.

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Figure 1-3. Electrical Wiring Schematic, D-6A (Sheet 1 of 2)

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Figure 1-3. Electrical Wiring Schematic, D-6A (Sheet 2 of 2)

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Figure 1-4. Hydraulic Schematic Diagram, D-6A

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Figure 1-5. Connection Diagram for 220v or 440v, D-6A

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b. A thermoswitch in the high pressure pump shuts down the unit when fluid temperature exceeds 160°F.

c. Low pressure switches protect the high pressure pumps against cavitation due to low inlet pressure or boost

pump failure. If the pressure drops below 40+5 psig, the unit is automatically shutdown.

d. Check valves prevent reverse flow of hydraulic fluid.

e. Differential pressure switches across filter ports of the high and low pressure filters illuminate warning lights on

the control panel to indicate a clogged filter.

f. A circuit breaker is provided for overload protection of various circuits. Refer to Figure C-4 for location of electrical components and Figure 1-3 for wiring schematic.

g. Complete instrumentation and controls are located on the control panels. Refer to Chapter 2, Figure 2-2 and Table 2-1 for description of function and location.

1-21. Electrical System (Figure 1-3). The system provides the circuits and control for proper functioning of electrical

components. Electrical power is supplied by an external source through the external electrical cable.

1-22. Equipment Data. The equipment data in Table 1-1 summarizes the specific capabilities and limitations on

the equipment.

SECTION III. PRINCIPLES OF OPERATION

1-23. Simplified Principles of Operation. (Figure 1-4.) The boost pump receives fluid from the aircraft through the

suction return port and flowmeter. The output of the boost pump is passed through the low pressure filter to the suction

side of the high pressure pump. The boost pump pressure is controlled by the low pressure relief valve. The output of

the high pressure pump is passed through the high pressure check valve, high pressure filter, flow control valve, and

pressure outlet to the aircraft. The output pressure is controlled by the high pressure relief valve and a compensator

control on the high pressure pump. The output is controlled by the flow control valve, and regulated by a volume control on the high pressure pump.

NOTE

Before operation ensure test stand is wired for 220 volt operation.

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CHAPTER 2

OPERATING INSTRUCTIONS

SECTION I. DESCRIPTION AND USE OF CONTROLS AND INSTRUMENTS

2-1. Controls and Instruments. Controls and instruments for operation and monitoring of the test stand are located at

the right rear side. All controls are identified in Table 2-1 and located on Figure 2-2. Control settings are explained in

Table 2-2.

SECTION II. OPERATING PROCEDURES

NOTE

Before operation ensure test stand is wired for 220 volt operation.

2-2. Test Stand Operation. Personnel operating the test stand must be familiar with the location and function of all

controls and indicators. They must also have a thorough knowledge of the principles of operation involved.

Extremely high hydraulic fluid pressures are developed during test stand operation. The

connecting hoses must be free of defects and the connecting fittings clean to avoid hose

rupture or leaks.

2-3. Preliminary Checks. Prior to operation, the following steps should be taken to ensure the stand will operate properly

and safely.

a. Open all doors prior to beginning checks.

Use volatile solvents only in a well ventilated area. Avoid prolonged contact with the skin.

b. Inspect the connecting hoses and clean the fittings using dry cleaning solvent, P-D-680, if necessary.

Be sure all ground circuits within the unit are intact and that equipment is properly grounded before energizing.

c. Set circuit breaker CB1 (Figure 2-1) to ON position to check fluid level.

d. Observe the fluid level gauge and add fluid, MIL-H-83282, until gauge indicates 3⁄4 FULL.

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Figure 2-1. Electrical Component Box

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Table 2-1. Controls and Instruments

Nomenclature Item No. (fig. 2-2) Function or Use

Hour Meter

Fluid Pressure Gauge

Boost Pressure Gauge

Fluid Temp. Gauge

Reservoir Fluid Level Indicator

Indicator

Compensator Shutoff Valve

High Pressure Bypass Valve

Selector Valve

Reservoir Shut-off Valve

High Pressure Relief Valve

Flow Limit Adjust

Flow Control Valve, 3/4 Inch Outlet

Flow Control Valve, 1/2 Inch Outlet

1

2

3

4

5

6

7

8

9

10

11

12

13

Records elapsed operating time of test stand.

Indicates main pump output fluid pressure.

Indicates boost pump fluid pressure.

Indicates temperature of hydraulic fluid entering main

pump. Gauge redlined at 160°F.

Indicates hydraulic fluid level in reservoir.

Controls pressure of main pump fluid output.

When opened, causes high pressure relief valve to

dump flow to return line at no pressure.

4 position, 3-way selector valve with lever handle.

(Suction pressure boost pump, filter out, filter in.)

Shutoff fluid flow from reservoir.

Adjustable pressure regulating valve which controls

outlet pressure to safe limits.

Adjusts flow volume at main pump outlet port.

Controls flow of fluid through outlet hose.

Controls flow of fluid through outlet hose

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Table 2-1. Controls and Instruments (Contd)

Nomenclature Item No. (fig. 2-2) Function or Use

Outlet Selector Valve

Pressure Compensator Valve

Fluid Pressure Gauge Shutoff Valve

Flow Indicator GPM

LP Δ P

(press-to-test)

HP Δ P

(press-to-test)

HP Gauge Calibration port

Low Pressure Calibration Port

Hydraulic Flow Diagram

Capacity Nameplate

Warning Nameplate

Start Pushbutton

Stop Pushbutton

Motor Light

14

15

16

17

18

19

20

21

22

23

24

25

26

27

Directs high pressure fluid flow to 1/2 inch or 3/4 inch

outlet, or to stand reservoir.

Sets fluid pressure as indicated on high pressure

gauge.

Used to isolate high pressure gauge from system.

Indicates hydraulic fluid flow in gallons per minute.

Lights when high differential pressure exists across

low pressure filter.

Lights when high differential pressure exists across

high pressure filter.

Allows for calibration of high pressure gauge. Make

sure cap on this port is securely fastened during operation of test stand.

Allows for calibration of low pressure gauge. Make

sure cap on this port is securely fastened during operation of the test stand.

Self explanatory.

Provides maximum flow rates at various pressures.

Provides warnings to heed with test stand in operation.

Push in to start electric motor.

Push in to stop electric motor.

Lit when motor is running.

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Never operate the test stand if the hydraulic fluid reservoir is less than half full. System damage could result. Replenish

as required.

e. Inspect piping and fittings for obvious leaks.

f. Close and secure all doors except those giving access to the control panel and electrical components panel.

2-4. Pre-operation Control Settings. Set the operating controls as listed in Table 2-2.

2-5. Pre-operation Fill and Bleed Procedure. With the controls set as specified in paragraph 2-4, proceed as follows:

a. Set circuit breaker (CB1) to ON position to set up hydraulic pump.

b. Turn outlet selector (14, Figure 2-2) to valve closed position.

c. Make certain flow control valves (12 and 13) are closed.

d. Activate bleed valve (on top of the low pressure filter) to bleed air from the system. Continue to actuate bleed

valve until system is purged of air (Paragraph 1-19).

e. Replenish the hydraulic reservoir to the proper level (3/4 full) with hydraulic fluid, MIL-H-83282. Observe fluid

level gauge.

2-6. The test stand is now full and air free.

2-7. Preliminary Adjustments and Control Settings. The test stand system is filled with hydraulic fluid at the completion

of the procedures in paragraph 2-5. It is now necessary to set the stand controls to accommodate the test to be run.

a. Set the reservoir shutoff valve to the closed position (9, Figure 2-2).

b. Depress start pushbutton (25).

c. Set the selector valve (8) to the LP filter in position.

d. Open flow control valve (12 or 13). Turn valve counterclockwise.

e. Slowly close HP bypass valve (7).

f. Adjust HP relief valve (10) to closed (fully clockwise) position.

g. Adjust compensator control (6) to achieve an output pressure of 3300 psi as indicated on the fluid pressure

gauge.

h. Reset HP relief valve (10) to obtain a reading of 3000 psi on the fluid pressure gauge (2).

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Figure 2-2. Instrument Panel Assy, D-6A

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Table 2-2. Control Settings

Control Position

Fluid Pressure Gauge

Shutoff (16)

Selector Valve (8)

Pressure Compensator

Valve (15)

Outlet Selector Valve ( 14)

HP Relief Valve (10)

Flow Limit Adjust (11)

HP Bypass Valve (7)

One quarter turn from fully open

LP filter in position

Adjusted to lowest pressure setting (rotated fully counterclockwise)

Closed

Completely counterclockwise

Set to zero flow (rotated fully clockwise)

Open (rotated fully counterclockwise)

i. Adjust flow limit adjust control (11) to obtain a flow of 10 gallons per minute (gpm) as indicated on flowmeter (17).

j. Observe fluid flow meter (17) . Erratic needle movement indicates air presence. If air is entrapped, intermittently activate the bleed valve control to remove air (paragraph 1-19).

k. Decrease the hydraulic fluid flow to a minimum using the flow limit adjust (11, Figure 2-2).

NOTE

HP relief valve (10) must always be set 200/250 psi higher than compensator control (6) to achieve proper flow conditions.

l. Adjust compensator shutoff valve (6) and HP relief valve (10) for correct pressure for the test to be run.

m. Shut down test stand and stop the HP pump in accordance with paragraph 2-8.

2-8. Shutting Down the Test Stand. After making the preliminary adjustments to ensure the test stand is functioning

properly or following a test or fill operation, the stand may be shut down by the following steps:

a. Open HP relief valve (10) by turning completely counterclockwise.

b. Open the HP bypass valve (7).

c. Depress stop button (26).

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d. Set circuit breaker CB1 to OFF position.

2-9 . Emergency Shutdown. If necessary to stop the test stand rapidly, depress stop pushbutton and open the HP bypass valve (7).

2-10. Fluid Sampling. A hydraulic fluid sample may be withdrawn from the suction pressure calibration port (21).

SECTION III. AIRCRAFT FILL AND TEST PROCEDURES

2-11. Positioning and Connecting the Test Stand to Aircraft.

a. Move the test stand to the operating site using a suitable towing vehicle.

b. Position the test stand so the hoses can be connected between the aircraft and test stand without sharp bends or

kinks.

c. Set the brakes by pushing down on the brake lever.

d. Raise the tow bar and secure it in the vertical position. Secure with the tow bar latch.

e. Remove the hoses from the hangers on which they are stored.

Use volatile solvents only in a well ventilated area. Avoid prolonged contact with the skin.

f. Check that the connector fittings on the hoses and the outlet and return fittings on the test stand are clean. If the

fittings are dirty, wash with solvent, P-D-680, Type II.

g. Connect hoses between the aircraft and the outlet and return fittings at the rear of the test stand. Accessory fittings and adapters for use in making aircraft connections are supplied with the test stand.

2-12. Replacing Lost Hydraulic Fluid in an Aircraft. Small quantities of fluid, such as that lost when making the hose

connections, may be replaced during normal operation of the test stand. To fill and bleed air from an aircraft system

which has been drained, refer to paragraph 2-13.

2-13. Bleeding an Aircraft Hydraulic System. If an aircraft system has been drained or the hydraulic fluid supply depleted, the following procedure will renew the system.

NOTE

Two persons are required; one to operate the test stand, the other to cycle the aircraft controls and monitor from the

aircraft.

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a. Ensure the test stand has been prepared for operation (paragraph 2-5) and is properly connected to the aircraft.

Set reservoir shutoff valve (9, Figure 2-2) to the closed position.

NOTE

For correct fill procedures, refer to the technical publication which applies to the aircraft being serviced.

b. Adjust the pump flow limit adjust control (11) for minimum flow and activate the test stand (25).

c. Open flow control valve (12 or 13).

d. Set selector valve (8) in the LP filter out position.

e. Slowly close the HP bypass valve (7).

f. Set the compensator control (6) and HP relief valve (10) for the pressure required for the particular aircraft.

g. Slowly increase the volume output of the test stand with the flow limit adjust control (11) in accordance with aircraft requirements.

Do not exceed the rated volume flow for the aircraft system pumps. Refer to the aircraft publication for pump capacities.

h. Aircraft controls must be continually cycled to ensure all air is bled from the system and to prevent heat build up.

i. Add hydraulic fluid to the test stand during filling to maintain the reservoir over one-half full.

j. When bleeding is complete, use standard operating procedures to shut down the test stand (paragraph 2-8).

2-14. Aircraft Testing Procedures.

a. Connect hoses to the aircraft.

b. Set reservoir shutoff valve to open.

c. Set flow control (12 or 13) to open.

d. Set HP bypass valve (7) to closed.

e. Operate the test stand in the manner described in paragraph 2-7.

f. Set the HP compensator control (6) to the desired pressure.

2-9
TM 1-4920-446-13 & P

NOTE

HP relief valve (10) must be set 200/250 psi higher than compensator control (6) to achieve desired pressure.

e. Open HP bypass valve (7).

f. Adjust the flow limit adjust control to the flow required by the aircraft being serviced. Observe the flowmeter.

g. Slowly close HP bypass valve (7).

2-15. Aircraft System Test. To test an aircraft system, proceed as follows:

a. Ensure the test stand has been prepared for operation (paragraph 2-7) and is properly connected to the aircraft.

b. Make certain that the aircraft system is filled, free of entrapped air and correctly pressurized.

NOTE

Refer to the technical publication which applies to aircraft being serviced for the proper test procedures.

c. Set the outlet selector valve to point towards the 1/2 inch or 3/4 inch flow control outlet valve (12 or 13). Fully

open the selected valve.

d. Set selector valve (8) to filter out position.

e. Activate the test stand (25).

f. Slowly close the HP bypass valve (7).

g. Proceed with the aircraft system test as directed in the technical publication applicable to the aircraft being

tested.

h. Observe fluid pressure gauge (2). Adjust the compensator control (6) to obtain the required pressure for the specific aircraft.

i. Observe the flow indicator (17). Adjust the flow limit adjust (11) to obtain the required hydraulic fluid flow for the

aircraft being tested.

j. Monitor the temperature of the hydraulic fluid at the LP filter outlet by observing the fluid temperature gauge (4).

k. Occasionally, or as necessary, check the return pressure from the aircraft. Switch the selector valve (8) to the

suction pressure, boost pump position and observe boost pressure gauge (3).

l. After completing the hydraulic test of the aircraft, shut down the test stand using standard operating procedures

(paragraph 2-8).

2-10
TM 1-4920-446-13 & P

m. With the test stand shut down, disconnect the test stand from the aircraft and store the hoses.

2-11/(2-12 blank)
TM 1-4920-446-13 & P

CHAPTER 3

MAINTENANCE INSTRUCTIONS, AVUM, AVIM

SECTION I. REPAIR PARTS, SPECIAL TOOLS, AND TEST EQUIPMENT

3-1. Common Tools and Equipment. For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE) applicable to your

unit.

3-2. Tools for AVUM and AVIM. See Appendix B, Section III.

3-3. Special Tools. No special tools are required.

3-4. Test Equipment. The following test equipment is required to check and adjust the instrumentation of the hydraulic

test stand: Calibrated 0-6000 psi master gauge, 0-300 psi master gauge, and calibrated flowmeter.

3-5. Repair Parts. Repair parts are listed and illustrated in Appendix C of this manual.

SECTION II. SERVICE UPON RECEIPT

3-6 . Unpacking and Installation. The test stand is shipped completely assembled on fully inflated tires and requires no

major assembly of components prior to preparing the stand for use. Open all cabinet doors and access panels. Thoroughly inspect interior of the test stand. Remove all extraneous packing or cushioning material used to protect internal

components during shipment. Small areas of normally exposed metal surfaces may be wrapped with protective paper

covering or tape during shipment. Be certain all such coverings are removed.

3-7. Initial Inspection. It is important to carefully inspect the complete test stand for any possible, damage which may

have occurred during shipment. The following initial inspection procedures are recommended.

a. Check the data appearing on the test stand nameplate to verify it is the type of unit designated in paragraph 1-1

of this manual. If there is any doubt, do not operate the test stand.

b. Remove the hose assemblies from the cabinet. Inspect the hose assemblies carefully for evidence of damage,

breaks, or loose fittings.

The output hose assemblies are subjected to extremely high pressures. Replace a defective hose assembly before

operating the test stand.

c. Open the control and instrument panel access door. Inspect all gauges, indicators and controls for evidence of

shipping damage. Check that all parts are securely mounted. Check that all manually operated switches and controls

operate freely.

3-1
TM 1-4920-446-13 & P

d. Open access doors: Inspect the plumbing installation for damaged tube assemblies or fittings. Check that all

fittings are securely connected.

e. Carefully inspect the electrical wiring for broken wires or frayed insulation. Check that all electrical connections

are secure. Be sure all ground circuits within the unit are intact and that equipment is properly grounded before energizing.

f. Inspect the motor installation for evidence of shipping damage. Check that the motor mounting bolts are securely

tightened.

g. Inspect oil reservoir for evidence of physical damage in shipment. Check that the gauge sensor is securely

mounted in the oil reservoir. Check that the electrical wiring to the sensing unit is not damaged. Check the fluid system

carefully for evidence of leakage.

h. Checktires for proper inflation pressure. Normal tire pressure is 60 psi with tires cold. Inspect tire treads and

casings for cuts or abrasions and remove any imbedded objects from treads.

i. Check the tow bar and steering assemblies. Make certain that tie rods have not been bent or damaged and that

the steering apparatus swings freely.

j. Check hand brake assembly by setting the hand brake and testing rear wheels for braking action.

k. Inspect the test stand trailer and cabinet for any damage, making certain that all bolts and screws are secured.

Check doors and door latches for proper closing and locking.

l. Open electric motor access door and remove external electrical cable. Lay out cable and inspect condition of cable and end fitting. Any damage to the cable end fitting or evidence of broken wires in the cable is cause for replacement

of the cable. Ensure cable ends are securely connected to terminal boards 1 and 2 (TB1, TB2) in the electrical assembly

enclosure. A new test stand is factory wired for 220 volt, 3 phase, 60 hertz operation. Refer to Figure 1-5 to verify test

stand is wired for 220 volt operation. or to convert to 440 volt operation.

3-8. Servicing Hydraulic System. Service the hydraulic system for use as follows:

a. If the hydraulic fluid reservoir (Figure 1-2) has been filled with a preservative fluid for shipment, drain the reservoir by opening the reservoir drain plug in the bottom of the reservoir. Make certain drain plug is closed after reservoir

has been completely drained.

b. Drain the preservative fluid (if necessary) from the hydraulic system at the low pressure filter drain (Figure 1-2).

When completely drained, replace drain plug.

c. If necessary, drain the preservative fluid from the high pressure pump by removing the drain plug located in the

corner of the pump case. When completely drained, replace plug. Refill pump case with hydraulic fluid, MIL-H-83282.

3-2
TM 1-4920-446-13 & P

d. Place main pump circuit breaker located in the electrical components panel in ON position. This will energize

the reservoir fluid level gauge located on the control panel.

e. Ensure drain valve is closed then fill the test stand reservoir with hydraulic fluid, MIL-H-83282, until the fluid level

gage indicates 3/4 full.

3-9. Preliminary Lubrication. Carefully inspect the test stand lubricating points referred to in Figure 3-1. Be sure that

initial lubrication exists at all specified points.

SECTION III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

3-10. General Information. Maintenance consists of periodic inspections of the hydraulic and electrical components,

including piping, hoses, and connections; replacement of filter elements; testing of instrument accuracy; troubleshooting

a malfunctioning unit; and lubrication. Section V of this chapter provides repair or replacement instructions authorized at

the Aviation Unit Maintenance level. Repair or replacement of all other parts is to be done at the Aviation Intermediate

Maintenance Level (annotated in parenthesis after the component to be maintained). The AVUM/AVIM Maintenance

procedures complies with the maintenance Allocation Chart, Appendix B.

3-11. Periodic inspection and servicing. The test stand shall be periodically inspected in accordance with Table 3-1.

Lubrication shall be performed as part of periodic inspection. Daily inspections should be performed before and/or after

each day's operation. Intermediate and periodic inspections (Tables 3-2 and 3-3) will be done at operating intervals of 50

and 100 hours. Refer to Table 3-4 for daily servicing requirements, and to Table 3-5 for a list of lubricants to be used.

NOTE

Keep all foreign matter out of lubricants. Do not leave lubricant containers open any longer than necessary. Store

lubricants in a clean, dry area.

3-3
TM 1-4920-446-13 & P

Figure 3-1. Lubrication Diagram

3-4
TM 1-4920-446-13 & P

Table 3-1. Daily Inspection Requirements

Item Period Requirements

Hydraulic reservoir

Cabinet interior

Trailer

Control panel gauges and controls

Test stand

Preinspect /postinspect

Preinspect /postinspect

Preinspect/postinspect

Preinspect/postinspect

Postinspect

Check fluid level; add fluid as needed.

Inspect for leaks. Check hydraulic line

connections for loose connections and

damage. Correct or report defects.

Check electrical wiring for breaks,

worn insulation, and loose connections. Correct or report defects.

Inspect tires for deep cuts and excessive wear. Correct or report defects.

Check for broken glass, bent indicating needles, or other obvious defects.

Check that all controls operate

smoothly and are tightly mounted.

Correct or report defects.

Start and operate test stand and check

for hydraulic leaks. Check to make

sure that 3000 PSI hydraulic pressure

can be obtained at maximum GPM

flow. Check temperature and flow indicators.

3-5
TM 1-4920-446-13 & P

Table 3-2. Intermediate Inspection Requirements

Item Period Requirements

General

Lubrication fittings

Control panel

Gauges and meters

Control valves

Tires

50 hour

50 hour

50 hour

50 hour

50 hour

50 hour

Check general appearance of test

stand, paying particular attention to

cleanliness. Perform services listed in

Table 3-1.

Check for missing or damaged lubrication fittings and for indications of

improper lubrications. Lubricate as

necessary according to Table 3-5. Replace missing or damaged fit Correct

all oil or grease leaks.

Inspect control panel for loose

mounting hardware.

Check to see that all gauges indicate

correctly and that glass is not cracked

or broken. Tighten loose mounting

hardware and hydraulic connections.

Replace any defective or damaged

gauge.

Check to see that all meters are tightly

mounted and operate properly. Check

that glass is not cracked or broken and

pointers are not bent or broken.

Tighten loose electrical connections

and mounting hardware. Replace any

defective or damaged meter.

Inspect all control valves for packing

leaks. Check to see that they operate

properly. See that handwheels are

tightly mounted. Tighten packing, or

replace if necessary. Replace any

defective or damaged valve.

Inspect all tires for underinflation, abnormal or uneven wear, cuts, embedded foreign matter, and missing valve

caps. Remove embedded foreign mat

3-6
TM 1-4920-446-13 & P

Table 3-2. Intermediate Inspection Requirements (Contd)

Item Period Requirements

Wheels

Axle

Brake assembly

High pressure filter assembly

Oil temperature switch

Low pressure filter assembly

50 hour

50 hour

50 hour

50 hour

50 hour

50 hour

ter Replace cut or worn tires. Ensure

that all tires are inflated to correct

pressure (60 PSI) and that all valve

caps are in place.

Inspect for loose wheel mounting

bolts. Inspect wheel bearings for

proper adjustment. Tighten loose

wheel bolts and adjust wheel bearings

as required.

Inspect axle assemblies for loose

mounting and misalignment. Inspect

springs for cracks, breaks, and weakened condition. Tighten all axle

mounting bolts. Align front wheels as

required. Replace defective springs.

Check brake assembly for unsatisfactory braking action. Check brake rods

for loose mounting. Tighten all brake

assembly mounting hardware and adjust brakes as required.

Inspect filter assembly for dirty or

clogged condition causing excessive

pressure drop. Replace dirty or

clogged filter element.

Inspect switch for security and loose

mounting. Replace inoperative or

damaged switch.

Inspect filter assembly for dirty or

clogged condition causing excessive

pressure drop. Replace dirty or

clogged filter element.

3-7
TM 1-4920-446-13 & P

Table 3-3. Periodic Inspection Requirements

(In addition to the 50 hour inspection

requirements, perform the following tasks)

Item Period Requirements

General 100 hour Inspect test stand for general

appearance, paying particular

attention to cleanliness. Perform services listed in Table 3-1

Markings 100 hour Inspect identification plates and

markings for legibility.

Paint 100 hour Inspect for chipped paint and

exposed and rusty metal. Correct as necessary.

Electric Motor/ 100 hour Inspect electric motor securely

Hydraulic Pump mounted and electrical connections tight. Inspect hydraulic

pump for secure mounting of

flexible coupling and hydraulic

connections. Tighten all loose

hydraulic connections.

Hose assemblies 100 hour Inspect all hose assemblies for

loose connections, cracks,

breaks, and frayed or rotted

fabric covering. Tighten loose

connections. Replace hose assembly, if it is otherwise defective.

Hydraulic tubing 100 hour Inspect tubing for cracks,

breaks, and distortion. Tighten

all hydraulic connections. Replace damaged or defective tubing or fittings.

1⁄2 , 3⁄4 , and 1

inch external hoses. 100 hour Inspect condition of hoses, and

couplings. Ensure dust caps

installed on couplings.

3-8
TM 1-4920-446-13 & P

Table 3-4. Daily Servicing

System Component Requirements

Hydraulic Reservoir (Figure 1-2) Check reservoir fluid level.;

Add hydraulic fluid as

necessary.

Access door hinges Check for free movement.

Lubricate, if needed (Table 3-5)

Draw bar Check for free movement.

Lubricate, if needed (Table 3-5)

Table 3-5. Lubricants

Draw bar: assembly and latch VV-L-800

Door hinges and latches

VV-L-800 ~

Wheel bearings

MIL-G-10924

Tie rod ends

MIL-G-10924

Brake assy yokes

VV-L-800

Spring bolt lube fitting

(front and rear) MIL-G-10924

Steering arm center pin

MIL-G-10924

Electric Motor MIL-L-15719

3-12. Lubrication. Lubrication of test stand components and assemblies should be performed in accordance with Figure

3-1, and Table 3-4.

3-9
TM 1-4920-446-13 & P

SECTION IV. TROUBLESHOOTING

3-13. Troubleshooting. In the event that operation of the test stand becomes faulty or erratic, refer to the troubleshooting chart, Table 3-6; to aid in isolating and correcting troubles.

Table 3-6. Troubleshooting Chart

Malfunction Inspect Corrective Action

Failure of high pressure Low fluid content in Refill reservoirs to specified.

pump. test stand or aircraft

reservoirs.

Note: Low boost pres Air leak in boost pump Check and tighten all fittings.

sure will shutdown test intake line

stand

Mechanical failure of pump. Replace pump. See para. 3-63.

Shaft seal leakage of Replace pump See para. 3-63.

pump.

Pump fails to deliver Incorrect operating Check correct operating pro

sufficient volume procedures cedure. See Chapter 2. Also

check volume control. See

para. 3-64.

Pump seizure due to Maintain adequate supply of

lack of fluid supply hydraulic fluid in test stand

or aircraft reservoirs.

Replace pump. See para. 3-63.

Defective high pres Remove and service or re

sure relief valve place. See para. 3-67, 3-68,

and Figure C-10.

Pump fails to compen Incorrect operating Check correct operating prosate procedure cedure. See Chapter 2.

Pressure Compensator Replace compensator valve

valve inoperative (Figure 1-4) on control

panel. See para. 3-68

Test stand fails to High pressure relief Replace valve. See para.

develop sufficient pres valve sticking or 3-67, 3-68, and Figure C-10

sure scored

System pressure too Compensator improperly Adjust pressure compensator

high adjusted valve to correct setting for

3-10
TM 1-4920-446-13 & P

Table 3-6. Troubleshooting Chart (Contd)

Malfunction Inspect Corrective Action

aircraft system specified.

Check operating procedures in

Chapter 2

High pressure relief If inoperative, replace

valve valve. See para. 3-67, 3-68,

and Figure C-10.

.:

High pressure relief Relief valve cone not If chattering persists, revalve chattering seated properly due to place valve. See para. 3-68,

dirt or foreign matter and Figure C-10.

lodged between cone

and seat

Test stand inoperative Check main power cable Ensure cable end fully seated

in receptacle. Ensure

receptacle has electricity.

Main circuit breaker Reset if tripped.

CB1

.

Fuse (F1) Remove and check fuse (F1).

Replace if defective.

Magnetic Starter Reset L1, L2, or L3 if

tripped.

Hydraulic pump motor Defective circuit Replace faulty circuit

inoperative breaker breaker.

Overload activated Reset or Replace overload

(will shutdown test as necessary. Check motor

stand) for cause of fault. Remove

per para. 3-51 and replace

if necessary.

Control circuit inopera- Fuse (F1) If blown, replace fuse.

tive Figure C-4. Check for use

of overload. Repair fault.

Input wiring connected Check input wiring to ensure

improperly it conforms to Figure 1-5

for 220 or 440 volts.

Indicator lights do not Fuse (F1) If blown, replace fuse. Figure C-4.

illuminate Check light sockets

and wiring for shorts.

3-11
TM 1-4920-446-13 & P

Table 3-6. Troubleshooting Chart (Contd)

Malfunction Inspect Corrective Action

Bulb(s) burned out Replace bulb(s).

Electrical system Broken, loose, or Check electrical circuits

failure(s) grounded wires and con- with electrical system

nections schematic (Figure 1-3).

Improper connections Check electrical connections

for 220 or 440 volt input.

See Figure 1-5.

SECTION V. MAINTENANCE PROCEDURES

3-14. Maintenance of significant components. For maintenance procedures, the trailer will be divided into the assemblies listed below.

Assembly Includes Refer to

Paragraph

Cabinet Doors, Catches, Panels 3-15

Chassis Axle and steering assembly tie rods 3-19

and ends, springs, wheels, hub and

bearings, brake assembly, tires and

tubes, tow bar.

Electrical System Motors, switches, and circuit breakers, 3-49

wiring and cables, fuses.

Hydraulic System Pumps, cooler, compensator control, 3-61

volume control, valves, fluid reservoir,

filter assemblies, lines, tubing, fittings,

hose assemblies, manifolds, pressure

gauges.

Instrument Panel Control knobs, panel assembly instruments.3-81

Frame Assy Frame work tiedown/lifting rings stencil data, enclosure latches3-90

3-12
TM 1-4920-446-13 & P

3-15. Summary of cabinet assembly maintenance. Maintenance tasks are listed below with information necessary to locate detailed procedures.

Task

Number

Task Refer to

Paragraph

1 Inspect cabinet assembly. 3-16

Perform task 1, then perform task 2

and 3 as needed.

2 Repair cabinet assembly. 3-17

3 Replace cabinet assembly 3-18

3-13
TM 1-4920-446-13 & P

3-16. Cabinet assembly 3-16

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

Inspect doors, fasteners and access panels for damage or wear, positive closing and locking, and positive latching in

open position.

END OF TASK

3-14
TM 1-4920-446-13 & P

3-17. Cabinet assembly - Repair 3-17

This task covers: Repair

INITIAL SETUP

Tools:

Shop Set, AVIM, Sheet Metal, NSN 4920-00-166-5505

Shop Set, AVIM, Welding, NSN 4920-00-163-5093

Personnel Required:

MOS 68G

Reference Information:

Para. 3-16 Illustration

REPAIR (AVIM):

1. Remove dents in doors and access panels where possible and repair welds as necessary.

2. Replace fastening and latching hardware, and hinges if worn or damaged.

END OF TASK

3-15
TM 1-4920-446-13 & P

3-18. Cabinet assembly - Replace 3-18

This task covers: Removal and installation

INITIAL SETUP

Personnel Required:

MOS 67

Reference Information:

Para. 3-16 Illustration

REMOVAL

1. Ensure door to electrical component box and all cabinet access doors/panels are latched shut.

2. Unfasten frame to cabinet catches (8 total).

3. Using handles at each end lift cabinet up and off frame.

INSTALLATION

1. Ensure door to electrical component box and all cabinet doors and access panels are latched shut.

CAUTION

When installing cabinet, make sure left side does not hit reservoir drain valve lever.

2. Using handles at each end, lift cabinet up and set on frame.

3. Attach catches to cabinet (8 total).

END OF TASK

3-16
TM 1-4920-446-13 & P

3-19. Summary of chassis maintenance. Maintenance tasks are listed below with information necessary to locate detailed

procedures.

Task

Number

Task Refer to

Paragraph

1. Inspect axle and steering assembly.

Perform task 1, then perform task 2, 3, 4, and 5 as needed.

3-20

2. Service axle and steering assembly. 3-21

3 Replace axle and steering assembly. 3-22

4. Repair axle and steering assembly. 3-23

5 Repair axle and steering assembly. 3-24

6. Inspect tie rods and ends. 3-25

Perform task 6, then perform task 7 and 8 as needed.

7. Service tie rod ends. 3-26

8. Replace tie rod ends. 3-27

9. Inspect springs.

Perform task 9, then perform 10 and 11 as needed.

3-28

10. Service springs. 3-29

11. Replace springs. 3-30

12. Inspect wheels. 3-31

Perform task 12, then perform task 13 and 14 as needed.

13. Service wheels. 3-32

14. Replace wheels. 3-33

15 Inspect hub and bearings. 3-34

Perform task 15, then perform task 16 and 17 as needed.

3-17
TM 1-4920-446-13 & P

3-19. Summary of chassis maintenance. (Contd)

Task

Number

Task Refer to

Paragraph

16. Service hub and bearings. 3-35

17. Replace hub and bearings. 3-36

18. Inspect brake assembly. 3-37

Perform task 18, then perform task 19, 20 and 21 as

needed.

19 Service brake assembly 3-38

20. Adjust brake assembly 3-39

21. Replace brake assembly 3-40

22. Inspect tire and tube. 3-41

Perform task 22, then perform task 23, 24 and 25 as

needed.

23. Service tire and tube. 3-42

24. Repair tire and tube. 3-43

25. Replace tire and tube. 3-44

26. Inspect tow bar assembly. 3-45

Perform task 26, then perform task 27, 28 and 29 as

needed.

27. Service tow bar assembly. 3-46

28. Repair tow bar assembly. 3-47

29. Replace tow bar assembly. 3-48

3-18
TM 1-4920-446-13 & P

3-20. Axles and steering assembly - Inspect 3-20

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION:

1. Check axle and steering assembly for bends or distortion.

2. Check axle and steering assembly for cracks, burrs, sharp edges and other similar damage.

3. Check axles and steering assembly for loose, missing, or worn parts.

END OF TASK

3-19
TM 1-4920-446-13 & P

3-21. Axles and steering assembly - Service 3-21

This task covers: Service

INITIAL SETUP

Tools:

Tool Set, AVUM Set No. 2 NSN 4920-00-567-0476

Material Required:

Grease - MIL-G-10924

Personnel Required:

MOS 67

SERVICE:

1. Apply grease MIL-G-10924 to lube fittings on steering assembly with grease gun as indicated in figure 3-1. (7 points)

2. Apply MIL-G-10924 grease to spring and shackle attaching bolts 3 front and 3 rear (see Figure 3-1).

3. Tighten loose hardware and replace missing hardware as required.

END OF TASK

3-20
TM 1-4920-446-13 & P

3-22. Axles and steering assembly - Replace 3-22

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Special Tools:

Jack 2 ton (2)

Jack stand (2)

Chock (2)

Parts Required:

Pin, Cotter, MS 24665-355 (2)

Personnel Required:

MOS 67

REMOVAL:

Front Axle and Steering Assembly

1. Chock wheels.

2. Jack up trailer, install jackstands so tires have a 1/2 inch clearance from the ground.

GO TO NEXT PAGE

3-21
TM 1-4920-446-13 & P

3-22. Axles and steering assembly - Replace (Contd) 3-22

3. Install two small jacks under front axle.

4. Remove cotter pins from bolts connecting axle to the spring.

5. Remove nuts and bolts connecting the axle to the spring.

6. While supporting forward radius rod, disconnect two radius rod clamps.

7. Lower the axle with the small jacks.

8. Remove small jacks.

9. Pull the front axle out of the front of the test stand.

INSTALLATION:

Front Axle and steering assembly.

1. Position front axle and steering assembly below elevated test stand.

2. Place two small jacks under axle.

3. Support radius rod then raise axle and attach to spring assembly with nuts and bolts.

4. Install cotter pins in spring bolts.

5. Attach radius rod using radius rod clamps.

6. Remove the two small jacks.

7. If only replacing front axle and steering assembly, lower test stand to ground and remove jack stands.

GO TO NEXT PAGE

3-22
TM 1-4920-446-13 & P

3-22. Axles and steering assembly - Replace (Contd) 3-22

Rear Axle

1. Chock wheels.

2. Jack up trailer, install jackstands so tires have a 1/2 inch clearance from the ground.

3. Install two small jacks under rear axle.

4. Disconnect two short brake rods from the brake lever at each side.

5. Remove cotter pins from bolts connecting axle to the spring.

6. Remove nuts and bolts connecting the axle to the spring.

7. While supporting the rear radius rod, disconnect the two radius rod clamps.

8. Lower the axle with the small jacks.

9. Remove small jacks.

10. Pull the rear axle out the rear of the test stand.

INSTALLATION:

Rear Axle:

1. Position rear axle below elevated test stand.

2. Place two small jacks under axle.

GO TO NEXT PAGE

3-23
TM 1-4920-446-13 & P

3-22. Axles and steering assembly - Replace (Contd) 3-22

3. Support radius rod then raise axle and attach to spring assembly with bolts and nuts.

4. Install cotter pins in bolts connecting axle to spring.

5. Attach radius rod clamps.

6. Remove small jacks from under axle.

7. Attach the two short brake rods, one at each side.

8. If only replacing rear axle, lower test stand to ground and remove jack stands.

END OF TASK

3-24
TM 1-4920-446-13 & P

3-23. Axles and steering assembly - Repair 3-23

This task covers: Disassembly and Reassembly

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-22 Axle and steering assembly removed.

DISASSEMBLY (AVIM):

Using the breakdown illustration of the running gear, front and rear axle, disassemble to the extent necessary for repair.

REASSEMBLY (AVIM):

Refer to the illustration of the running gear, front and rear axle and reassemble to the extent of disassembly.

END OF TASK

3-25
TM 1-4920-446-13 & P

3-24. Axles and steering assembly - Repair 3-24

This task covers: Repair

INITIAL SETUP

Tools:

Shop Set, AVIM, Welding, NSN 4920-00-163-5093

Personnel Required:

MOS 44B

Reference Information:

TM 55-1500-204-25/1 General Aircraft Maintenance Manual.

Equipment Condition:

Para. 3-22 Axles and steering assembly removed.

Para. 3-27 Tie rods and ends removed.

Para. 3-33 Wheels removed.

Para. 3-36 Hubs and bearing removed.

Para. 3-40 Brake assembly removed.

Para. 3-48 Tow bar removed.

REPAIR (AVIM):

1. Welding. Welding to repair cracks is to be done in accordance with TM 55-1500-204-25/1.

2. Use appropriate hand file to remove burrs and sharp edges from axles and steering assembly.

END OF TASK

3-26
TM 1-4920-446-13 & P

3-25. Tie rods and ends - Inspect 3-25

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION:

1. Check tie rod assembly for bends or distortion.

2. Check tie rod assembly for loose, missing or damaged parts.

END OF TASK

3-27
TM 1-4920-446-13 & P

3-26. Tie rods and ends - Service 3-26

This task covers: Service

INITIAL SETUP

Tools:

Tool Set, AVUM Set No. 2 NSN 4920-00-567-0476

Material Required:

Grease - MIL-G-10924

Personnel Required:

MOS 67

SERVICE:

Apply MIL-G-10924 grease to lube fittings in ball joints on tie rod ends. Use grease gun for this task.

END OF TASK

3-28
TM 1-4920-446-13 & P

3-27. Tie rod and ends - Replace 3-27

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Parts Required:

Cotter Pins

Personnel Required:

MOS 67

REMOVAL:

1. Straighten out and remove two cotter pins located at both ends of the tie rod assembly.

2. Unthread the two slotted hex nuts securing the tie rod assembly to the axle and to the tongue assembly. Remove tie

rod.

3. Loosen jam nuts.

4. Remove ball joints if required.

INSTALLATION:

1. Install ball joint into the tie rods.

2. Tighten jam nuts.

3. Position one end of the tie rod assembly through hole in axle knuckle and the other end through hole in tongue assembly.

4. Install tie rod assembly from the bottom.

5. Install two slotted hex nuts securing the tie rod to the axle knuckle and the tongue assembly. Thread the nuts on the

bolts far enough to install new cotter pins through slots in nuts into the hole in the bolts.

6. Bend the open end of the cotter pins to secure them in place.

END OF TASK

3-29
TM 1-4920-446-13 & P

3-28. Springs - Inspect 3-28

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION:

Inspect springs for loose or missing parts and damaged or broken leafs.

END OF TASK

3-30
TM 1-4920-446-13 & P

3-29. Springs - Service 3-29

This task covers: Service

INITIAL SETUP

Tools:

Tool Set, AVUM, Set No. 2 NSN 4920-00-567-0476

Personnel Required:

MOS 67

SERVICE:

1. Tighten loose hardware.

END OF TASK

3-31
TM 1-4920-446-13 & P

3-30. Springs - Replace 3-30

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General NSN 5180-00-323-4692

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-22 Axles and steering assembly removed.

REMOVAL:

1. While supporting spring from below, remove two U bolts.

2. Remove spring from test stand.

INSTALLATION:

1. Position spring below test stand.

2. Install two U bolts.

END OF TASK

3-32
TM 1-4920-446-13 & P

3-31. Wheel assembly - Inspect 3-31

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

Equipment Conditions:

Para. 3-33 Wheel assembly removed.

INSPECTION:

1. Check wheel assembly for cracks, burrs, sharp edges and other similar damage.

2. Check wheel assembly for bends or distortion.

3. Check wheel assembly for loose, missing or damaged parts.

END OF TASK

3-33
TM 1-4920-446-13 & P

3-32. Wheel assembly - Service 3-32

This task covers: Service

INITIAL SETUP

Tools:

Tool Set, AVUM Set No. 2 NSN 4920-00-567-0476

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Personnel Required:

MOS 67

Equipment Conditions:

Para. 3-33 Wheel removed from test stand.

SERVICE:

1. Use the appropriate hand file contained in. the tool Kit to remove burrs and sharp edges.

2. Tighten loose parts. Also replace missing, damaged, bent or distorted parts.

END OF TASK

3-34
TM 1-4920-446-13 & P

3-33. Wheel assembly - Replace 3-33

This task covers: Removal, Installation, Disassembly and Reassembly

INITIAL SETUP

Tools:

Tool Set, AVUM, Set No. 2, NSN 4920-00-567-0476

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Wrench, Torque 0-600 in-lbs

Personnel Required:

MOS 67

REMOVAL:

1. Set parking brake. Chock wheels.

2. Loosen five lug nuts.

3. Jack up axle so that tire is 1/2 inch off the ground. Install jack stand.

4. Remove five nuts with washers securing rim assembly, tire and tube to hub.

5. Remove rim assembly, tire and tube from hub.

INSTALLATION:

1. Position the rim assembly, tire and tube on hub.

2. Install five washers and nuts to secure the rim assembly, tire and tube to

hub.

3. Remove jack stand and lower axle to the ground.

4. Tighten nuts to a torque of 540 in-lbs.

5. Remove chocks and release parking brake as necessary to move unit.

DISASSEMBLY (Wheel Assembly Removed from Hub)

Deflate tire before loosening bolts securing rim halves. Failure to deflate tire could

cause explosive rim failure.

GO TO NEXT PAGE

3-35
TM 1-4920-446-13 & P

3-33. Wheel assembly - Replace (Contd) 3-33

1. Depress valve in valve stem to allow air to be released from tube.

2. Remove eight nuts and washer from bolts securing both halves of the rim assembly together.

3. Remove eight bolts and separate both halves of rim assembly from the tire and tube, being careful not to damage

the valve stem on the tube.

REASSEMBLY:

1. Position both halves of rim assembly on the tire and tube. Align holes being careful not to pinch the tube between

the rim halves or damage the valve stem.

2. Insert eight bolts in the rim assembly and install eight washers and nuts. Tighten to a torque of 228 in-lbs.

3. Inflate tire and tube to 60 psi.

END OF TASK

3-36
TM 1-4920-446-13 & P

3-34. Hub and bearings - Inspect 3-34

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

Equipment Condition to perform Step 3:

Para. 3-36 Hub and bearings removed.

INSPECTION:

1. Loosen 5 lug nuts.

2. Jack up trailer, install jack stands.

3. Check wheel for any sideways movement of bearings. Note: wheel is to be raised off the ground to complete this

task.

4. Check bearings for excessive noise when wheel is rotated.

5. Remove hub and bearings (para. 3-36).

6. Check hub and bearings for worn or damaged parts.

GO TO NEXT PAGE

3-37
TM 1-4920-446-13 & P

3-34. Hub and bearings - Inspect (Contd) 3-34

3-38
TM 1-4920-446-13 & P

3-35. Hub and bearings - Service 3-35

This task covers: Service

INITIAL SETUP

Tools:

Tool Set, AVUM Set No. 2, NSN 4920-00-567-0476

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Material Required:

Grease - MIL-G-10924

Dry Cleaning Solvent, P-D-680, Type II

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-36 Bearings removed from hub.

SERVICE:

Dry cleaning solvent is flammable, toxic, and a skin irritant. Keep open flame away,

avoid prolonged skin contact, and wash affected skin areas.

1. Rinse bearings in dry cleaning solvent (or kerosene as an alternate) to remove old grease. Remove bearings from

solvent and let air dry.

2. Repack bearings with grease. Hand pack.

END OF TASK

3-39
TM 1-4920-446-13 & P

3-36. Hub and bearings - Replace 3-36

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Tool Set, AVUM, Set No. 2, NSN 4920-00-567-0476

Parts Required:

Cotter Pin, Part No. 4800-4 (CAGE 22938) or MS24665-360

Grease Seal, Part No. 6311(22938) or 21208 (CAGE 51829)

Personnel Required:

MOS 67

REMOVAL:

1. Remove hub cap.

2. Straighten ends of cotter pin and pull out of slotted hex nut.

3. Remove slotted hex nut, thrust washer and outer bearing.

4. Remove wheel assembly from axle.

5. Remove inner grease seal and inner bearing cone from hub. Discard seal.

6. Drive inner and outer bearing cups from hub.

7. Service bearings in accordance with para. 3-35.

GO TO NEXT PAGE

3-40
TM 1-4920-446-13 & P

3-36. Hub and bearings - Replace (Contd) 3-36

INSTALLATION:

1. Drive inner bearing cup and outer bearing cup into hub until they bottom out in hub.

2. Insert inner bearing cone into hub and install new grease seal into hub making certain that seal does not become

cocked in the hub.

3. Slide wheel assembly with bearing cups, inner bearing cone and grease seal installed, on axle shaft or axle and king

pin pivot assembly.

4. Install outer bearing cone, thrust washer, and slotted hex nut on axle shaft.

5 Tighten slotted hex nut while rotating the tire until a noticeable drag is felt.

Back off the nut about 1/8 turn to the nearest cotter pin slot.

6. Install cotter pin and bend open end to keep it in place.

7. Install hub cap.

END OF TASK

3-41
TM 1-4920-446-13 & P

3-37. Brake assembly - Inspect 3-37

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

DISASSEMBLY FOR INSPECTION

1. Chock the forward wheels.

2. Jack up unit so that rear wheels are 1/2 inch off the ground.

3. Install jack stands.

4. Release hand brake.

5. Remove grease cap.

GO TO NEXT PAGE

3-42
TM 1-4920-446-13 & P

3-37. Brake assembly - Inspect (Contd) 3-37

6. Remove cotter pin from hex nut.

7. Remove nut and washer.

8. Remove wheel assembly.

9. Check brake drum and shoe for wear.

10. Check brake drum and shoe assembly for evidence of grease, oil or other contaminants.

11. Check brake assembly for loose, missing or damaged parts.

REASSEMBLY FOLLOWING INSPECTION

1. Install wheel, drum and bearing as a unit.

2. Install outer bearing.

3. Install washer and hex nut.

4. Tighten hex nut while turning wheel until resistance is felt. Back off 1/8 turn to nearest cotter pin slot.

5. Install cotter pin and bend open end of cotter pin.

6. Install grease cap.

7. Remove jack stands.

8. Lower unit to the ground.

END OF TASK

3-43
TM 1-4920-446-13&P

3-38. Brake assembly - Service 3-38

This task covers: Service

INITIAL SETUP

Material Required:

Lubricating Oil VV-L-800

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-36 Hub and bearing removed. (Note: Remove hub, bearings and wheel as a single assembly).

SERVICE:

1. Apply lubricating oil to hand brake as indicated in Figure 3-1 and Table 3-5.

2. Clean grease, oil, or other contaminants from brake drum and shoe assembly.

3. Replace loose, missing, damaged or worn parts as indicated in para. 3-40.

END OF TASK

3-44
TM 1-4920-446-13 & P

3-39. Brake assembly - Adjust 3-39

This task covers: Adjustment

INITIAL SETUP

Personnel Required:

MOS 67

ADJUSTMENT

1. Adjust both brakes simultaneously by rotating the knurled knob on the brake operating handle. If this adjustment is

insufficient, proceed to step No. 2.

2. Loosen lock nuts on either end of long connecting rod.

3. Make sure the operating lever is in the off position.

4. Remove cotter pin and clevis pin from rear clevis on the long connecting rod.

5. Shorten or lengthen rod as necessary by turning rod or clevis.

6. Reinstall clevis pin and cotter pin in rear clevis.

7. Check holding ability of brake. If further adjustment is necessary, repeat steps 4, 5 and 6.

8. If braking action on the rear wheels is uneven, individual brake action may be adjusted by lengthening or shortening

the short connecting rod between the cross shaft and the brake lever at each rear wheel.

9. Loosen lock nuts on either end of the short connecting rod.

10. Make sure the operating handle is in the off position.

11. Remove cotter pin and clevis pin from rear clevis on the short connecting rod.

12. Shorten or lengthen rod as necessary by turning rod or clevis.

13. Reinstall clevis pin and cotter pin in rear clevis.

GO TO NEXT PAGE

3-45
TM 1-4920-446-13 & P

3-39. Brake assembly - Adjust (Contd) 3-39

14. Check holding ability of brake. If further adjustment is necessary repeat steps 11, 12, and 13.

END OF TASK

3-46
TM 1-4920-446-13 & P

3-40. Brake assembly - Replace 3-40

This task covers: Removal and Installation (AVIM)

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Shop Set, AVIM Tool Crib NSN 4920-00-472-4183

Wrench, Torque 0-600 in-lbs

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-36 Hub and bearings removed. (Note: Remove hub, bearings and wheel as a single assembly).

REMOVAL:

NOTE

Place the brake lever in the off position to perform the following task.

1. Disconnect the brake lever from the short connecting rod.

2. Remove four mounting bolts, lock washers and nuts securing the brake assembly to the rear axle.

3. Remove brake assembly.

GO TO NEXT PAGE

3-47
TM 1-4920-446-13 & P

3-40. Brake assembly- Replace (Contd) 3-40

INSTALLATION:

1. Position the brake assembly on the rear axle and align holes.

2. Install four mounting bolts through the brake assembly and place a lock washer and mounting nut on each bolt.

Tighten nuts to a torque of 228 in-lbs.

3. Connect brake lever to short connecting rod.

4. Ensure that bearings are properly installed in hub assembly.

5. Position brake drum and hub assembly on rear axle and reinstall, para. 3-37.

NOTE

Brake assembly is self adjusting.

END OF TASK

3-48
TM 1-4920-446-13 & P

3-41. Tire and tube - Inspect 3-41

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION:

1. Check tire pressure on all four tires. They should all be 60 psi.

2. Check tire for cuts, defects, wear and leaks.

3. Check tire for any object imbedded in the treads.

END OF TASK

3-49
TM 1-4920-446-13 & P

3-42. Tire and tube - Service 3-42

This task covers: Service

INITIAL SETUP

Personnel Required:

MOS 67

SERVICE:

Service of tire and tube. Check air pressure at 60 psi.

END OF TASK

3-50
TM 1-4920-446-13 & P

3-43. Tire and tube - Repair 3-43

This task covers: Repair (AVIM)

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Shop Set, AVIM Tool Crib, NSN 4920-00-472-4183

Personnel Required:

MOS 67

Reference Information:

TM 9-2610-200-24 Organizational, Direct Support and General Support Care, Maintenance and Repair of Pneumatic Tires and Inner Tubes.

Equipment Condition:

Para. 3-33 Wheel assembly removed from hub and tire and tube removed from rim assembly

REPAIR:

1. Repair any damaged tires or tubes.

2. All tires and tube repair will be done in accordance with TM 9-2610-200-24.

3. Remove any objects imbedded in the treads.

END OF TASK

3-51
TM 1-4920-446-13 & P

3-44. Tire and tube - Replace 3-44

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Personnel Required:

MOS 67

Reference Information:

TM 9-2610-200-24 Organizational, Direct Support and General Support Care, Maintenance and Repair of Pneumatic Tires and Inner Tubes.

Equipment Condition:

Para. 3-33 Wheel assembly removed from hub and tire and tube removed from rim assembly.

REMOVAL AND INSTALLATION

1. Replace any non-repairable tires or tubes.

2. Removal and installation of tire and tube is to be done in accordance with TM 9-2610-200-24.

END OF TASK

3-52
TM 1-4920-446-13 & P

3-45. Towbar assembly - Inspect 3-45

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION:

1. Check tow bar assembly for cracks, burrs, sharp edges and other similar damage.

2. Check towbar assembly for bends or distortion.

3. Check towbar assembly for loose, damaged or missing parts.

END OF TASK

3-53
TM 1-4920-446-13 & P

3-46. Towbar assembly - Service 3-46

This task covers: Service

INITIAL SETUP

Material Required:

Lubricating Oil VV-L-800

Personnel Required:

MOS 67

SERVICE:

Oil towbar linkage and lock with lubricating oil, VV-L-800, as depicted in Figure 3-1 and Table 3-5.

END OF TASK

3-54
TM 1-4920-446-13 & P

3-47. Towbar assembly - Repair 3-47

This task covers: Repair (AVIM)

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Shop Set, AVIM Welding NSN 4920-00-163-5093

Personnel Required:

MOS 44E

Reference Information:

TM 55-1500-204-25/1 General Aircraft Maintenance manual.

REPAIR:

1. Welding. Welding to repair cracks is to be done in accordance with TM 55-1500-204-25/1.

2. Use the appropriate hand file contained in the tool kit to remove burrs and sharp edges from towbar assembly.

3. Tighten loose parts. Replace missing, damaged, bent or distorted parts.

END OF TASK

3-55
TM 1-4920-446-13 & P

3-48. Towbar assembly - Replace 3-48

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Parts Required:

Cotter Pin MS24665-623

Personnel Required:

MOS 67

REMOVAL:

1. Straighten out cotter pins and remove from hinge pin securing the towbar assembly to the tongue assembly.

2. Remove hinge pin and towbar.

INSTALLATION:

1. Position towbar on tongue assembly install hinge pin, and new cotter pins. Bend over ends of cotter pins.

END OF TASK

3-56
TM 1-4920-446-13 & P

3-49. Summary of electrical system maintenance. Maintenance tasks are listed below with information necessary to

locate detailed procedures.

Task

Number Task

Refer to

Paragraph

1 Inspect main pump motor 3-50

Perform task 1, then task 2 as needed.

2 Replace main hydraulic pump motor. 3-51

3 Inspect switches and circuit breakers. 3-52

Perform task 3, then task 4 and 5 as needed.

4 Service switches and circuit breakers. 3-53

5 Replace switches and circuit breakers. 3-54

6 Inspect wiring and cables 3-55

Perform task 6, then task 7, 8, and 9.

7 Service wiring and cables 3-56

8 Repair wiring and cables. 3-57

9 Replace wiring and cables 3-58

10 Inspect fuses. 3-59

Perform task 10, then task 11 as needed.

11 Replace fuses 3-60

3-57
TM 1-4920-446-13 & P

3-50. Electric motor - Inspect 3-50

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 68F

INSPECTION:

1. Check security of electric motor mounting.

2. Check for failure of electric motor.

3. Check condition of electric wires and security of pump mounting.

END OF TASK

3-58
TM 1-4920-446-13 & P

3-51. Electric motor - Replace 3-51

This task covers: Removal, replacement, and installation

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Chain Hoist

Personnel Required:

MOS 67 and 68F

Equipment Condition:

Para. 3-18 Cabinet assembly removed.

Para. 3-71 Hydraulic reservoir removed (optional)

General Safety Instructions:

Be sure that all electrical power is removed from the unit before beginning any maintenance operation. To avoid personal injury test stand must be shut down and all hydraulic pressure relieved before beginning any maintenance operation.

REMOVAL - ELECTRIC MOTOR

1. Disconnect all hoses and tubing to pump.

2. Disconnect volume control extension shaft.

NOTE

Tag all disconnected wiring to ease installation.

3. Disconnect conduit and electrical connections inside the motor connection box.

4. Remove flow indicator assy by removing 2 lower pump mounting bracket bolts.

GO TO NEXT PAGE

3-59
TM 1-4920-446-13 & P

3-51. Electric motor - Replace (Contd) 3-51

Use two legged sling or other suitable lifting device which will prevent the motor and

pump from shifting when motor bolts are removed.

5. Attach suitable lifting device to motor lift brackets, take up slack then remove four mounting nuts, washers and

bolts; lift motor and pump assembly out of test stand, set assembly on work bench.

REPLACEMENT - ELECTRIC MOTOR

1. Remove four bolts attaching motor to pump mounting bracket and remove motor.

2. Remove rubber spider from inside bracket, then flexible coupling half, and key from motor shaft.

3. Position replacement motor on workbench.

4. Insert key in motor shaft keyway and install flexible coupling half on motor shaft. Do not tighten coupling half on

motor shaft at this time.

GO TO NEXT PAGE

3-60
TM 1-4920-446-13 & P

3-51. Electric motor - Replace (Contd) 3-51

5. Attach motor on mounting bracket using 4 bolts previously removed.

6. Remove cover plate on mounting bracket.

7. Position rubber spider between flexible coupling halves and slide motor coupling half against spider and tighten to

motor shaft. Install cover plate.

INSTALLATION - ELECTRIC MOTOR

1. Attach suitable lifting device to motor lift brackets and set motor and pump assembly in test stand.

2. Secure motor to frame using hardware previously removed.

3. Attach volume control extension shaft to pump.

While attaching flow indicator assembly, ensure spur gear mesh correctly.

4. Attach flow indicator assembly using 2 lower pump mounting bracket bolts.

5. Ensure hose/tube end fittings and pump fluid ports are clean, then connect hydraulic hoses/tubes to main and boost

pumps.

6. Connect electrical wires inside motor connection box.

END OF TASK

3-61
TM 1-4920-446-13 & P

3-52. Switches, circuit breakers, and lights - Inspect 3-52

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 68F

General Safety Instructions:

Be sure that all electrical power is removed from the unit before beginning any maintenance operation.

INSPECTION

1. Open access panel to both the electrical components box and the control panel.

2. Check switches, circuit breakers, and light for physical damage.

3. Check mounting hardware for tightness.

4. Check switch, circuit breaker, and light terminals to make sure wiring is secure.

5. With power applied, check for burned out light bulbs.

GO TO NEXT PAGE

3-62
TM 1-4920-446-13 & P

3-52. Switches, circuit breakers, and lights - Inspect (Contd) 3-52

END OF TASK

3-63
TM 1-4920-446-13 & P

3-53. Switches, circuit breakers and lights - Service 3-53

This task covers: Service

INITIAL SETUP

Personnel Required:

MOS 68F

SERVICE

1. Tighten mounting hardware.

2. Tighten terminal screws.

3. Replace burned out light bulbs.

END OF TASK

3-64
TM 1-4920-446-13 & P

3-54. Switches, circuit breakers, and lights - Replace 3-54

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Electrical, NSN 5180-00-323-4915

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-18 Cabinet Assy. removed.

Para .3-55 Electrical Components Box Door Open

REMOVAL - SWITCHES AND LIGHTS

1. Disconnect wiring from two switches, three lights, hourmeter, and transformers.

NOTE

Tag all disconnected wiring to ease reinstallation.

2. Remove two switches, three lights, hourmeter, and transformers.

INSTALLATION - SWITCHES AND LIGHTS

1. Install transformers, hourmeter, three lights, and two switches with mounting hardware.

2. Connect wiring using electrical wiring diagram, Figure 1-5 and tags as a guide.

INSTALLATION - CIRCUIT BREAKERS AND OTHER ELECTRICAL COMPONENTS

1. Install components in the electrical components panel with mounting hardware as necessary.

2. Connect wiring to devices using electrical wiring diagram Figure 1-5 and tags as a guide.

GO TO NEXT PAGE

3-65
TM 1-4920-446-13 & P

3-54. Switches, circuit breakers, and lights - Replace (Contd) 3-54

END OF TASK

3-66
TM 1-4920-446-13 & P

3-55. Wiring and cables - Inspect 3-55

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 68F

INSPECTION

1. Open electrical components box door.

2. Check wiring and cables for broken, loose, or grounded wires and connections.

3. Check electrical circuits with electrical system schematic Figure 1-3 for proper connections.

END OF TASK

3-67
TM 1-4920-446-13 & P

3-56. Wiring and cables - Service 3-56

This task covers: Service

INITIAL SETUP

Personnel Required:

MOS 67

SERVICE

1. Tighten loose connections and terminals.

2. Replace damaged or faulty wiring, cables, and terminals if not repairable.

END OF TASK

3-68
TM 1-4920-446-13 & P

3-57. Wiring and cables - Repair (AVIM) 3-57

This task covers: Repair

INITIAL SETUP

Tools:

Tool Kit, Electrical NSN 5180-00-323-4915

Shop Set, AVIM, Electrical Instrument NSN 4920-00-165-1453

Personnel Required:

MOS 68F

REPAIR

Repair damaged or loose wiring, cables, and terminals as necessary.

END OF TASK

3-69
TM 1-4920-446-13 & P

3-58. Wiring and cables - Replace (AVIM) 3-58

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Electrical NSN 5180-00-323-4915

Shop Set, AVIM, Electrical Instrument NSN 4920-00-165-1453

Personnel Required:

MOS 68

Equipment Condition:

Para. 3-18 Cabinet assembly removed.

Para. 3-55 Electrical components box door open.

REMOVAL

Disconnect both ends of damaged wires or cable and remove from test stand.

INSTALLATION

Install new wires or cable in the test stand in place of removed damaged wire or cable and connect each end of the wire

to its proper place.

END OF TASK

3-70
TM 1-4920-446-13 & P

3-59. Fuse - Inspect 3-59

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 68F

Equipment Required:

Continuity checker or ohmmeter

Equipment Condition:

Para. 3-55 Electrical components box door open

INSPECTION

Check F1, six ampere fuse (6) with continuity checker or ohmmeter. A good fuse will show continuity or zero ohms.

END OF TASK

3-71
TM 1-4920-446-13 & P

3-60. Fuse - Replace 3-60

This task covers: Removal and installation

INITIAL SETUP

Parts Required:

Fuse, NON6 (CAGE 71400)

Personnel Required:

MOS 68F

REMOVAL AND INSTALLATION

Remove fuse F1 (7) from its fuse holder and replace with new fuse.

END OF TASK

3-72
TM 1-4920-446-13 & P

3-61. Summary of hydraulic system maintenance. Maintenance tasks are listed below with information necessary to

locate detailed procedures.

Task

Number Task

Refer to

Paragraph

1 Inspect pump 3-62

Perform task 1, then task 2 as necessary.

2 Replace pump 3-63

3 Inspect volume control 3-64

Perform task 3, then tasks 4 and 5 as necessary.

4 Service volume control 3-65

5 Replace volume controls 3-66

6 Inspect valves 3-67

Perform task 6, then task 7 as necessary.

7 Replace valves 3-68

8 Inspect fluid reservoir 3-69

Perform task 8, then tasks 9 and 10 as necessary.

9 Replace fluid reservoir 3-70

10 Replace fluid reservoir 3-71

11 Inspect filter assemblies 3-72

Perform task 11, then tasks 12 and 13 as necessary.

12 Service filter assemblies. 3-73

13 Replace filter assemblies. 3-74

14 Inspect hydraulic piping assembly. 3-75

Perform task 14, then tasks 15, 16, and 17 as necessary.

15 Repair hydraulic piping assembly. 3-76

3-73
TM 1-4920-446-13&P

Task

Number Task

Refer to

Paragraph

16 Replace hydraulic piping assembly. 3-77

17 Test hydraulic piping assembly. 3-78

18 Inspect pressure gauges. 3-79

Perform task 18, then task 19 as necessary.

19 Replace pressure gauges. 3-80

3-74
TM 1-4920-446-13 & P

3-62. Pump - Inspect 3-62

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

1. Check performance of hydraulic pump during normal operation of test stand.

2. Check for leaks, damage, or loose connections at pump connection ports.

END OF TASK

3-75
TM 1-4920-446-13 & P

3-63. Pump - Replace 3-63

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Hydraulic, NSN 5180-00-323-4891

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-18 Cabinet removed

General Safety Instructions

Be sure that all electrical power is removed from the unit before beginning any maintenance operation. To avoid personal injury test stand must be shut down and all hydraulic pressure relieved before beginning any maintenance operation.

REMOVAL - MAIN PUMP

NOTE

The main hydraulic pump, boost pump, and electric motor will be removed and installed

as an assembly.

1. Position test stand under chain fall or other suitable lifting device.

2. Disconnect all electrical wiring and hydraulic tubing/lines from the motor/pump assembly.

3. Disconnect the volume control rod at the pump.

4. Remove flow indicator assembly by removing two lower pump mounting bolts.

Use two legged sling or other suitable lifting device which will prevent the motor and

pump from shifting when motor bolts are removed.

GO TO NEXT PAGE

3-76
TM 1-4920-446-13 & P

3-63. Pump - Replace (Contd) 3-63

5. Attach suitable lifting device to motor lift brackets, take up slack then remove four mounting nuts, washer, bevel

washers and bolts; lift motor and pump assembly out of test stand, set assembly on work bench.

6. Remove motor, pump, and boost pump out of test stand.

7. Position motor and pump assembly on suitable work surface.

8. Remove boost pump from main hydraulic pump.

9. Remove two remaining bolts holding main hydraulic pump to pump mounting bracket. Remove main hydraulic

pump.

10. Remove pump side of flexible coupling from pump shaft. Retain metal key.

INSTALLATION - MAIN PUMP

1. Install pump side of flexible coupling with metal key on main pump shaft.

2. Remove cover plate on pump mounting bracket to expose motor side of flexible coupling.

GO TO NEXT PAGE

3-77
TM 1-4920-446-13 & P

3-63. Pump - Replace (Contd) 3-63

3. Install main hydraulic pump using four bolts.

NOTE

Make sure that flexible coupling halves and rubber spider are properly seated.

4. Tighten pump coupling half to shaft, then replace mounting bracket cover plate.

5. Install boost pump onto main hydraulic pump.

Use two legged sling or other suitable lifting device which will prevent the motor and

pump from shifting when motor and pump are lifted.

6. Attach lifting device to motor lifting brackets.

7. Position motor, pump, and boost pump over chassis and attach using four mounting bolts. Remove lifting device.

8. Remove two lower pump bolts and reinstall flow indicator assy.

NOTE

While installing flow indicator assembly, ensure spur gears mesh correctly.

9. Connect all electrical wiring and hydraulic tubing/lines to the motor/pump assembly.

10. Reattach volume control rod at the pump.

END OF TASK

3-78
TM 1-4920-446-13 & P

3-64. Volume control - Inspect 3-64

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

1. Check volume control assembly for loose or missing parts.

2. Check volume control for proper operation under normal operating conditions (see operating instructions, Chapter

2).

END OF TASK

3-79
TM 1-4920-446-13 & P

3-65. Volume control - Service 3-65

This task covers: Service

INITIAL SETUP

Personnel Required:

MOS 67

SERVICE

Tighten or replace loose or missing parts on volume control assembly.

END OF TASK

3-80
TM 1-4920-446-13 & P

3-66. Volume control - Replace 3-66

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Hydraulic, NSN 5180-00-323-4891

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-18 Cabinet assy removed.

GO TO NEXT PAGE

3-81
TM 1-4920-446-13 & P

3-66. Volume control - Replace (Contd) 3-66

REMOVAL - VOLUME CONTROL

1. Remove nut and handle from volume control rod.

2. Loosen set screw at volume control stem.

3. Remove volume control rod.

INSTALLATION - VOLUME CONTROL

1. Install volume control rod on volume control stem.

2. Tighten set screw on volume control rod.

3. Install handle. Secure with nut.

END OF TASK

3-82
TM 1-4920-446-13 & P

3-67. Valves - Inspect 3-67

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

Check condition of valves for damage, loose connections, and leaks.

END OF TASK

3-83
TM 1-4920-446-13 & P

3-68. Valves - Replace 3-68

This task covers: Removal and Installation

INITIAL SETUP

Tools:

Tool Kit, Hydraulic, NSN 5180-00-323-4891

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-18 Cabinet assembly removed.

General Safety Instructions:

Be sure all electrical power is removed from the unit before beginning any maintenance

operation.

To avoid personal injury, test stand must be shut down and all hydraulic pressure relieved before beginning any maintenance operation.

NOTE

To minimize loss of hydraulic fluid during maintenance operations which require disconnecting of the hydraulic lines, set reservoir shutoff valve to the off position. Reposition

valve to the flow position at the completion of maintenance operation.

Tag all disconnected tubing and lines to ease reinstallation.

Removal:

The following valves are attached to the control panel. This area is extremely congested. To remove a defective valve,

it might be necessary to totally remove hydraulic tubing from the unit.

GO TO NEXT PAGE

3-84
TM 1-4920-446-13 & P

3-68. Valves - Replace (Contd) 3-68

Control Panel Mounted Valves: (See Figure 2-2 and Table 2-1 for identity by item number)

1. 4 way selector valve

2. Compensator shutoff valve

3. Gauge shutoff valve

4. High pressure relief valve

5. High pressure bypass valve

6. Outlet selector valve

7. Flow limit adjust valve

8. Pressure compensator valve

9. Reservoir shutoff valve (ensure reservoir is empty)

To Remove Valve:

1. Remove hydraulic tubing attached to valve and any other tubing as necessary. Cap lines.

2. Remove attaching hardware.

3. Remove valve.

The following valves are inline valves.

1. Check valve.

2. Check valve, 3/4" tube.

3. Reservoir drain valve (ensure reservoir is empty).

4. Low pressure relief valve (2).

To remove valve

1. Disconnect hydraulic plumbing at valve. Cap lines.

2. Remove valve.

GO TO NEXT PAGE

3-85
TM 1-4920-446-13 & P

3-68. Valves - Replace (Contd) 3-68

Installation:

Inline valves,

1. Position replacement valve.

2. Remove caps and attach tubing.

3. Pressurize system and check for leaks as appropriate.

Control panel mounted valves,

1. Using attaching hardware, install replacement valve.

2. Connect tubing.

3. Pressurize system and check for leaks as appropriate.

END OF TASK

3-86
TM 1-4920-446-13 & P

3-69. Fluid reservoir - Inspect 3-69

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67-series

INSPECTION

1. Check fluid level to make sure it is at least 3/4 full.

2. Check all tubing and line connections for leaks.

3. Check sending unit wire for loose connection or corrosion.

4. Check reservoir tank for physical damage.

END OF TASK

3-87
TM 1-4920-446-13 & P

3-70. Fluid reservoir - Repair (AVIM) 3-70

This task covers: Repair

INITIAL SETUP

Tools:

Tool Kit, Hydraulic, NSN 5180-00-323-4891

Shop Set, AVIM, Hydraulic, NSN 4920-00-165-1454

Parts Required:

Gasket (2) P/N 101471-01

Personnel Required:

MOS 68H

Equipment Condition:

Para. 3-18 Cabinet assy. removed

Para. 3-71 Fluid reservoir removed from test stand

REPAIR

GO TO NEXT PAGE

1. RESERVOIR

2. ELBOW

3. ELBOW

4. RESERVOIR DRAIN VALVE

5. GASKET

6. COVER, RESERVOIR FILL

7. COVER, RESERVOIR FLOAT

8. LOCK WASHER

9. SCREW

10. STRAINER AND FILLER

11. ELBOW

12. FILTER, BREATHER

13. INSTALLATION KIT

14. FLOAT ASSEMBLY

15. BOLT (4)

3-88
TM 1-4920-446-13 & P

3-70. Fluid reservoir - Repair (AVIM) (Contd) 3-70

When moving reservoir (1), care should be taken to avoid damaging elbows (2), (3), and

(11) and drain valve (4).

1. Remove access covers (6) and (7) by removing screws (9) and lockwashers (8).

2. Discard gaskets (5).

3. Clean and inspect interior.

4. Check operation of level indicator float (14).

5. Check strainer (10) and breather filter (12).

6. Repair any damage or replace broken parts as necessary.

7. Install new gaskets (5).

8. Replace access covers (6) and (7).

END OF TASK

3-89
TM 1-4920-446-13 & P

3-71. Fluid reservoir - Replace 3-71

This task covers: Removal and installation

INITIAL SETUP

Personnel Required:

MOS 68 - series 2 personnel required

Equipment Condition:

Para. 3-18 Cabinet assembly removed.

General Safety Instructions:

Be sure all electrical power is removed from the unit before beginning any maintenance

operation.

To avoid personal injury, test stand must be shut down and all hydraulic pressure

relieved before beginning any maintenance operation.

NOTE

Tag all disconnected tubing and lines to ease reinstallation.

REMOVAL

1. Drain reservoir (1) using drain valve (4). Reservoir contains 22 gals of fluid.

2. Disconnect return line from elbow (11) on side of reservoir.

3. Disconnect 2 hydraulic lines at elbows (2 and 3) on bottom of reservoir.

4. Disconnect sending unit wire (13).

5. Remove four mounting nuts, washers, and bolts (15).

NOTE

The reservoir drain valve (4) protrudes under the frame. When moving the reservoir, be

careful not to damage the reservoir drain valve.

6. Lift reservoir off of the test stand.

GO TO NEXT PAGE

3-90
TM 1-4920-446-13 & P

3-71. Fluid reservoir - Replace (Contd) 3-71

INSTALLATION

NOTE

The reservoir drain valve protrudes under the frame. When moving the reservoir be

careful not to damage the reservoir drain valve.

1. Position reservoir (1) in test stand.

2. Install four mounting bolts, washers, and nuts (15).

3. Connect sending unit wire (13).

4. Connect 2 hydraulic lines at elbows (2 and 3) on bottom of reservoir.

5. Connect return line at elbow (11) on side of reservoir.

6. Refill reservoir to 3/4 full of hydraulic fluid, MIL-H-83282.

END OF TASK

3-91
TM 1-4920-446-13 & P

3-72. Filter assemblies - Inspect 3-72

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67 - series

Reference Information:

Figure 1-2 for location of filters.

INSPECT

1. Check to see if a high or low pressure warning light on the control panel is on indicating excessive differential pressure at either of the test stand filters.

2. High differential pressure usually indicates a dirty filter element in need of replacement. See para. 3-73, Servicing

Filter Assemblies.

END OF TASK

3-92
TM 1-4920-446-13 & P

3-73. Filter assemblies - Service 3-73

This task covers: Service

INITIAL SETUP

Personnel Required:

MOS 67 - series

Parts Required:

Filter element, HP, AN6235-4A

Filter element, LP, AN6236-3

General Safety Instructions:

Test stand must be shut down and all pressure relieved before servicing filters.

Use volatile solvents only in a well ventilated area. Avoid prolonged contact with the

skin.

NOTE

It is not necessary to remove filters from test stand to change filter elements.

SERVICE - HIGH PRESSURE FILTER

1. Remove safety wire.

2. Remove filter bowl.

3. Remove filter element. See para. 3-74 for disassembly of filter.

4. Empty fluid from bowl.

5. Clean head assembly and bowl with cleaning solvent, P-D-680, Type II and clean cloth.

6. Install replacement filter element, AN6235-4A

7. Fill bowl approximately 3/4 full with hydraulic fluid and install.

GO TO NEXT PAGE

3-93
TM 1-4920-446-13 & P

3-73. Filter assemblies - Service (Contd) 3-73

8. If after replacing the filter element the differential pressure warning light still activates, the differential pressure switch

may be defective. See para. 3-88 to replace this switch.

9. Safety wire bowl to the head.

SERVICE - LOW PRESSURE FILTER

1. Loosen two bolts holding filter assembly cover enough to remove cover.

2. Drain filter assembly. Ensure drain plug is reinstalled.

3. Remove filter element.

4. Clean inside of filter housing with dry cleaning solvent, P-D-680, Type II and clean cloth.

5. Install replacement filter element, AN6236-3.

6. Install filter assembly cover and secure with two bolts.

7. Fill filter assembly with hydraulic fluid.

END OF TASK

3-94
TM 1-4920-446-13 & P

3-74. Filter assemblies - Replace 3-74

This task covers: Removal, Installation, Disassembly, and Reassembly

INITIAL SETUP

Tools:

Tool Kit, Aircraft Mechanics General, NSN 5180-00-323-4692

Material Required:

Antiseize tape MIL-T-27730

Parts Required:

Filter assembly HP 50223

Filter assembly LP 58342-01

Personnel Required:

MOS 67 - series

Equipment Condition:

Para. 3-18 cabinet assembly removed.

Test stand shut down and pressure exhausted.

NOTE

Tag all disconnected tubing and lines to ease reinstallation.

HIGH PRESSURE FILTER

Removal:

1. Disconnect high pressure differential switch from both sides of high pressure filter. Be careful not to damage differential switch, as these two connections are the only support for the switch.

2. Set differential switch aside being careful not to damage the electrical wire.

3. Disconnect hydraulic lines from filter. Retain "T" joints with filter assembly.

4. Remove two screws holding filter assembly to mounting bracket.

5. Remove filter assembly from unit.

GO TO NEXT PAGE

3-95
TM 1-4920-446-13 & P

3-74. Filter assemblies - Replace (Contd) 3-74

Disassembly:

1. Remove "T" fittings and reducers from input and output sides of defective filter.

2. Discard defective filter.

Assembly:

NOTE

Antiseize tape shall be applied to male threads prior to installation of fittings. Ensure

tape does not cover the first thread. All connections should be tightened as necessary to

preclude leakage of hydraulic fluid.

1. Use antiseize tape, MIL-T-27730, on all hydraulic connections.

2. Install reducers and "T" fittings into input and output sides of filter.

Installation:

1. Position filter and install on mounting bracket using two screws. Make sure that flow direction (arrow) is correct.

2. Install hydraulic lines on either side of "T" joints.

3. Position differential pressure switch and connect two hydraulic connections.

4. Pressurize system and check for leaks.

LOW PRESSURE FILTER

Removal:

1. Drain filter.

2. Disconnect all hydraulic tubing/lines from the filter. Retain three large and one small "T" fitting with filter.

3. Remove four bolts holding filter to chassis.

4. Remove filter.

GO TO NEXT PAGE

3-96
TM 1-4920-446-13 & P

3-74. Filter assemblies - Replace (Contd) 3-74

Disassembly:

1. Remove "T" fittings and reducers from input and output sides of filter.

2. Discard defective filter.

Assembly:

NOTE

Antiseize tape shall be applied to male threads prior to installation of fittings. Ensure

tape does not cover the first thread. All connections should be tightened as necessary

to reclude leakage of hydraulic fluid.

1. Use antiseize tape, MIL-T-27730, on all hydraulic connections.

2. Install reducers and "T" fittings into input and output sides of filter.

Installation:

1. Position filter and attach to chassis using four bolts.

2. Connect input and output hydraulic tubing/lines.

3. Pressurize system and check for leaks.

END OF TASK

3-97
TM 1-4920-446-13 & P

3-75. Hydraulic piping - Inspect 3-75

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67 - series

INSPECTION

Check all hydraulic lines, tubing, fittings, hose assemblies and manifold for damage, loose connections, cuts on

hoses, and leakage.

END OF TASK

3-98
TM 1-4920-446-13 & P

3-76. Hydraulic piping assembly - Repair (AVIM) 3-76

This task covers: Repair

INITIAL SETUP

Tools:

Tool Kit, Hydraulic, NSN 5180-00-323-4891

Shop Set, AVIM Hydraulic, NSN 4920-00-165-1454

Personnel Required:

MOS 68H

NOTE

Tag all disconnected tubing and lines to ease reinstallation.

REPAIR

1. Repair or replace all damaged or worn lines, tubing, fittings, hose assemblies, and manifold.

2. Tighten all loose connections.

END OF TASK

3-99
TM 1-4920-446-13 & P

3-77. Hydraulic piping assembly - Replace 3-77

This task covers: Removal and installation

INITIAL SETUP

Personnel Required:

MOS 67

Equipment Condition:

Para. 2-10 Test stand shutdown

Para. 3-18 Cabinet Assy Removed

General Safety Instructions:

Be sure all electrical power is removed from the unit before beginning any maintenance

operation.

To avoid personal injury, test stand must be shut down and all hydraulic pressure

relieved before beginning any maintenance operation.

NOTE

Tag all disconnected tubing and lines to ease reinstallation.

REMOVAL

Disconnect and remove hydraulic lines, tubing, fittings, hose assemblies, and manifold only to the extent necessary for

the repair or replacement of damaged or worn parts.

INSTALLATION

Install all hydraulic lines, tubing, fittings, hose assemblies, and manifold that have been removed for repair or replacement.

END OF TASK

3-100
TM 1-4920-446-13 & P

3-78. Hydraulic piping assembly - Test (AVIM) 3-78

This task covers: Testing

INITIAL SETUP

Personnel Required:

MOS 67

TESTING

Test piping assembly for leakage while operating test stand under full flow and pressure conditions. See Chapter 2, Operating Instructions.

END OF TASK

3-101
TM 1-4920-446-13 & P

3-79. Gauges - Inspect 3-79

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

1. Check gauges for physical damage.

2. Check all hose and tubing connections to back of gauges, tighten as necessary.

3. Check gauges for accuracy by comparing to aircraft gauges under test. See paragraph 3-89 for calibration

procedures.

GO TO NEXT PAGE

3-102
TM 1-4920-446-13 & P

3-79. Gauges - Inspect 3-79

END OF TASK

3-103
TM 1-4920-446-13 & P

3-80. Pressure Gauges - Replace (AVIM) 3-80

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Instruments, NSN 5180-00-323-4913

Shop Set, AVIM, Electrical-Instrument, NSN 4920-00-165-1453

Personnel Required:

MOS 68

Equipment Condition:

Para. 3-18 Cabinet assembly removed

General Safety Instructions:

Be sure that all electrical power is removed from the unit before beginning any maintenance operation.

To avoid personal injury test stand must be shut down and all hydraulic pressure relieved

before beginning any maintenance operation.

NOTE

Tag all disconnected tubing and lines to ease reinstallation.

Removal - Low Pressure and High Pressure Gauges:

1. Loosen the knurled bolts and remove covers from both gauges.

2. Disconnect the flexible hoses in back of the panel.

3. Remove three screws from each gauge. Pull gauges out through the front of the panel.

4. To calibrate gauges refer to para 3-89.

GO TO NEXT PAGE

3-104
TM 1-4920-446-13 & P

3-80 Pressure Gauges - Replace (AVIM) (Contd) 3-80

Installation - Low Pressure and High Pressure Gauges:

1. Position gauges by inserting through front of the panel.

2. Attach gauges using three screws for each gauge.

3. Connect the flexible hoses in the back of the panel.

4. Install front covers using knurled bolts.

END OF TASK

3-105
TM 1-4920-446-13 & P

3-81. Summary of instrument panel maintenance. Maintenance tasks are listed below with information necessary to

locate detailed procedures.

Task

Number

Task Refer to

Paragraph

1

2

3

4

5

6

7

8

Inspect control knobs.

Perform task number 1, then task 2 as

necessary.

Replace control knobs.

Inspect panel assembly.

Perform task number 3, then task 4

and 5 as necessary.

Repair panel assembly.

Replace panel assembly.

Inspect instruments.

Perform task number 6, then task 7

and 8 as necessary.

Replace instruments.

Calibrate instruments.

3-82

3-83

3-84

3-85

3-86

3-87

3-88

3-89

3-106
TM 1-4920-446-13 & P

3-82. Control knobs - Inspect 3-82

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

1. Check for damaged, loose, or missing control knobs.

2. Tighten loose knobs.

END OF TASK

3-107
TM 1-4920-446-13 & P

3-83. Control knobs - Replace 3-83

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Instrument, NSN 5180-00-323-4913

Personnel Required:

MOS 67

REMOVAL

1. Remove attaching hardware securing damaged knob.

2. Remove any damaged control knob.

INSTALLATION

Replace any damaged or missing control knobs. Align properly and tighten as necessary.

END OF TASK

3-108
TM 1-4920-446-13 & P

3-84. Panel assembly - Inspection 3-84

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

Inspect panel for damage, loose, or missing hardware and illegible identification plates.

END OF TASK

3-109
TM 1-4920-446-13 & P

3-85. Panel assembly - Repair (AVIM) 3-85

This task covers: Repair

INITIAL SETUP

Tools:

Tool Kit, Instrument, NSN 5180-00-323-4913

Shop Set, AVIM, Hydraulic, NSN 4920-00-165-1454

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-86 Panel assembly removed

REPAIR

1. Repair dents and straighten bent edges.

2. Repaint if needed.

3. Install new identification plates as needed.

END OF TASK

3-110
TM 1-4920-446-13 & P

3-86. Panel assembly - Replace 3-86

This task covers: Removal and installation

INITIAL SETUP

Personnel Required:

MOS 67 2 personnel required

Equipment Condition:

Para. 3-18 Cabinet assembly removed

General Safety Instructions:

Be sure that all electrical power is removed from the unit before beginning any maintenance operation.

To avoid personal injury, test stand must be shut down and all hydraulic pressure

relieved before beginning any maintenance operation.

Removal:

1. Disconnect temperature gauge line at the low pressure manifold and remove all routing clamps.

2. Disconnect all electrical wiring from the back of instruments and remove all routing clamps, securing the wiring to the

back of the instrument panel.

NOTE

Tag all disconnected wiring to ease reinstallation.

3. Disconnect all fluid lines, tubing, and flexible hoses from the back of the panel.

4. Remove volume control handle.

5. Remove twelve bolts mounting the panel to the chassis.

6. Use two people, lift the panel assembly from the test stand.

GO TO NEXT PAGE

3-111
TM 1-4920-446-13 & P

3-86. Panel assembly - Replace (Contd) 3-86

Installation:

1. Use two people, position panel assembly into test stand and fasten with twelve mounting bolts.

2. Install volume control handle.

3. Connect all fluid lines, tubing, and flexible hoses to the back of the panel.

4. Connect all electrical wiring to the back of the instruments and secure wires to the chassis using routing clamps.

5. Connect temperature gauge line to the low pressure manifold and secure line to the chassis using routing clamps.

6. Observe test stand during normal operation to verify proper operation of the gauges and instruments and that there

are no hydraulic leaks.

END OF TASK

3-112
TM 1-4920-446-13 & P

3-87. Instruments - Inspection 3-87

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

INSPECTION

1. Check instruments for damage.

2. Check tubing and hose connections to instruments for tightness and leaks.

3. Check instruments for accuracy, see paragraph 3-89 for calibration procedures.

END OF TASK

3-113
TM 1-4920-446-13 & P

3-88. Instruments - Replace 3-88

This task covers: Removal and installation

INITIAL SETUP

Tools:

Tool Kit, Instrument, NSN 5180-00-323-4913

Shop Set, AVIM, Electrical-Instrument, NSN 4920-00-165-1453

Personnel Required:

MOS 68

Equipment Condition:

Para. 3-18 Cabinet assembly removed

Test stand shut down and pressure relieved

NOTE

Tag all disconnected wiring to ease reinstallation.

Removal: Fluid temperature gauge (4)

1. Disconnect line at the low pressure filter manifold (under the low pressure filter), then remove all routing clamps.

2. Remove mounting hardware and pull gauge out through front of panel.

Removal: Fuel gauge (5)

1. Disconnect wires at back of gauge.

2. Remove mounting hardware and pull gauge out through front of panel.

Removal: Hourmeter (1)

1. Disconnect wiring at back of meter.

2. Remove mounting hardware and pull out through front of panel.

Removal: Flow indicator (17)

1. Remove wire at back of indicator.

2. Remove mounting hardware and pull out through front of panel.

GO TO NEXT PAGE

3-114
TM 1-4920-446-13 & P

3-88 Instruments - Replace (AVIM) (Contd) 3-88

GO TO NEXT PAGE

3-115
TM 1-4920-446-13 & P

3-88 Instruments - Replace (AVIM) (Contd) 3-88

Removal: Low pressure and high pressure indicator lamps (18) and (19)

1. Remove three electrical wires.

2. Remove bezel.

3. Remove attaching nut.

4. Remove indicator lamp from rear of panel.

Installation: Fluid temperature gauge (4)

1. Install gauge through front of panel and attach using mounting hardware.

2. Connect line at low pressure filter manifold (under the low pressure filter), then secure to chassis using routine

clamps.

Installation: Fuel gauge (5)

1. Insert gauge through front of panel and attach using mounting hardware.

2. Connect wires to gauge.

Installation: Hourmeter (1)

1. Insert meter through front of panel and attach using mounting hardware.

2. Connect wiring at back of meter.

Installation: Flowmeter (17)

1. Insert indicator through front of panel and attach using mounting hardware.

2. Connect wire at back of indicator.

Installation: Low pressure and high pressure indicator lamps (18) and (19)

1. Install indicator lamp from rear of panel.

2. Install attaching nut.

3. Install bezel.

4. Install three electrical wires.

END OF TASK

3-116
TM 1-4920-446-13 & P

3-89. Instruments - Calibration (USATSG) 3-89

This task covers: Calibration

INITIAL SETUP

Tools and Equipment

0-6000 PSI calibrated standard gauge

0-300 PSI calibrated standard gauge

Standard thermometer (to 2000F)

Personnel Required:

MOS 35H

Equipment Condition:

Test stand doors open, not operating, and fluid pressure relieved.

NOTE

Calibration will be performed by the U.S. Army, Measurement and Diagnostic Equipment Support Group.

CALIBRATION - HIGH PRESSURE GAUGE

Method I (Primary)

1. Connect a suitable 0-6000 psi calibrated standard gauge to the HP gauge test port on the panel (20).

2. Operate system under normal condition. See Chapter 2 for operating instructions.

3. Compare the test stand gauge readings with the readings on the calibrated standard gauge at various points over the

scale.

4. The gauge readings must agree within one percent ± 1/2 percent or less of full scale.

5. If the test stand gauge readings are inaccurate or erratic, replace the gauge.

GO TO NEXT PAGE

3-117
TM 1-4920-446-13 & P

3-89 Instruments - Calibration (USATSG) (Contd) 3-89

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3-89 Instruments - Calibration (USATSG) (Contd) 3-89

CALIBRATION - HIGH PRESSURE GAUGE (Contd)

Method II (Alternate)

1. Isolate the gauge from the hydraulic system by closing the HP GAUGE SHUT-OFF valve.

2. Connect a 0-6000 psi calibrated test gauge and hydraulic pressurizing equipment to the HP GAUGE TEST port.

3. Operate the pressurizing equipment and compare the two gauge readings over various points on the scale.

4. The test stand gauge must be replaced if the readings do not conform to the limitations stated in step 4 of Method I

above.

CALIBRATION - LOW PRESSURE GAUGE (21)

1. Place selector valve in LP GAUGE CALIBRATION position.

2. Connect a 0-300 psi test gauge and hydraulic pressurizing equipment to the LP GAUGE TEST port.

3. Operate the pressurizing equipment and compare the two gauge readings at various points on the scale.

4. The test stand gauge must be replaced if its readings do not agree with the standard gauge within one percent 24±

1/2 percent of full scale.

CALIBRATION - FLUID TEMPERATURE GAUGE

1. The fluid temperature gauge is equipped with a five foot capillary tube and sensing bulb. Remove the sensing bulb

from the thermostat well.

2. Immerse the sensing tube into a water container with a controlled temperature.

3. Check the water temperature with a standard thermometer and compare readings with test stand gauge.

4. Replace the gauge if the temperature readings are inaccurate or erratic.

END OF TASK

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3-90. Frame assembly 3-90

This task covers: Inspection

INITIAL SETUP

Personnel Required:

MOS 67

Equipment Condition:

Para. 3-18 Cabinet assembly removed

Test stand shut down and pressure relieved.

INSPECTION

1. Inspect frame assembly for cleanliness, missing paint, and labels.

2. Inspect frame assembly for dents, corrosion, rust, and broken welds.

3. Inspect tiedowns and cabinet hardware for presence, cleanliness and material condition.

4. Inspect hydraulic couplings for damage, cleanliness, corrosion, and presence of dust caps.

5. Report any discrepancies.

END OF TASK

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SECTION VI

PREPARATION FOR STORAGE OR SHIPMENT

3-91. For detailed instructions for the preparation for storage or shipment, refer to TM 55-1500-204-25/1 General Aircraft

Maintenance Manual and TM 743-200-1, Storage and Material Handling.

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APPENDIX A

REFERENCES

A-1. Dictionaries of Terms and Abbreviations

AR 310-25 Dictionary of United States Army Terms

AR 310-50 Authorized Abbreviations and Brevity Codes

A-2. Publication Index

DA PAM 25-30 Consolidated Index of Army Publications and Blank

Forms

A-3. Logistics and Storage

TM 743-200-1 Storage and Materials Handling

A-4. Maintenance of Supplies and Equipment

AR 750-1 Army Material Maintenance Policies

DA PAM 738-751 Functional Users Manual for the Army Maintenance

Management System - Aviation (TAMMS-A)

TB 43-180 Calibration and Repair Requirements for the Maintenance of Army Material.

TM 43-0139 Painting Instructions for Army Material

FM 1-509 Fundamentals of Aircraft Pneudraulics

FM 1-563 Fundamentals of Airframe Maintenance

FM 1-511 Army Aircraft Quality Control and Technical Inspection

FM 55-411 Quality Assurance, Quality Control

TM 55-1500-204-25/1 General Aircraft Maintenance Manual

TM 9-2610-200-24 Organizational, Direct Support & General Support Care,

Maintenance & Repair of Pneumatic Tires and Inner

Tubes

A-5. Other Publications

TM 750-244-1-4 Procedures for the Destruction of Aviation Ground

Support Equipment (FSC 4920) to Prevent Enemy Use

AR 420-90 Fire Prevention and Protection

AR 55-38 Reporting of Transportation Discrepancies in Shipment

AR 700-58 Packaging Improvement Report

DA PAM 310-13 Posting and Filing Publications

FM 21-11 First Aid for Soldiers

A-1/(A-2 blank)
TM 1-4920-446-13 & P

APPENDIX B

MAINTENANCE ALLOCATION CHART

SECTION I. INTRODUCTION

B-1. General.

a. This section provides a general explanation of all maintenance and repair functions authorized at various

maintenance categories.

b. The Maintenance Allocation Chart (MAC) in Section II designates overall authority and responsibility for the

performance of maintenance functions on the identified end item or component. The application of the maintenance

function to the end item or component will be consistent with the capacities and capabilities of the designated maintenance categories.

c. Section III lists the tools and test equipment required for each maintenance function as referenced from Section II.

d. Section IV contains supplemental instructions and explanatory notes for a particular maintenance function.

B-2. Maintenance functions. Maintenance functions will be limited to and defined as follows:

a. Inspect. To determine the serviceability of an item by comparing its physical and mechanical characteristics

with established standards through examination (e.g., by sight, sound, or feel).

b. Service. Operations required periodically to keep an item in proper operating condition i.e., to clean, to preserve, to paint, or to replenish lubricants or gases.

c. Replace. To remove an unserviceable item and install a serviceable counterpart in its place. "Replace" is

authorized by the MAC and is shown as the 3rd position code of the SM&R code.

d. Repair. The application of maintenance services, including fault location/troubleshooting, removal/installation, and disassembly/assembly procedures, and maintenance actions to identify troubles and restore

serviceability to an item by correcting specific damage, fault, malfunction, or failure in a part, subassembly, or end item.

B-3. Explanation of Columns in the MAC, Section II.

a. Column 1, Group Number. Column 1 lists functional group code numbers, the purpose of which is to identify

maintenance of significant components, assemblies, and subassemblies, with the next higher assembly. End item group

number is "00".

b. Column 2, Component/Assembly. Column 2 contains the names of components, assemblies, and subassemblies for which maintenance is authorized.

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TM 1-4920-446-13& P

c. Column 3, Maintenance Function. Column 3 lists functions to be performed on the item listed in: Column 2.

(For detailed explanation of these functions, see paragraph B-2).

d. Column 4, Maintenance Category. Column 4 specifies, by the listing of a work time figure in the appropriate

subcolumn(s), the category of maintenance authorized to perform the function listed in Column 3. This figure represents

the active time required to perform that maintenance function at the indicated category of maintenance. The work time

figure represents the average time required to restore and item (assembly, subassembly, component, or end item) to a

serviceable condition under typical field operating conditions.

e. Column 5, Tools and Equipment. Column 5 specifies, by code, those common tool sets (not individual tools)

and special tools, TMDE, and support equipment required to perform the designated function.

f. Column 6, Remarks. This column shall, when applicable, contain a letter code, in alphabetical order, which

shall be keyed to the remarks contained in Section

B-4. Explanation of Columns in Tools and Test Equipment Requirements, Section III.

a. Column 1, Reference Code. The tool and test equipment reference code correlates with a code in the MAC,

Section II, Column 5.

b. Column 2, Maintenance Category. The lowest category of maintenance authorized to use the tool The "O"

code corresponds to Aviation Unit Maintenance (AVUM), and the "F" code corresponds to Aviation Intermediate Maintenance (AVIM).

c. Column 3, Nomenclature. Name or identification of the tool.

d. Column 4, National Stock Number. The National Stock Number of the tool.

B-5. Explanation of Columns in Remarks, Section IV.

a. Column 1, Reference Code. The code recorded in Column 6, Section II.

b. Column 2, Remarks. This column lists information pertinent to the maintenance function being performed as

indicated in the MAC, Section II.

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TM 1-4920-446-13 & P

SECTION II. MAINTENANCE ALLOCATION CHART FOR

HYDRAULIC TEST STRAND

(1) (2) (3) (4) (5) (6)

Maintenance Tools

Group Component/ Maintenance Category and

Number Assembly Function AVUM AVIM Depot Eqpt Remarks

00 Test Stand

Hydraulic, Sys,

Elect. Motor

Driven.

D-6A

01 Cabinet Assy

0101 Doors Inspect .3

Repair .8 114-117

Replace .5 102

0102 Catches Inspect .3

Service .3

Replace .8 102 E,F

0103 Panels Inspect .3

(Access) Service .3

Repair .5 114

Replace .3 102

02 Running Gear

0201 Axle & Steer- Inspect .5

ing Assy Service .5 101 E,F

Repair 1.0 117 G

Replace 1.0 102

0202 Tie Rods and Inspect .3

Ends Service .5 101

Replace 1.0 102 G

0203 Springs Inspect .3 101

Service .3

Replace 1.0 102

0204 Wheels Inspect .3

Service .3

Replace .5 101-102

0205 Hub and Bear Replace .8 101-102

ings Inspect .8

Service 1.0 101-102 E,F

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TM 1-4920-446-13 & P

SECTION II. MAINTENANCE ALLOCATION CHART FOR

HYDRAULIC TEST STRAND (Contd)

(1) (2) (3) (4) (5) (6)

Maintenance Tools

Group Component/ Maintenance Category and

Number Assembly Function AVUM AVIM Depot Eqpt Remarks

0206 Brake Assy Replace 1.0 115

Inspect .5

Service. 5

Adjust .5

0207 Tires and Replace 5 102 G

Tubes Inspect 3

Service .3

Repair 1.0 115 G

0208 Tow Bar Inspect .3

Service .3

Repair 1.0 102-117

Replace .3

03 Electrical

System

0301 Electric Motor Inspect .3

Main Hydr. Replace 1.0 102

Pump Repair 2.0

0302 Switches and Inspect .3

Circuit Service .3

Breakers Replace .5 106

0303 Wiring &

Cables Inspect .3

Service .3

Repair .8 106-109

Replace .8 106-109

0304 Fuses Inspect .3

Replace .3

04 Hydraulic

System

0401 Pump Inspect .3

Replace 1.0 104-110

Repair 2.0

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TM 1-4920-446-13 & P

SECTION II. MAINTENANCE ALLOCATION CHART FOR

HYDRAULIC TEST STRAND (Contd)

(1) (2) (3) (4) (5) (6)

Maintenance Tools

Group Component/ Maintenance Category and

Number Assembly Function AVUM AVIM Depot Eqpt Remarks

0402 Compensator Inspect .3

Control Service .3

Replace 1.0 104

0403 Volume Inspect .3

Control Service .3

Replace 1.0 104

0404 Valves, Inspect .3

Relief, Check Repair 1.0

Bleed, 4-Way, Replace 1.0

By-Pass

0405 Fluid Inspect .3

Reservoir Repair .8 104-110

Replace 1.0

0406 Filter Inspect .3

Assemblies Service .3

Replace .5 102 A

Test .3 B

0407 Lines, Tubing Inspect .3

Fittings, Repair 1.0 104-110

Hose Assy, & Replace .8 104

Manifold Test .5 B

0408 Pressure Inspect .3

Gauges Replace .8 105-109

05 Instrument

Panel

0501 Control Knobs Inspect .3

Replace .5 105

0502 Panel Assy Inspect .3

Repair 1.0 105-109

Replace .8

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TM 1-4920-446-13 & P

SECTION II. MAINTENANCE ALLOCATION CHART FOR

HYDRAULIC TEST STRAND (Contd)

(1) (2) (3) (4) (5) (6)

Maintenance Tools

Group Component/ Maintenance Category and

Number Assembly Function AVUM AVIM Depot Eqpt Remarks

0503 Instruments Inspect .3

Replace .3 C,D

Calibrate* .5

06 Frame Assy Inspect .3

:Repair 3.0

* Calibration to be performed by the U .S. Army, Test, Measurement and Diagnostic c Equipment,

Support Group.

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TM 1-4920-446-13 & P

SECTION III. TOOLS AND TEST EQUIPMENT

(1) (2) (3) (4) (5)

Ref. Maint. National Tool

No. Cat. Nomenclature Stock Number Number

101 0 Tool Set, AVUM 4920-00-567-0476 SC4920-99-CL-A92

Set No. 2

102 0 Tool Kit, Aircraft 5180-00-323-4692 SC5180-99-CL-A01

. Mechanics General

104 0 Tool Kit, Hydraulic 5180-00-323-4891 SC5180-97-CL-A03

105 0 Tool Kit, Instrument 5180-00-323-4913 SC5180-99-CL-A05

106 0 Tool Kit, Electrical 5180-00-323-4915 SC5180-99-CL-A06

109 F Shop Set, AVIM Elec- 4920-00-165-1453 SC4920-99-CL-A80

trical/Instrument

110 F Shop Set, AVIM 4920-00-165-1454 ~SC4920-99-CL-A81

Hydraulic

114 F Shop Set, AVIM 4920-00-166-5505 SC4920-99-CL-A85

Sheet Metal

115 F Shop Set, AVIM 4920-00-472-4183 SC4920-99-CL-A86

Tool Crib

117 F Shop Set, AVIM 4920-00-163-5093 SC4920-99-CL-A88

welding

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TM 1-4920-446-13 & P

SECTION IV. REMARKS

TEST STAND HYDRAULIC, D-6A

Ref. Code Remarks

A Clean and/or replace filter elements, high and low pressure

filters

B Operational test for leaks

C Calibrate LAW existing procedures, TB 43-180

D Operational test can be performed with component installed on

end item

E,F Lubricate and clean

G Use available motor pool tools

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TM 1-4920-446-13 & P

APPENDIX C

REPAIR PARTS AND SPECIAL TOOLS LIST

SECTION L INTRODUCTION

C-1. Scope. This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement, and

diagnostic equipment (TMDE); and other special support equipment required for performance of Aviation Unit and Aviation Intermediate maintenance on the Type D-6A Hydraulic Test Stand. It authorizes the requisitioning, issue, and disposition of spares, repair parts, and -special tools as indicated by the Source, Maintenance, and Recoverability (SM&R)

codes.

C-2. General. The RPSTL is further divided into the following sections:

SECTION II. REPAIR PARTS LIST

A list of spares and repair parts authorized by this RPSTL for use in the performance of maintenance. The list also

includes parts which must be removed for replacement of the authorized parts. Parts lists are composed of functional

groups in ascending alphanumeric sequence, with the parts in each group listed in ascending figure and item number

sequence. Bulk materials are listed in item name sequence. Repair parts kits are listed separately in their own functional group within Section II. Repair parts for repairable special tools are also listed in this section. Items listed are

shown on the associate illustration(s)/figure(s).

SECTION III. SPECIAL TOOLS LIST

There are no special tools, special TMDE, or other special support equipment required the performance of maintenance on the equipment in this manual.

SECTION IV. NATIONAL STOCK NUMBER AND PART NUMBER INDEXES

A list, in National Item Identification Number (NIIN) sequence, of all National Stock Number (NSN) items appearing

in the RPSTL, followed by a list in alphanumeric sequence of all part numbers appearing in the RPSTL. NSN and part

numbers are cross-referenced to each illustration figure and item number appearance. The Figure Number index lists

the item number alphanumeric sequence and crossreferences NSN, GAGE code, and part number.

C-3. Explanation of Columns (Section II and III).

a. Item No. (Column (1). Indicates the number used to identify items called out in the illustration.

b. SM&R Code (Column (2). The Source, Maintenance, and Recoverability (SM&R) code is a 5-position code

containing supply/requisitioning information, maintenance category authorization criteria, and disposition instruction, as

shown in the following breakout:

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TM 1-4920-446-13 & P

Source

Code

Maintenance

Code

Recoverability

Code

XX 1

st two XX XX 5th

positions position

How you get an

item.

3d position 4th position

Who can install, Who can do

replace or use complete repair

the item. (see note) on

the item.

Who determines

disposition

action on an

unserviceable item.

* Complete Repair: Maintenance capacity, capability, and authority - to perform all corrective maintenance tasks of the

"Repair" function in a use/user environment in order to restore serviceability to a failed item.

(1) Source Code. The source code tells you how to get an item needed for maintenance, repair, or overhaul of

an end item/equipment. Explanations of source codes follows:

Code Explanation

PA

PB

PC** Stocked items; use the applicable NSN- to request/requisition items

PD with these source codes. They are authorized to the category indiPEl cased by the code entered in the 3rd position of the SM&R code.

PF 

PG **NOTE: Items coded PC are subject to deterioration.

KD Items with these codes are not to be requested/requisitionedKF individually. They are part of a kit which is authorized to the

KB maintenance category indicated in the 3rd position of the SM&R code.

The complete kit must be requisitioned and applied.

Code Explanation

.

MO-(Made at org/ Items with these codes are not to be requested requisiAVUM Level) tioned individually. T hey must be made from bulk mate

MF-(Made at DS/ rial which is identified by the part number in the DESAVUM Level) CRIPTION AND USEABLE ON CODE (UOG) column and

MH-(Made at GS listed in the Bulk Material group of the repair parts

Level) list in this RPSTL. If the item is authorized to you by

ML-(Made at Spe- 3rd position code of the SM&R code, but the source code

cialized Repair indicates it is made at a higher level, order the item

Act [SRA] from the higher level of maintenance.

MD-(Made at Depot)

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TM 1-4920-446-13 & P

Code Explanation

AO-(Assembled by Items with these codes are not to be requested/requisi

org/AVUM Level) tioned individually. The parts that make

AF-(Assembled by up the assembled item must be requisitioned or fabricated and

DS/AVIM Level) assembled at the level of maintenance indicated

AH-(Assembled by by the source code. If the 3rd position code of the SM&R code

GS Category) authorizes you to replace the item, but the source code indicates the

AL- Assembled by SRA) item is assembled at a higher level, order the item from the higher

AD-(Assembled by level of maintenance

Depot)

XA- Do not requisition an "XA"-coded item. Order its next higher assembly.

(Refer to the NOTE below.)

XB- If an "XB" item is not available from salvage, order it using the CAGE code

and part number given.

XC- Installation drawing, diagram, instruction sheet, field service drawing, that is

identified by manufacturer's part number.

XD- Item is not stocked. Order an "XD"-coded item through normal supply

channels using the CAGE code and part number given, if no NSN is

available.

NOTE: Cannibalization or controlled exchange, when authorized, may be used as a source of supply for items with the

above source codes, except for those source coded "XA" or restricted aircraft support items (refer to AR 750-1).

(2) Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to USE and REPAIR

support items. The maintenance codes are entered in the third and fourth positions of the SM&R Code as follows:

(a) The maintenance code entered in the third position tells you the lowest maintenance level authorized to

remove, replace, and use an item. The maintenance codes are entered in the third position will indicate authorization to

one of the following levels of maintenance.

Code Application/Explanation

C -Crew or operator maintenance done within organizational or aviation unit maintenance.

O -Organizational or aviation unit category can remove, replace, and use the item.

F -Direct support or aviation intermediate level can remove, replace, and use the item.

H -General support level can remove, replace, and use the item.

L -Specialized repair activity can remove, replace, and use the item.

D -Depot level can remove, replace, and use the item.

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TM 1-4920-446-13 & P

(b) The maintenance code entered in the fourth position tells whether or not the item is to be repaired and

identifies the lowest maintenance level with the capability to do complete repair (i.e., perform all authorized repair functions). NOTE: Some limited repair may be done on the item at a lower level of maintenance, if authorized by the Maintenance Allocation Chart (MAG) ~ and SM&R codes. This position will contain one of the following maintenance codes.

Code Application/Explanation

O -Organizational or (aviation unit) is the lowest level that can do complete repair of the item.

F -Direct support or aviation intermediate is the lowest level that can do complete repair of the item.

H -General support is the lowest level that can do complete repair of the item.

L -Specialized repair activity (designate the specialized repair activity) is the lowest level that can do complete repair of the item.

D -Depot is the lowest level that can do complete repair of the item.

Z -Nonrepairable. No repair is authorized.

B -No repair is authorized. No parts or special tools are authorized for the maintenance of a "B" coded

item. However, the item may be reconditioned by adjusting, lubricating, etc., at the user level.

(3) Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action on unserviceable items. The recoverability code is entered in the fifth position of the SM&R Code as follows:

Recoverability

Code Application/ Explanation

Z -Nonrepairable item. When unserviceable, condemn and dispose of the item at the level of maintenance

shown in 3rd position of SM&R Code.

O -Repairable item. When not economically repairable, condemn and dispose of the item at organizational

or aviation unit level.

F -Repairable item. When not economically repairable, condemn and dispose of the item at the direct support or aviation intermediate level.

H -Repairable item. When not economically repairable, condemn and dispose of the item at the general

support level.

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TM 1-4920-446-13&P

D -Repairable item. When beyond lower level repair capability, return to depot. Condemnation and disposal

of item not authorized below depot level.

L -Repairable item. Condemnation and disposal not authorized below specialized repair activity (SRA).

A -Item requires special handling or condemnation procedures because of specific reasons (e.g., precious

metal content, high dollar value, critical material, or hazardous material). Refer to appropriate manuals/directives for specific instructions.

c. CAGE Code (Column (3). The Commercial and Government Entity (CAGE) Code is a 5-digit numeric or

alphanumeric code which is used to identify the manufacturer, distributor, or government agency, etc., that supplies the

item. The codes are contained in Cataloging Handbook H4/H8.

d. Part Number (Column (4). Indicates the primary number used by the manufacturer (individual, company,

firm, corporation, or government activity), which controls the design and characteristics of the item by means of its engineering drawings, specification standards, and inspection requirements to identify an item or range of items.

NOTE: When you use a NSN to requisition an item, the item you receive may have a different part number from the part

ordered.

e. Description and Usable On Code (UOC) (Column (5). This column includes the following information:

(1) The federal item name and, when required, a minimum description to identify the item.

(2) The physical security classification of the item is indicated by the parenthetical entry (insert applicable physical security classification abbreviation, e.g., Phy Sec C1 (C) -Confidential, Phy Sec C1 (S) - Secret, Phy Sec C1 (T) Top

Secret).

(3) Items that are included in kits and sets are listed below the name of the kit or set.

(4) Spare/repair parts that make up an assembled item are listed immediately following the assembled item line

entry.

(5) Part numbers for bulk materials are referenced in this column in the line item entry for the item to be manufactured/fabricated.

(6) When the item is not used with all serial numbers of the same model, the effective serial numbers are shown

on the last line(s) of the description (before UOC).

(7) The usable on code, when applicable (see paragraph 5, Special Information).

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(8) In the Special Tools List section, the basis of issue (BOI) appears as the last line(s) in the entry for each special tool, special TMDE, and other special support equipment. When density of equipments supported exceeds density

spread indicated in the basis of issue, the total authorization is increased proportionately.

(9) The statement "END OF FIGURE" appears just below the last item description in Column 5 for a given figure

in both Section II and Section III.

f. QTY (Column (6). The QTY (quantity per figure column) indicates the quantity of the item used in the

breakout shown on the illustration figure, which is prepared for a functional group, subfunctional group, or an assembly. A

"V" appearing in this column in lieu of a quantity indicates that the quantity is variable and the quantity may vary from

application to application.

C-4. Explanation of Columns (Section IV).

a. National Stock Number (NSN) Index.

(1) Stock Number Column. This column lists t he NSN by National Item Identification Number (NIIN) sequence.

The NIIN consists of the last nine digits

NSN

of the NSN (i. e.5305-01-674-1467.= When using this column to locate an item,

NIIN

ignore the first 4 digits of the NSN. However, the complete NSN should be used when ordering items by stock number.

(2) Figure Column. This column lists the number of the figure where the item is identified/located. The figures

are in numerical order in Section II and Section III.

(3) Item Column. The item number identifies the item associated with the figure listed in the adjacent FIGURE

column. This item is also identified by the NSN listed on the same line.

b. Part Number Index. Part numbers in this index are listed by part number in ascending alphanumeric sequence (i.e., vertical arrangements of letter and number combination which places the first letter or digit of each group in

order ~ through Z. followed by the numbers 0 through 9 and each following letter or digit in like order).

(1) CAGE Code Column. The Commercial and Government Entity (CAGE) Code is a 5-digit numeric or alphanumeric code used to identify the manufacturer, distributor, or government agency, etc., that supplies the item.

(2) Part Number Column. Indicates the primary number used by the manufacturer (individual, firm, corporation, or government activity), which controls the design and characteristics of the item by means of its engineering drawings, specifications standards, and inspection requirements to identify an item or range of terms.

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(3) Stock Number Column. This column lists the NSN for the associated part number and manufacturer identified in the Part Number and CAGE Code Columns to the left.

(4) - FIGURE Column. This column lists the number of the figure where the item is identified/located in Section

II and III.

(5) Item Column. The item is that number assigned to the items as it appears in the figure referenced in the

adjacent figure number column.

c. Figure and Item Number Index. Not applicable.

C-5. Special Information. Use the following subparagraphs as applicable:

a. Usable On Code. The usable on code appears in the lower left corner of the Description column heading.

Usable on codes are shown as "UOC:" in the description column (justified left) on the first line applicable item description/nomenclature. Uncoded items are applicable to all models. Identification of the usable on codes used in the RPSTL

are:

Code Used On

Not Applicable

b. Fabrication Instructions. Bulk materials required to manufacture items are listed in the Bulk Material

Functional Group of this RPSTL. Part numbers for bulk materials are also referenced in the description column of the line

entry for the item to be manufactured/fabricated. Detailed fabrication instructions for items source codes to be manufactured or fabricated are not applicable.

c. Assembly Instructions. Detailed assembly instructions for items source coded to be assembled from component spare/repair parts are not applicable. Items that make up the assembly are listed immediately following the assembly item entry or reference is made to an applicable figure.

d. Kits. Line item entries for repair parts kits appear in a group in Section II (Not Applicable).

e. Index Numbers. Items which have the word BULK in the figure column will have an index number shown

in the item number column. This index number is a cross-reference between the National Stock Number/Part Number

Index and the bulk material list in Section II.

f. Associated Publications. Not applicable.

g. Illustrated - Listing. Not applicable.

C-6. How to Locate Repair Parts.

a. When national stock number or part number is not known.

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TM 1-4920-446-13 & P

(1) First. Using the table of contents, determine the assembly group or subassembly group to which the item

belongs. This is necessary since f gores are prepared for assembly groups and subassembly groups, and listings are divided into the same groups.

(2) Second. Find the figure covering the assembly group or subassembly group to which the item belongs.

(3) Third. Identify the item on the figure and note the item number.

(4) Fourth. Refer to the Repair Parts List for the figure to find the part number for the item number noted on the

figure.

(5) Fifth. Refer to the Part Number Index to find the NSN, if assigned.

b. When national stock number or part number is known:

(1) First. Using the Index of National Stock Numbers and Part Numbers find the pertinent national stock number

or part number. The NSN index is- in National Item Identification Number (NIIN) sequence (see C-4.a(1)). The part numbers in the Part Number index are listed in ascending alphanumeric sequence (see C-4.b). Both indexes cross-reference

you to the illustration figure and item number of the item you are looking for.

(2) Second. After finding the figure and item number, verify that the item is the one you're looking for, then locate the item number in the repair parts list for the figure.

C-7. Abbreviations. All are applicable to RPSTL and are listed in MIL-STD-12.

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Figure C-1 Cabinet Assembly, D-6A

C-9
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 01 CABINET ASSY

GROUP 0101 DOORS

GROUP 0103 PANELS, ACCES

FIGURE C-1, CABINET ASSY

AFFFF 22680 48255-01 CABINET ASSY....................................

1 AFFFF 22680 58329-01 HOUSING WELDMENT........................ 1

2 XDFZZ 22680 58330-01 DOOR TOP PANEL.............................. 1

3 XDFZZ 96906 MS35207-263 SCREW, MACHINE PNH ..................... 47

4 PAFZZ 96906 MS25281-F4 CLAMP, LOOP, PLASTIC..................... 2

5 PAFZZ 96906 MS35338-43 WASHER, LO CK`................................ 47

6 PAFZZ 96906 MS35650-302 NUT, PLAIN HEX.................................. 47

7 XDFZZ 03614 3781 CLIP, FUSE.......................................... 4

8 XDFZZ 22680 89277-01 HOLDER-DOOR .................................. 1

9 PAFZZ 96906 MS24665-132 PIN, COTTER....................................... 7

10 XDFZZ 73020 AD42ABS RIVET, POP ......................................... 4

11 XDFZZ 22680 58334-01 DOOR, RESERVOIR FILL.................... 1

12 XDFZZ 22680 89275-01 HOLDER-DOOR .................................. 1

13 XDFZZ 22680 58331-01 DOOR, LEFT SIDE............................... 1

14 XDFZZ 22680 58332-01 DOOR, RIGHT SIDE PANEL ................ 1

15 XDFZZ 22680 58333-01 DOOR, MOTOR COMPART.................

MENT ................................................... 2

16 XDFZZ 22680 58335-01 DOOR, REAR....................................... 1

17 XDFZZ 22680 89266-01 SUPPORT-DOOR BRACKET............... 1

18 PAFZZ 96906 MS35206-245 SCREW, MACHINE PNH ..................... 2

19 PAFZZ 96906 MS35338-42 WASHER, LOCK.................................. 2

20 PAFZZ 96906 MS35649-282 NUT, PLAIN HEX.................................. 2

21 XDFZZ 22680 89276-01 HOLDER-DOOR .................................. 5

22 XDFZZ 98003 SC-B-83314-2CE CATCH ................................................. 1

23 XDFZZ 22680 452026-01 NAMEPLATE, UNIT.............................. 1

24 XDFZZ 73020 AD43ABS RIVET, POP ......................................... 8

25 XDFZZ 3M181 44-1-2-0 LATCH, ADJ .........................................

END OF FIGURE

6

C-1-1

C-10
TM 1-4920-446-13 & P

Figure C-2 Internal Components Assembly, D-6A (Sheet 1 of 3)

C-11
TM 1-4920-446-13 & P

Figure C-2 Internal Components Assembly, D-6A (Sheet 2 of 3)

C-12
TM 1-4920-446-13 & P

Figure C-2 Internal Components Assembly, D-6A (Sheet 3 of 3)

C-13
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 00 HYD TEST STAND

FIGURE C-2 INTERNAL

COMPONENTS ASSY

AFFFF 22680 48249-01 UNIT SUB-ASSY ..................................

1 AFFFF 22938 184 TRAILER RUNNING GEAR, .................

3000 LB CAPACITY,.............................

FIGURE C-3 FOR.................................

BREAKDOWN ..................................... 1

2 XDFZZ 22680 89325-01 FRAME ASSY TRAILER.......................

WELDED.............................................. 1

3 XDFZZ 22680 119562-01 N/P 1" SUCTTON ................................. 1

4 XDFZZ 22680 119562-02 N/P 3/4" OUTLET ................................. 1

5 XDFZZ 22680 119562-03 N/P 1/2" OUTLET ................................. 1

6 XDFZZ 22680 119562-04 N/P EARTH GND.................................. 1

7 XDFZZ 18097 P0920397 MOTOR, AC, 28HP, 220/440/...............

3160 ..................................................... 1

8 XDFZZ 39428 91151A033 STANDARD BEVEL WASHER ............. 4

9 PAFZZ 96906 MS90726-114 SCREW, CAP, HEX HD........................ 4

10 PAFZZ 96906 MS35338-48 WASHER, LOCK.................................. 12

11 PAFZZ 96906 MS51971-5 PLAIN HEX........................................... 4

12 XDFZZ 22680 411261-01 COUPLING, FLEXIBLE ........................ 1

13 XDFZZ 61675 1304S-320S-X-6.63 BRAGKET, MTG PUMP ....................... 1

14 XDFZZ 22680 1012154-01 PUMP HP, 10 GPM 3000.....................

PSI, 5 GPM 5000 PSI .......................... 1

15 XDFZZ 22680 119362-01 SPACER .............................................. 1

16 XDFZZ 29440 F48S3-84 SPUR GEAR ........................................ 1

17 XDFZZ 1BD74 91245A350 SCREW, CAP, HEX HD,.......................

METRIC ............................................... 1

18 XDFXX 39428 91105A133 WASHER, STAR .................................. 1

19 XDFZZ 22680 58355-01 FLOW INDICATOR ASSY .................... 1

20 PAFZZ 96906 MS90725-113 SCREW, CAP, HEX HD........................ 4

21 XDFZZ 22680 89317-01 FRAME PANEL AND ............................

RESERVOIR ....................................... 1

22 AFFFF 22680 58339-01 CONTROL PANEL ASSY,: ...................

FIGURE C-10 FOR...............................

BREAKDOWN ..................................... 1

23 PAFZZ 96906 MS35206-280 SCREW PNH MACHINE 4

24 PAFZZ 96906 MS35206-281 SCREW PNH MAGHINE ...................... 8

25 PAFZZ 96906 MS35338-44 WASHER, LOCK..................................

.............................................................

12

26 PAFZZ 96906 MS35649-2252 NUT, PLAIN HEX.................................. 12

27 XDFZZ 22680 119349-01 EXTENSION SHAFT, VOLUME............

.............................................................

CONTROL ........................................... 1

28 XDFZZ 30780 8B79-6 HANDLE, NHA C-10 ............................. REF

29 XDFZ2 30780 459B-1 NUT, NHA C-10 .................................... REF

C-2-1

C-14
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

30 PAFZZ 96906 MS18067-37 SET SCREW, HEX SKT ....................... 1

31 XDFZZ 01276 155-S4-8D COUPLING HALF, 1/2 INCH................. 1

32 PAFZZ 96906 MS35207-263 SCREW MACHINE PNH ...................... 6

33 PAFZZ 96906 MS35338-43 WASHER LOCK................................... 6

34 PAFZZ 96906 MS35650-302 NUT, PLAIN HEX.................................. 6

35 XDFZZ 01276 155-S7-8D CAP, DUST, 1/2 INCH .......................... 1

36 XDFZZ 01276 155-S4-12D COUPLING HALF, 3/4 INCH................. 1

37 XDFZZ 01276 155-S7-12D CAP,DUST 3/4 INCH ............................ 1

38 XDFZZ 01276 155-S4-16D COUPLING HALF, 1 INCH ................... 1

39 XDFZZ 01276 155-S7-16D CAP, DUST, 1 INCH............................. 1

40 XDFZZ 22680 119369-01 BRACKET ............................................ 1

41 PAFZZ 96906 MS90725-32 SCREW CAP HEX................................ 4

42 PAF ZZ 96906 MS35338-45 WASHER, LOCK.................................. 4

43 PAFZZ 96906 MS35649-2312 NUT, PLAIN HEX 4

44 AFFFF 22680 58341-01 MANIFOLD ASSY, FIGURE C-9...........

.............................................................

FOR BREAKDOWN.............................. 1

45 PAF ZZ 96906 MS27183-18 WASHER, FLAT .................................. 8

46 XDFZZ 22680 58342-01 FILTER ASSY....................................... 1

47 PAFZZ 96906 MS90725-58 SCREW, CAP HEX............................... 4

48 PAF ZZ 96906 MS35338-46 WASHER, LOCK.................................. 33

49 PAFZZ 96906 MS35649-2382 NUT, PLAIN HEX.................................. 33

50 XDFZZ 81321 50223 FILTER, MICRONIC, 5000 PSI,............

12 GPM ................................................ 1

51 PAFZZ 96906 MS90725-15 SCREW CAP HEX................................ 2

52 PAFZZ 96906 MS90725-60 SCREW CAP HEX................................ 17

53 PAFZZ 96906 MS90725-62 SCREW CAP HEX................................ 8

54 PAFZZ 96906 MS90725-65 SCREW CAP HEX................................ 2

55 AFFFF 22680 48243-01 HYD INSTL, FIGURE C-7 FOR.............

BREAKDOWN ..................................... 1

56 AFFFF 22680 48227-01 HYD RESERVOIR ASSY,.....................

FIGURE C-8 FOR.................................

BREAKDOWN ..................................... 1

57 XDF ZZ 23826 52RAS03 PLATE, LEGEND ................................. 1

58 XDFZZ 23826 52PA8A3 OPERATOR PUSHBUTTON ................

.............................................................

1

59 XDFZZ 23826 52BAA BLOCK, CONTACT .............................. 2

60 XDF ZZ 23826 52RAS04 PLATE, LEGEND ................................. 1

61 XDFZZ 23826 52PA8A2 OPERATOR PUSHBUTTON ................

.............................................................

1

62 XDFZZ 22680 119562-05 N/P MOTOR ......................................... 1

63 XDFZZ 6X156 104-3502-0213-403 LIGHT, PILOT ...................................... 1

64 XDFZZ 71744 6S6DC-130 V LAMP, BAYONET ................................ 1

65 XDFZZ 22680 119562-06 N/P POWER ON................................... 1

66 AFFFF 22680 48253-01 ENCLOSURE ASSY, ELEC..................

.............................................................

TRICAL, FIGURE C-4...........................

FOR BREAKDOWN.............................. 1

67 XDFZZ 83664 1342-36231 CONDUIT ............................................. 4

C-2-2

C-15
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

68 XDFZZ 57797 ST-100 CONNECTOR 1

69 XDFZZ 17680 RAC01370 WASHER, REDUCING 2

70 XDFZZ 53421 T120MR TIE, CABLE 1

71 PAFZZ 96906 MS90725-6 SCREW, CAP HEX 6

72 PAFZZ 96906 MS27183-10 WASHER, FLAT 9

73 PAFZZ 96906 MS90725-3 SCREW, CAP HEX 3

74 PAFZZ 96906 MS35335-35 WASHER, LOCK 1

75 PAFZZ 96906 MS35426-16 NUT, WING 1

76 XDFZZ 04368 N-2150 PLATE NUT, TIEDOWN,

TRAILER CHASSIS 4

77 XDFZZ 04368 T-2200 RING ASSY, TIEDOWN 10,000

LB 4

78 PAF ZZ 8134g M5086/2-18-9 WIRE ELECTRIC 50

79 PAFZZ 81349 M5086/2-6-9 WIRE ELECTRIC 24

80 PAFZZ 88044 AN6235-4A ELEMENT, HP FILTER 1

81 PAFZZ 88044 AN6236-3 ELEMENT, LP FILTER

END OF FIGURE

1

C-2-3

C-16
TM 1-4920-446-13 & P

Figure C-3 Running Gear Assembly, D-6-A

C-17
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 02 RUNNING GEAR

GROUP 0201 AXLE AND

STEERING ASSY

GROUP 0206 BRAKE ASSY

GROUP 0207 TIRES AND

TUBES

GROUP 0208 TOWBAR

FIGURE C-3 RUNNING GEAR ASSY

AFFFF 22938 1-184-1396 FRONT AXLE ASSY............................. 1

1 XAFZZ 22938 184-1396-1 BEAM ASSY, WELDMENT................... 1

2 XDFZZ 22938 3-3806 KNUCKLE ASSY, LH............................ 1

3 XDFZZ 22938 4-3806 KNUCKLE ASSY, RH ........................... 1

XDFZZ 22938 5401 KING PIN ............................................. 2

5 PAFZZ 22938 MS16562-174 ROLL PIN, 3/8' DIAMETER X ...............

1-3/4" LG .............................................. 2

6 XDFZZ 22938 1 3851 CENTER ARM ASSY........................... 1

7 XDFZZ 22938 4701-3 WASHER, 1-3/16" ID X 2-1/4"...............

OD ....................................................... 3

8 XDFZZ 22938 5400-1 CENTER PIN, 1-1/8"~ DIA....................

METER X 3-5/8" LG.............................. 1

XDFZZ 22938 MS24665-623 COTTER PIN, 1/8" DIAMETER.............

X 2" LG................................................. 1

10 XDFZZ 22938 3906-190 TIE ROD ASSY, 19" C TO C ................ 2

11 XDFZZ 22938 4702-2 WASHER, SPINDLE, 1" ID................... 2

12 XDFZZ 2293& 4600-2 NUT, SPINDLE, 1-14 NF ...................... 2

13 XDFZZ 22938 MS24665-360 PIN, COTTER, 1/8 DIAMETER

X 2 LG ..................................................

.............................................................

2

14 XDFZZ 22938 5801 LUBE FITTING, 1/4 - 28 ....................... 4

15 XDFZZ 22g38 5800 LUBE FITTING, 1/8 NPT ...................... g

16 XDFZZ 22g38 1 3612 HUB ASSY ........................................... 2

17 XDFZZ 22938 4020-1 SPRING TRANSVERSE....................... 1

18 XDFZZ 22938 4257-4 LINK, SHACKLE................................... 2

19 XDFZZ 22938 5402-2 BOLT, SHACKLE.................................. 3

20 XDFZZ 22938 4600-3 NUT, 9/16 - 18, SLOTTED ................... 3

21 XDFZZ 22938 MS24665-355 PIN, COTTER, 1/8 DIAMETER.............

1-1/4 .................................................... 3

22 XDFZZ 22938 5100-2 U-BOLT, 1/2 20 X 3 .............................. 2

23 XDFZZ 22938 4601-7 NUT, 1/2 - 20 SLF LKG......................... 4

24 XDFZZ 22938 4264-1 CLAMP, RADIUS ROD ......................... 2

25 XDFZZ 22938 4264-2 BUSHING, CLAMP ............................... 2

AFFFF 22938 1-184-1346 REAR AXLE ASSY ............................... 1

26 XAFZZ 22938 184-1346-2 BEAM ASSY, WELDMENT................... 1

27 XDFZZ 22938 1-8209 BRAKE ASSY....................................... 2

C-3-1

C-18
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

28 XDFZZ 22938 4600-2 NUT, SPINDLE, 1 - 14 NF .................... 2

29 XDFZZ 22938 4702-2 WASHER, SPINDLE, 1 ID ................... 2

30 XDFZZ 22938 4800-5 PIN, COTTER, 7/8" DIA-.......................

METER 2"............................................. 2

31 XDFZZ 22938 2-3612 HUB & DRUM ASSY ............................

.............................................................

2

32 XDFZZ 22938 4020-1 SPRING, TRANSVERSE ..................... 1

33 XDFZZ 22938 4257-4 LINK, SHACKLE 2

34 XDFZZ 22938 5402-1 BOLT, SHACKLE ................................. 3

35 XDFZZ 22938 4600-3 NUT, 9/16 - 18",- SLOTTED ................. 3

36 XDFZZ 22938 4800-8 PIN, COTTER, 1/8 X 1-1/4" ..................

.............................................................

3

37 XDFZZ 22938 5100-2 U-BOLT, 1/2 - 20 X 3 ........................... 2

38 XDFZZ 22938 4601-7 NUT, 1/2 - 20 SLF LKG ........................ 4

39 XDFZZ 22938 4264-1 CLAMP, RADIUS ROD ........................

.............................................................

2

40 XDFZZ 22938 4264-2 BUSHING, CLAMP .............................. 2

41 XDFZZ 22938 5800 LUBE FITTING, 1/8 NPT 3

XDFZZ 22938 1-3502 DRAWBAR ASSY ................................ 1

42 XDFZZ 22938 3502-01 DRAWBAR WELDMENT ..................... 1

43 XDFZZ 22938 MS24665-623 PIN, COTTER, 1/4" DIA........................

METER X 1-1/2" .................................. 1

44 XDFZZ 22938 5416 PIN, HINGE, 3/4" DIA-..........................

METER X 5-7/8" .................................. 1

AFFFF 22938 1-3712 WHEEL & TIRE ASSY..........................

45 XDFZZ 22938 3712 WHEEL ASSY ...................................... 4

46 XDFFF 22938 6555 TIRE & TUBE

47 XDFFF 22938 1-5904 HANDBRAKE LEVER ASSY ................ 1

48 XDFFF 22938 184-5911 CROSS SHAFT ASSY ......................... 1

49 XDFFF 22938 8300-090 BRAKE ROD (SHORT)......................... 2

50 XDFFF 22938 8300-380 BRAKE ROD (LONG) 1

51 XDFFF 22938 5205 YOKE ................................................. 6

52 XDFFF 22938 4601-5 NUT, 3/8 - 24 6

53 XDFFF 22938 5206 YOKE PIN ........................................... 5

54 XDFZZ 22938 MS 24665-283 PIN , C OTTER, 3/ 32" D IA..................

METER X 5/8" ..................................... 5

55 XDFZZ 60038 24780 BEARING, INNER ............................... 4

56 XDFZZ 60038 15123 BEARING, OUTER .............................. 4

57 XDFZZ 51829 21208 SEAL

END OF FIGURE

8

C-3-2

C-19
TM 1-4920-446-13 & P

Figure C-4 Electrical Components Assembly, D-6A

C-20
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 03 ELECTRICAL

SYSTEM

GROUP 0302 SWITCHES &

CIRCUIT BREAKERS

GROUP 0304 FUSE

FIGURE C-4 ELECTRICAL

COMPONENTS ASSEMBLY

AFFFF 22680 48253-01 ENCLOSURE ASSY, ELEC..................

TRICAL.................................................

1 XDFFF 22680 48258-01 CABLE ASSY, HYD TEST....................

STAND/FIGURE C-5 ............................

FOR BREAKDOWN.............................. 1

2 XDFZZ 22680 l 19320-01 ENCLOSURE, ELECTRICAL................ 1

3 PAFZZ 22680 89326-01 MTG, FRAME ELECTRICAL ................

BOX...................................................... 1

4 PAFZZ 96906 MS90725-3 SCREW, CAP HEX............................... 11

5 PAFZZ 96006 MS90725-10 SCREW, CAP HEX .............................. 1

6 PAFZZ 96906 MS35338-44 WASHER, LOCK ................................. 20

7 PAFZZ 96006 MS35338-33 WASHER, LOCK ................................. 1

8 PAFZZ 96906 MS35649-2252 NUT, PLAIN HEX ................................. 16

9 XDF ZZ 22680 119367-01 BRACKET, TRANSFORMER .............. 1

10 XDF ZZ 3D566 9T58B2893 TRANSFORMER ................................ 1

11 PAFZZ 96906 MS21266-3N GROMMET, PLASTIC ......................... 1

12 XDFZZ 98636 5302 CONNECTOR ..................................... 2

13 XDFZZ 83664 1342-36231 CONDUIT ............................................ 1

14 XDFZZ 17680 RAC01668 NIPPLE, CHASE .................................. 1

15 XDFZZ 59730 146 LOCKNUT, CONDUIT ......................... 1

16 XDFZZ 23826 49D52209-003 KIT, OVERLOAD RESET .................... 1

17 XDFZZ 59730 1945 NIPPLE, CHASE .................................. 1

18 XDFZZ 59730 144 LOCKNUT ........................................... 1

19 XDFZZ 22680 89327-01 SUPPORT, ELECTRICAL BOX 1

20 PAFZZ 96906 MS90725-8 SCREW, CAP HEX .............................. 2

21 PAFZZ 96906 MS27183-41 WASHER, FLAT ..................................

.............................................................

4

22 PAFZZ 3D566 TEC36100 BREAKER, CIRCUIT ........................... 1

23 XBFZZ 22680 89330-01 MTG BRACKET, CIRCUIT....................

BREAKER ............................................ 1

24 PAFZZ 96906 MS35338-42 WASHER, LOCK..................................

.............................................................

 22

25 XDFZZ 22680 40363-01 SCREW, RH MACHINE 4

26 PAFZZ 96906 MS35206-245 SCREW, MACHINE PNH .................... 14

27 XDFZZ 25248 910-3X RELAY ................................................ 1

28 PAFZZ 73631 T-3 BLOCK, TERMINAL ............................. 1

29 PAF ZZ 96906 MS35338-43 WASHER, LO CK ................................ 11

30 PAFZZ 96906 MS35207-261 SCREW, MACHINE PNH .................... 8

C-4-1

C-21
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

31 XDFZZ 71400 BM6031SQ BLOCK, FUSE...................................... 1

32 PAFZZ 71400 NON6 FUSE, CARTRIDGE TYPE................... 1

33 XDFZZ 22680 520047-01 N/P VOLTAGE CONVER-.....................

SION .................................................... 1

34 PAFZZ 73020 AD42ADS RIVET, BLIND ...................................... 4

35 XDFZZ 5N603 230 BLOCK, TERMINAL.............................. 2

36 XDFZZ 5N603 222 BLOCK, TERMINAL.............................. 6

37 PAFZZ 96906 MS35649-282 NUT, PLAIN HEX.................................. 6

38 XDFZZ 04713 MDA952-2 RECTIFIER .......................................... 1

39 PAFZZ 96906 MS35338-40 WASHER, LO CK................................. 2

40 PAFZZ 96906 MS35206-220 SCREW, MACHINE PNH ..................... 2

41 XDFZZ 23826 14GF32AA81 STARTER, MAGNETIC ........................ 1

42 PAFZZ 23826 E-77 ELEMENT, HEATER ............................ 3

43 PAFZZ 23826 E-67 ELEMENT, HEATER ............................ 3

44 PAFZZ 96906 MS35207-263 SCREW, MACHINE PNH ..................... 1

45 PAFZZ 96906 MS35207-264 SCREW, MACHINE PNH ..................... 2

46 PAFZZ 2N406 MR5A RELAY ................................................. 2

47 PAFZZ 96906 MS35206-228 SCREW, MACHINE PNH ..................... 4

48 PAFZZ 96906 MS35338-41 WASHER, LOCK.................................. 4

49 PAFZZ 96906 MS35649-262 NUT, PLAIN HEX..................................

50 XDFZZ 73631 BT-12 BLOCK, TERMINAL.............................. 1

51 PAFZZ 96906 MS35650-302 NUT, PLAIN HEX 4

52 PAFZZ 3D566 9T55Y50G2 TRANSF ORMER ................................ l

53 PAFZZ 96906 MS35206-279 SCREW, MACHINE PNH .....................

END OF FIGURE

4

C-4-2

C-22
TM 1-4920-446-13 & P

Figure C-5 Electrical Wiring and Cable, D-6A

C-23
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 03 ELECTRICAL

SYSTEM

GROUP 0303 WIRING

GABLES

1 AFFFF 22680 48258-01 CABLE ASSY, HYD TEST....................

STAND ................................................ 1

2 PAFZZ 96906 MS27265-3 CONNECTOR ...................................... 1

3 XDFZZ 22680 11989-R-001 WIRE, AWG 1/0 X 55 FEET ................. 3

4 XDFZZ 22680 10728-R-001 WIRE, AWG 6/0 X 55 FEET ................. 3

5 PAFZZ 77414 7S CLAMP, PUNCH-LOK NO. 7S..............

END OF FIGURE

36

C-5-1

C-24
TM 1-4920-446-13 & P

Figure C-6 Hose Assemblies, Test Stand to Aircraft, D-6A

C-25
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 0407 HOSE ASSEMBLY FIGURE C-6 HOSE ASSEM

BLIES (TEST STAND TO

AIRCRAFT)

1 AHFZZ 22680 48250-01 HOSE ASSY, 1/2 INCH 1

2 XBFZZ 98441 4240C8-JS8-JS8- HOSE, 1/2 INCH X 10 FEET. 1

120

3 XBFZZ 01276 155-S5-8D COUPLING HALF 2

4 XBFZZ 01276 155-S9-8D PLUG, DUST 2

5 PAFZZ 96906 MS21919D G- 16 CLAMP, LOOP, CUSHIONED 2

6 AHFZZ 22680 48251-01 HOSE ASSY, 3/4 INCH 1

7 XBFZZ 98441 4240C12-JS12- HOSE, 3/4 INCH X 10 FEET. 1

JS12-120

8 XBFZZ 01276 155-S5-12D COUPLING HALF 2

9 XBFZZ 01276 155-S9-12D PLUG, DUST 2

10 PAFZZ 96906 MS21919DG-20 CLAMP, LOOP, CUSHIONED 2

11 AHFZZ 22680 48252-01 HOSE ASSY, 1 INCH 1

12 XBFZZ 98441 215G16-JS16-JS16 HOSE, 1 INCH XX 10 FEET 1

120

13 XBFZZ 01276 155-S5-16D COUPLING HALF 2

14 XBFZZ 01276 155-S9-16D PLUG, DUST 2

15 PAFZZ 96906 MS21919DG-22 CLAMP, LOOP, CUSHIONED 2

16 XBFZZ 01276 5100-S10-12 CHAIN AR

17 PAFZZ 96906 MS35207-263 SCREW, MACHINE, PNH 6

18 PAFZZ 96906 MS35650-302 NUT, PLAIN HEX

END OF FIGURE

6

C-6-1

C-26
TM 1-4920-446-13 & P

Figure C-7 Hydraulic Piping Installation, D-6A (Sheet 1 of 2)

C-27
TM 1-4920-446-13 & P

Figure C-7 Hydraulic Piping Installation, D-6A (Sheet 2 of 2)

C-28
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

GROUP 0407 LINES, TUBING,

FITTINGS

FIGURE C-7 HYD PIPING

INSTALLATION

AFFFF 22680 48243-01 HYD INSTL...........................................

1 XDFZZ 22680 119559-01 TUBE ASSY ........................................ 1

2 PAFZZ 88044 AN818-12 NUT, TUBE COUPLING, ......................

SHORT ................................................ 5

3 XDFZZ 79470 C35515X12 FITTING ............................................... 5

4 XDFZZ 79470 C5015X12X8 FITTING ............................................... 4

5 PAFZZ 96906 MS51525-B12 ADAPTER, STRAIGHT, TUBE .............

TO BOSS ............................................. 2

6 XDFZZ 79470 C35315X12 FITTING ............................................... 4

7 XDFZZ 30780 12-8TRBTX-S FITTING, REDUCER ............................ 1

8 XDFZZ 30780 12R50XS FITTING ............................................... 3

9 PAFZZ 88044 AN824-12D TEE FLARED TUBE ............................. 6

10 XDF ZZ 30780 12-4TRBTX-S FITTING REDUCER ............................ 2

11 PAFZZ 96906 MS28778-4 PACKING PREFORMED...................... 6

12 PAFZZ 88044 AN815-4 UNION FLARED TUBE......................... 2

13 XDFZZ 30839 1203PS-lA-1 SWITCH, HP, DP, 5000 PSI ................. 1

14 XDFZZ 22680 119520-01 TUBE ASSY ......................................... 2

15 XDFZZ 96906 MS20822-4-4 ELBOW, FLARED TUBE AND..............

PIPE THREADS, 90°............................ 6

16 XDFZZ 88044 AN6289-4 NUT TUBE............................................ 1

17 XDFZZ 96906 MS51527-B4S ELBOW, TUBE TO BOSS, 90°............. 2

18 XDFZZ 96906 MS51527-B8 ELBOW, TUBE TO BOSS, 90°............. 2

19 XDFZZ 96906 MS28778- 6 PACKING, PREFORMED..................... 1

20 XDFZZ 96906 MS51527-B6 ELBOW TUBE...................................... 1

21 XDFZZ 30780 6-4TRBTX-S TUBE END REDUGER......................... 1

22 PAFZZ 88044 AN818-6 NUT, TUBE COUPLING, ......................

SHORT ................................................ 1

23 PAF ZZ 96906 MS28778-12 PACKING, PREFORMED .................... 1

24 PAFZZ 96906 MS28778-10 PACKING, PREFORMED.....................

.............................................................

1

25 PAFZZ 96906 MS51527-B10 ELBOW, TUBE TO BOSS, 90°............. 1

26 XDFZZ 30780 10-8TRBTX-S TUBE END REDUCER 1

27 PAFZZ 96906 MS28778-24 PACKING PREFORMED...................... 1

28 PAFZZ 96906 MS51527-B24 ELBOW, TUBE TO BOSS, 90°............. 1

29 XDFZZ 30780 24X20TRBTX-S TUBE END REDUCER ......................... 1

30 PAFZZ 88044 AN818-24 TUBE COUPLING, SHORT .................. 1

31 XDFZZ 30780 20X16TRBTX-S TUBE END REDUCER ......................... 1

32 PAFZZ 88044 AN818-20 NUT, TUBE COUPLING .......................

SHORT ................................................

.............................................................

1

33 XDFZZ 79470 C5515X16 FITTING ............................................... 1

34 PAFZZ 96906 MS28778- 16 PREFORMED ...................................... 1

C-7-1

C-29
TM 1-4920-446-13 & P

ITEM SM&R CAGE PART DESCRIPTION AND USABLE

NO. CODE CODE NUMBER ON CODE (UOC) QTY

35 PAFZZ 96906 MS51525-B16 ADAPTER, STRAIGHT, TUBE

TO BOSS 1

36 PAFZZ 96906 MS20822-4-4D ELBOW, FLARED TUBE TO

PIPE 3

37 PAFZZ 88044 AN816-4-4D ADAPTER, STRAIGHT, PIPE

TO TUBE 1

38 PAFZZ 88044 AN816-8 ADAPTER, STRAIGHT, PIPE

TO TUBE 1

39 XDFZZ 98441 111417-16D-0200 HOSE 1

40 XDFZZ 98441 4240C12-JSl2- HOSE 1

J9OS12-16

41 XDFZZ 98441 111417-16D-0140 HOSE 1

42 XDFZZ 98441 212R4-JSN4-JSN4 HOSE SIZE4 1

18

43 XDFZZ 98441 193000-4D-0180 HOSE SIZE4 1

44 XDFZZ 98441 111417-16D-0260 HOSE SIZE16 1

45 XDFZZ 98441 212R4-JSN-4JSN- HOSE SIZE4 l

4-0240

46 XDFZZ 22680 119521-01 TUBEASSY 1

47 PAFZZ 88044 AN821-8D ELBOW, FLARED TUBE, 90°. 1

48 XDFZZ 22680 119522-01 TUBEASSY 1

49 XDFZZ 22680 119523-01 TUBEASSY 1

50 XDFZZ 22680 119524-01 TUBEASSY 1

51 XDFZZ 22680 119525-01 TUBEASSY 1

52 XDFZZ 22680 119526-01 TUBEASSY 1

53 XDFZZ 22680 119527-01 TUBEASSY 1

54 XDFZZ 22680 119528-01 TUBEASSY 2

55 PAF ZZ 88044 AN827-12 CROSS-FLARED TUBE 1

56 XDF ZZ 2B027 C5015X12X4 FITTING, REDUCER 1

57 XDFZZ 22680 119529-01 TUBE ASSY 1

58 XDFZZ 22680 119530-01 TUBE ASSY 1

59 XDFZZ 22680 119531-01 TUBE ASSY 1

60 XDFZZ 22680 119532 01 TUBE ASSY 1

61 PAFZZ 88044 AN818-12D NUT, TUBE COUPLING,

SHORT 2

62 XDFZZ 22680 119533-01 TUBE ASSY 1

63 XDFZZ 22680 119534-01 TUBE ASSY 1

64 XDFZZ 22680 119535-01 TUBE ASSY 1

65 XDF ZZ 4L709 150-5000 DAMPENER-PRESS PULSATION 1

66 XDFZZ 22680 119536-01 TUBE ASSY 1

67 PAFZZ 88044 AN824-4 TEE-FLARED TUBE 1

68 XDFZZ 22680 119537-01 TUBE ASSY 1

69 XDFZZ 6M075 458-12SS27-6 VALVE, CHECK 1

70 XDFZZ 22680 119538-01 TUBEASSY 1

C-7-2

C-30
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

71 PAFZZ 88044 AN815-12 UNION-FLARED TUBE ...................... 1

72 XDFZZ 22680 119539-01 TUBE ASSY........................................ 1

73 XDFZZ 22680 119540-01 TUBE ASSY........................................ 1

74 XDFZZ 22680 119541-01 TUBE ASSY........................................ 1

75 PAF ZZ 88044 AN824-8D TEE-FLARED TUBE .......................... 1

76 XDFZZ 22680 119542-01 TUBE ASSY........................................ 1

77 XDFZZ 22680 119543-01 TUBE ASSY........................................ 1

78 XDFZZ 22680 119544-01 TUBE ASSY........................................ 1

79 PAFZZ 96906 MS28777-4 PACKING, PREFORMED.................... 2

80 PAFZZ 88044 AN815 4D UNION-FLARED TUBE ...................... 2

81 XDFZZ 30839 1201PS-1 SWITCH, DP, 150 PSI ........................ 1

82 XDFZZ 22680 119545-01 TUBE ASSY........................................ 1

83 XDFZZ 22680 119546-01 TUBE ASSY........................................ 1

84 XDFZZ 22680 119547-01 TUBE ASSY........................................ 1

85 XDFZZ 22680 119548-01 TUBE ASSY........................................ 1

86 XDFZZ 6M075 624XB-1-12-2 VALVE, RELIEF, ANGLE .................... 1

87 XDFZZ 22680 119549-01 TUBE ASSY........................................ 1

88 XDFZZ 22680 119550-01 TUBE ASSY........................................ 1

89 PAF ZZ 88044 AN824-4D TEE-FLARED TUBE .......................... 1

90 XDFZZ 22680 119551-01 TUBE ASSY........................................ 1

91 XDFZZ 22680 119552-01- TUBE ASSY........................................ 1

92 XDFZZ 22680 119553-01 TUBE ASSY........................................ 1

93 XDFZZ 22680 119554-01 TUBE ASSY........................................ 1

94 XDFZZ 22680 119555-01 TUBE ASSY........................................ 1

95 XDFZZ 22680 119556-01 TUBE ASSY........................................ 1

96 XDFZZ 22680 119557-01 TUBE ASSY........................................ 1

97 XDFZZ 22680 119558-01 TUBE ASSY........................................ 1

98 XDFZZ 6M075 624XB-3-12-2 VALVE, RELIEF, ANGLE .................... 1

99 XDFZZ 6M075 458-12D27-10 VALVE, CHECK, 3/4~ TUBE............... 1

END OF FIGURE

C-7-3

C-31
TM 1-4920-446-13 & P

Figure C-8 Hydraulic Fluid Reservoir, D-6A

C-32
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

GROUP 0405 HYDRAULIC

FLUID RESERVOIR

FIGURE C-8 HYD RESERVOIR

ASSY

PAFZZ 22680 48227-01 HYD RESERVOIR ASSY ....................

1 PAFZZ 22680 48228-01 RESERVOIR HYD .............................. 1

2 XDFZZ 96906 MS51504-B16 ELBOW PIPE TO TUBE ..................... 1

3 XDFZZ 96906 MS20822-12D ELBOW FLARED ............................... 1

4 XDFZZ 1H408 101-HD VALVE, PLUG-TYPE SHUTOFF ................................................... 1

5 PAFZZ 22680 101471-01 GASKET CLEAN OUT ....................... 2

6 XDFZZ 22680 119560-01 COVE-A, RESERVOIR FILL................ 1

7 XDFZZ 22680 119561-01 COVER, R ESERVOIR FLOAT. .......... 1

8 PAFZZ 96906 MS35338-44 Washer, LOCK .................................. 16

9 PAFZZ 96906 MS90725-3 SCREW, MACHINE PNH.................... 16

10 XDFZZ 4K739 FCS-1303-70 ASSY, STRAINER AND FILLER.......... 1

11 XDFZZ 96906 MS20822-8D ELBOW PIPE TO TUBE ..................... 1

12 PAFZZ 75816 BF-4 FILTER, BREATHER .......................... 1

13 PAFZZ 5F877 366-LP KIT, INSTL.......................................... 1

14 PAFZZ 22680 119373-01 RESERVOIR FLOAT ASSY ................ 1

15 PAFZZ 22680 101470-01 GASKET SENSOR ............................. 1

16 PAFZZ 96906 MS35338-42 WASHER, LOCK ................................ 10

17 PAFZZ 96906 MS35265-42 SCREW, MACHINE ........................... 6

18 PAFZZ 96906 MS35265-46 SCREW, MACHINE ........................... 4

END OF FIGURE

C-8-1

C-33
TM 1-4920-446-13 & P

Figure C-9 Manifold Assembly, D-6A

C-34
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

GROUP 0407 MANIFOLD

FIGURE C-9 MANIFOLD ASSY

AFFFF 22680 58341-01 MANIFOLD ASSY................................. 1

1 XAFZZ 22680 101920-01 MANIFOLD HYDRAULIC ..................... 1

2 PAFZZ 91767 1185-4CN750 INSERT HELICOIL ............................... 2

3 PAFZZ 30780 114 SHP-S FITTING, PIPE PLUG ........................... 1

4 PAFZZ 30780 1-1/2 X 1 PTR-S FITTING PIPE THREAD........................ 2

5 PAFZZ 30780 3/4 SHP-S FITTING ............................................... 1

6 PAFZZ 88044 AN912-7D BUSHING, PIPE ................................... 1

7 XDFZZ 73168 20110-0 ~SWITCH, THERM, SPDT.................... 1

8 PAFZZ 22680 89389-01 NIPPLE, MOD....................................... 1

9 PAFZZ 88044 AN910-4D COUPLING, PIPE................................. 1

10 PAFZZ 88044 AN816-16D ADAPTER, STRAIGHT PIPE

TO TUBE ............................................. 1

11 PAFZZ 96906 MS20822-4-4D ELBOW, FLARED TUBE TO

PIPE..................................................... 1

12 PAFZZ 96906 MS51504-B16 ELBOW PIPE TO TUBE ....................... 2

13 PAFZZ 96906 MS20822-12D ELBOW FLARED TUBE TO

PIPE .................................................... 2

14 XDFZZ 22680 119370-01 BRACKET, MANIFOLD ........................ 1

15 PAPZZ 96906 MS35338-44 WASHER, LOCK .................................. 2

16 PAFZZ 96906 MS90725-8 SCREW, CAP HEX HD......................... 2

END OF FIGURE

C-9-1

C-35
TM 1-4920-446-13 & P

Figure C-10 Control Panel Assembly, D-6A

C-36
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

GROUP 05 INSTRUMENT

PANEL

GROUP 0502 CONTROL

PANEL ASSY

FIGURE C-10 CONTROL

PANEL ASSY

AFFFF 22680 58339-01 CONTROL PANEL ASSY......................

1 XDFZZ 22680 119337-01 CONTROL PANEL ............................... 1

2 XDFZZ 22680 119562-07 N/P FLUID PRESS GAUGE

SHUTOFF ........................................ 1

3 PAFZZ 73020 AD42ABS RIVET, BLIND....................................... 58

4 XDFZZ 30780 MV-430-S VALVE, HP NEEDLE 1⁄4-

INCH ................................................ 2

5 XDFZZ 22680 452038-01 N/P HYD FLOW DIAGRAM................... 1

6 XDFZZ 22680 119562-08 N/P CAPACITY..................................... 1

7 XDFZZ 22680 119562-09 N/P FLOW INDICATOR GPM............... 1

8 XDFZZ 22680 119350-01 GAUGE, FLOW INDICATOR

MOD ................................................ 1

9 PAFZZ 96906 MS35649-242 NUT, PLAIN HEX.................................. 2

10 PAFZZ 96906 MS35338-40 WASHER, LOCK .................................. 2

11 XDFZZ 22680 119562-10 N/P HP RELIEF VALVE ........................ 1

12 XDFZZ 96259 1A32-R12-60S VALVE, RELIEF, 400-5000 PSI............. 1

13 PAFZZ 96906 MS51968-23 NUT, PLAIN.......................................... 1

14 XDFZZ 22680 119562-11 N/P COMP SHUTOFF VALVE .............. 1

15 XDFZZ 30780 8B79-6 HANDLE............................................... 1

16 XDFZZ 22680 119562-12 N/P FLOW LIMIT ADJUST.................... 1

17 XDFZZ 22680 119562-13 N/P HP BYPASS VALVE....................... 1

18 XDFZZ 30780 MV-830-S VALVE, FLOW BYPASS....................... 1

19 XDFZZ 22680 119562-14 N/P PRESSURE COMP........................ 1

20 XDFZZ 27005 DBDH6G1X/400/ PRESSURE COMP VALVE .................. 1

12

21 XDFZZ 22680 119335-01 BRACKET, MTG-VALVE ...................... 1

22 PAFZZ 96906 MS90725-15 SCREW, CAP HEX............................... 4

23 PAFZZ 96906 MS35206-281 SCREW, MACHINE PNH...................... 4

24 PAFZZ 96906 MS35338-44 WASHER, LOCK .................................. 8

25 PAFZZ 96906 MS35649-2252 NUT, PLAIN HEX.................................. 8

26 XDFZZ 22680 119562-15 N/P LPAP ............................................ 1

27 XDFZZ 6X156 806-1710-0431-504 LIGHT, INDICATOR ............................. 2

28 PAFZZ 3D566 1815 LAMP ................................................... 2

29 XDFZZ 22680 119562-16 N/P HPAP............................................. 1

30 XDFZZ 22680 119562-17 N/P FILTER IN...................................... 1

31 XDFZZ 22680 119562-18 N/P FILTER OUT.................................. 1

32 XDFZZ 22680 119562-19 N/P SUCT PRESS, BOOST

PUMP ............................................... 1

C-10-1

C-37
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

33 XDFZZ 30327 443-B-4A VALVE, 4-WAY BALL,

SELECTOR .................................... 1

34 XDFZZ 22680 119562-20 N/P HP GAUGE CAL PORT.................. 1

35 PAFZZ 88044 AN832-4 UNION-FLARED TUBE 3/8 ................... 1

36 PAFZZ 88044 AN924-4 NUT, TUBE........................................... 1

37 PAFZZ 88044 AN820-4S CAP FLARED-TUBE FITTING............... 1

38 PAFZZ 88044 AN6289-4 NUT, TUBE .......................................... 1

39 XDFZZ 22680 119562-21 N/P SUCT PRESS CAL

PORT ............................................... 1

40 PAFZZ 88044 AN832-4D UNION FLARED TUBE 3/8 .................. 1

41 PAFZZ 88044 AN924-4D NUT, TUBE........................................... 1

42 PAFZZ 88044 AN820-4D CAP-FLARED TUBE FITTING............... 1

43 PAFZZ 88044 AN6289-4D NUT, TUBE........................................... 1

44 XDFZZ 22680 119562-22 N/P FLOW CONTROL

VALVE 3/4" OUTLET ............................ 1

45 XDFZZ 86768 1-1758-14R VALVE, HP, FLOW CONTROL............. 2

46 XDFZZ 22680 119562-23 N/P FLOW CONTROL

VALVE 1/2" OUTLET......................... 1

47 XDFZZ 22680 119562-24 N/P OUTLET SEL VALVE..................... 1

48 XDFZZ 22680 132798-01 VALVE, MANUAL, ROTARY

SEL, 4 WAY ......................................... 1

49 XDFZZ 22680 119562-25 N/P WARNING ..................................... 1

50 XDFZZ 22680 119562-26 N/P RESERVOIR SHUTOFF

VALVE

51 XDFZZ 22680 48248-01 RESERVOIR SHUTOFF VALVE

ASSY ............................................... 1

52 XDFZZ 22680 89318-01 GAUGE PANEL .................................... 1

53 XDFZZ 0D486 A22-041 FLEX-BOLT MOUNTING ...................... 4

54 XDFZZ 22680 119562-27 N/P HOURMETER ............................... 1

55 XDFZZ 28292 11N-G1 HOURMETER, 0 TO 9,999 ................... 1

56 PAFZZ 96906 MS35206-217 SCREW MACHINE PNH....................... 3

57 XDFZZ 22680 119562-28 N/P FLUID PRESS GAUGE.................. 1

58 XDFZZ 03773 206SFAS0-0-6000 GAUGE, PRESS 0-6000 PSI................. 1

59 PAFZZ 96906 MS35207-264 SCREW MACHINE PNH....................... 3

60 PAFZZ 96906 MS35335-32 WASHER, LOCK .................................. 3

61 PAFZZ 96906 MS35338-43 WASHER, LOCK .................................. 3

62 PAFZZ 96906 MS35650-302 NUT, PLAIN HEX.................................. 3

63 XDFZZ 22680 119562-29 N/P BOOST PRESS GAUGE................ 1

64 XDFZZ 03773 206SFAS30-0-150 GAUGE PRESS, CMPD 30-0-

150 ................................................... 1

65 XDFZZ 22680 119562-30 N/P RESERVOIR FLUID INDICATOR ................................................ 1

66 XDFZZ 5F877 316-AD GAUGE, FUEL LEVEL.......................... 1

67 PAFZZ 96906 MS 35206-245 SCREW, MACHINE ............................. 3

68 PAFZZ 96906 MS 35338-42 WASHER LOCK ................................... 6

C-10-2

C-38
TM 1-4920-446-13&P

ITEM

NO.

SM&R

CODE

CAGE

CODE

PART

NUMBER

DESCRIPTION AND USABLE

ON CODE (UOC) QTY

69 PAFZZ 96906 MS35649-282 NUT, PLAIN HEX.................................. 3

70 XDFZZ 22680 119562-31 N/P FLUID TEMP GAUGE .................... 1

71 XDFZZ 8U456 8514-152 GAUGE TEMP 60 TO 200

DEG F............................................... 1

72 XDFZZ 28520 2073 BUSHING, SNAP.................................. 1

73 PAFZZ 30780 459B-1 NUT ..................................................... 1

END OF FIGURE

C-10-3

C-39/(C-40 blank)
TM 1-4920-446-13 & P

SECTION IV. CROSS-REFERENCE INDEXES

A. NATIONAL STOCK NUMBER INDEX

STOCK NUMBER FIGURE ITEM STOCK NUMBER FIGURE ITEM

5310-00-003-9415 C-2 45 5315-00-212-0066 C-3 13

5310-00-004-3220 C-2 75 5315-00-212-0066 C-3 30

5310-00-004-5033 C-2 48 5306-00-225-3839 C-4 20

5305-00-042-6417 C-2 20 5306-00-225-3839 C-9 16

4730-00-044-4577 C-9 3 5306-00-225-8497 C-2 41

5310-00-045-3296 C-2 33 4730-00-231-4010 C-7 15

5310-00-045-3296 C-1 5 5330-00-251-8839 C-7 23

5310-00-045-3296 C-10 61 5306-00-269-3211 C-2 52

5310-00-045-3296 C-4 29 5306-00-269-3213 C-2 53

5310-00-045-3299 C-1 19 5306-00-269-3215 C-2 54

5310-00-045-3299 C-4 24 4330-00-277-3274 C-2 80

5310-00-045-3299 C-10 68 4730-00-277-6372 C-7 16

5310-00-045-3299 C-8 16 4730-00-277-6372 C-10 38

5310-00-045-4007 C-4 8 6610-00-277-6445 C-10 40

5310-00-056-3395 C-2 49 6610-00-277-6458 C-10 35

5305-00-068-0500 C-2 73 4730-00-277-6837 C-7 12

5305-00-068-0500 C-8 9 6610-00-278-0611 C-7 55

5305-00-068-0500 C-4 4 6610-00-278-2681 C-9 9

5306-00-068-0502 C-2 71 4730-00-278-9376 C-7 67

5305-00-071-2236 C-10 22 5330-00-285-9842 C-7 24

5305-00-071-2236 C-2 51 5340-00-286-9418 C-6 5

5305-00-071-2241 C-4 5 4730-00-287-0267 C-7 30

5310-00-082-1404 C-5 2 4730-00-287-0285 C-7 61

5305-00-105-4056 C-2 30 4730-00-287-0296 C-7 2

5306-00-115-9526 C-2 47 4730-00-287-1024 C-8 11

5306-00-136-9800 C-3 19 4730-00-287-1027 C-8 3

5975-00-152-1071 C-4 18 4730-00-287-1027 C-9 13

6240-00-155-7859 C-10 28 4330-00-288-6907 C-2 50

5310-00-177-7655 C-3 11 4730-00-293-7848 C-2 36

5310-00-177-7655 C-3 29 4730-00-324-1483 C-9 5

5330-00-186-4947 C-7 79 2530-00-350-8642 C-3 6

4730-00-186-9963 C-7 36 5925-00-360-3870 C-4 22

4730-00-187-0840 C-7 37 5310-00-407-9566 C-2 42

5945-00-189-8773 C-4 46 5930-00-435-3898 C-2 59

4730-00-194-0210 C-9 6 2530-00-440-0095 C-3 45

4730-00-194-1043 C-7 47 2530-00-455-1181 C-3 16

4730-00-197-1114 C-7 38 5315-00-460-8315 C-3 5

5920-00-199-9483 C-4 32 4730-00-482-5409 C-2 31

4730-00-203-3831 C-7 22 5320-00-510-7823 C-1 10

5310-00-208-5769 C-10 36 5320-00-510-7823 C-10 3

2530-00-208-7252 C-3 51 5310-00-520-1602 C-3 12

C-41
TM 1-4920-446-13 & P

STOCK NUMBER FIGURE ITEM STOCK NUMBER FIGURE ITEM

5310-00-520-1602 C-3 28 5310-00-809-4058 C-2 72

4730-00-540-1268 C-6 8 5310-00-809-4058 C-4 21

4730-00-541-1116 C-2 38 6685-00-814-5701 C-10 71

5310-00-543-2410 C-4 39 5330-00-819-5111 C-7 27

5310-00-543-2410 C-10 10 4730-00-822-5609 C-7 18

5340-00-543-3904 C-2 35 5310-00-829-9981 C-2 43

4730-00-546-4736 C-2 39 4130-00-832-9801 C-4 43

4730-00-554-7734 C-6 3 4730-00-833-9315 C-8 2

4730-00-555-0896 C-6 13 4730-00-833-9315 C-9 12

5305-00-559-8145 C-8 17 5950-00-835-9845 C-4 52

4730-00-561-1544 C-2 37 5315-00-839-2325 C-10 9

5340-00-561-1545 C-6 9 5340-00-840-6582 C-10 53

5340-00-576-5545 C-6 4 4730-00-840-7236 C-7 33

6145-00-578-6594 C-2 79 5925-00-869-7739 C-4 42

6145-00-578-6602 C-2 78 5305-00-889-2999 C-10 56

2610-00-582-1416 C-3 46 5970-00-900-7898 C-10 72

5310-00-582-5965 C-4 6 5320-00-904-4136 C-10 24

5310-00-582-5965 C-8 8 5930-00-910-5630 C-2 58

5310-00-582-5965 C-2 25 5930-00-910-5633 C-2 61

5310-00-582-5965 C-9 15 4730-00-930-5392 C-7 35

5310-00-582-5965 C-10 24 5310-00-934-9739 C-10 09

5310-00-584-5272 C-2 10 5310-00-934-9747 C-4 9

5310-00-596-7691 C-10 60 5310-00-934-9751 C-6 18

5310-00-596-9441 C-4 7 5310-00-934-9751 C-2 34

5310-00-608-7174 C-3 52 5310-00-934-9751 C-10 62

5305-00-622-9476 C-8 18 5310-00-934-9751 C-10 6

5310-00-627-6128 C-2 74 5310-00-934-9751 C-4 51

5340-00-631-0888 C-6 14 5310-00-934-9757 C-10 69

5975-00-642-7263 C-4 15 5310-00-934-9757 C-3 7

4730-00-675-9216 C-7 4 5310-00-934-9757 C-1 20

4730-00-698-4030 C-10 42 5340-00-943-6041 C-1 4

4730-00-698-4030 C-10 37 4730-00-974-7313 C-7 25

4730-00-710-5571 C-7 5 5305-00-984-4977 C-4 0

4730-00-719-2789 C-7 56 5305-00-984-4988 C-4 47

5306-00-719-5235 C-2 9 5305-00-984-6193 C-4 26

4730-00-722-0086 C-7 75 5305-00-984-6193 C-10 18

5340-00-726-9321 C-6 10 5305-00-984-6193 C-10 67

5340-00-726-9322 C-6 15 4730-00-986-9492 C-9 10

5975-00-752-2703 C-4 17 5305-00-988-1723 C-4 53

5310-00-763-8901 C-10 13 5305-00-988-1724 C-2 23

5310-00-768-0321 C-2 11 5305-00-988-1725 C-2 24

6210-00-803-9882 C-10 27 5305-00-988-1725 C-10 23

4330-00-804-1541 C-2 81 5305-00-989-7434 C-6 17

5330-00-804-5694 C-7 34 5305-00-989-7434 C-4 44

5330-00-804-5695 C-7 19 5305-00-989-7434 C-2 32

5330-00-805-2966 C-7 11

C-42
TM 1-4920-446-13 & P

STOCK NUMBER FIGURE ITEM STOCK NUMBER FIGURE ITEM

5305-00-989-7434 C-1 3 2530-01-023-7090 C-3 4

5305-00-989-7435 C-10 59 2530-01-023-7826 C-3 2

5305-00-989-7435 C-4 45 2530-01-023-7870 C-3 3

5305-00-990-6444 C-4 30 5315-01-024-2559 C-3 44

5310-00-997-1888 C-4 8 5310-01-041-9170 C-10 41

5310-00-997-1888 C-2 26 4730-01-056-1623 C-7 89

5310-00-997-1888 C-10 25 4730-01-056-9433 C-10 43

4730-01-008-1884 C-3 14 5320-01-077-6837 C-4 34

4730-01-008-2814 C-3 15 4010-01-080-0603 C-6 16

4730-01-008-2814 C-3 41 4730-01-105-3911 C-7 32

5315-01-009-7474 C-3 53 5940-01-110-1141 C-4 28

5310-01-009-7475 C-3 35 4730-01-110-9155 C-7 17

5310-01-009-7475 C-3 20 4730-01-143-3941 C-7 20

5310-01-009-7477 C-3 23 2530-01-147-3974 C-3 31

5310-01-009-7477 C-3 38 5210-01-167-5298 C-10 64

5315-01-009-7478 C-3 8 5340-01-186-7762 C-1 22

5310-01-009-7529 C-3 7 4730-01-187-0489 C-7 71

5315-01-012-2711 C-3 43 5930-01-203-1715 C-7 13

5315-01-012-2711 C-3 9 4730-01-205-8034 C-7 28

2530-01-015-0293 C-3 47 6685-01-218-6512 C-10 58

2530-01-015-5216 C-3 27 5310-01-238-7208 C-2 8

C-43/(C-44 blank)
TM 1-4920-446-13 & P

CROSS-REFERENCE INDEXES

B. PART NUMBER INDEX

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

73020 AD42ABS 5320-00-510-7823 C-1 10

73020 AD42ABS 5320-00-510-7823 C-10 3

73020 AD43ABS 5320-00-904-4136 C-1 24

73020 AK42ABS 5320-01-077-6837 C-4 34

88044 AN6235-4A 4330-00-277-3274 C-2 80

88044 AN6236-3 4330-00-804-1541 C-2 81

88044 AN6289-4 4730-00-277-6372 C-10 38

88044 AN6289-4 4730-00-277-6372 C-7 16

88044 AN6289-4D 4730-01-056-9433 C-10 43

88044 AN815-12 4730-01-187-0489 C-7 71

88044 AN815-4 4730-00-277-6837 C-7 12

88044 AN815-4D C-7 80

88044 AN816-16D 4730-00-986-9492 C-9 10

88044 AN816-4-4D 4730-00-187-0840 C-7 37

88044 AN816-8 4730-00-197-1114 C-7 38

88044 AN818-12 4730-00-287-0296 C-7 2

88044 AN818-12D 4730-00-287-0285 C-7 61

88044 AN818-20 4730-01-105-3911 C-7 32

88044 AN818-24 4730-00-287-0267 C-7 30

88044 AN818-6 4730-00-203-3831 C-7 22

88044 AN820-4D 4730-00-698-4030 C-10 42

88044 AN820-4S 4730-00-698-4030 C-10 37

88044 AN821-8D 4730-00-194-1043 C-7 47

88044 AN824-12D C-7 9

88044 AN824-4 4730-00-278-9376 C-7 67

88044 AN824-4D 4730-01-056-1623 C-7 89

88044 AN824-8D 4730-00-722-0086 C-7 75

88044 AN827-12 6610-00-278-0611 C-7 55

88044 AN832-4 6610-00-277-6458 C-10 35

88044 AN832-4D 6610-00-277-6445 C-10 40

88044 AN910-4D 6610-00-278-2681 C-9 9

88044 AN912-7D 4730-00-194-0210 C-9 6

88044 AN924-4 5310-00-208-5769 C-10 36

88044 AN924-4D 5310-01-041-9170 C-10 41

0D486 A22-041 5340-00-840-6582 C-10 53

75816 BF-4 C-8 12

71400 BM6031SQ C-4 31

73631 BT-12 C-4 50

79470 C35315X12 C-7 6

79470 C35515X12 C-7 3

79470 C5015X12X4 4730-00-719-2789 C-7 56

79470 C5015X12X8 4730-00-675-9216 C-7 4

79470 C5515X16 4730-00-840-7236 C-7 33

27005 DBDH6G1X/400/12 C-10 20

23826 E-67 4130-00-832-9801 C-4 43

23826 E-77 5925-00-869-7739 C-4 42

C-45
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

4K739 FCS-1303-70 C-8 10

29440 F48S3-84 C-2 16

04713 MDA952-2 C-4 38

2N406 MR5A 5945-00-189-8773 C-4 46

22938 MS16562-174 5315-00-460-8315 C-35

96906 MS18067-37 5305-00-105-4056 C-2 30

96906 MS20822-12D 4730-00-287-1027 C-9 13

96906 MS20822-12D 4730-00-287-1027 C-83

96906 MS20822-4-4 4730-00-231-4010 C-7 15

96906 MS20822-4-4D 4730-00-186-9963 C-7 36

96906 MS20822-4-4D 4730-00-186-9963 C-9 11

96906 MS20822-8D 4730-00-287-1024 C-8 11

96906 MS21266-3N C-4 11

96906 MS21919DG-16 5340-00-286-9418 C-65

96906 MS21919DG-20 5340-00-726-9321 C-6 10

96906 MS21919DG-22 5340-00-726-9322 C-6 15

96906 MS24665-132 5315-00-839-2325 C-19

22938 MS24665-283 C-3 54

22938 MS24665-355 C-3 21

22938 MS24665-360 5315-00-212-0066 C-3 13

22938 MS24665-623 5315-01-012-2711 C-39

22938 MS24665-623 5315-01-012-2711 C-3 43

96906 MS25281-F4 5340-00-943-6041 C-14

96906 MS27183-10 5310-00-809-4058 C-2 72

96906 MS27183-18 5310-00-003-9415 C-2 45

96906 MS27183-41 5310-00-809-4058 C-4 21

96906 MS27265-3 5310-00-082-1404 C-52

96906 MS28777-4 5330-00-186-4947 C-7 79

96906 MS28778-10 5330-00-285-9842 C-7 24

96906 MS28778-12 5330-00-251-8839 C-7 23

96906 MS28778-16 5330-00-804-5694 C-7 34

96906 MS28778-24 5330-00-819-5111 C-7 27

96906 MS28778-4 5330-00-805-2966 C-7 11

96906 MS28778-6 5330-00-804-5695 C-7 19

96906 MS35206-217 5305-00-889-2999 C-1 56

96906 MS35206-220 5305-00-984-4977 C-4 40

96906 MS35206-228 5305-00-984-4988 C-4 47

96906 MS35206-245 5305-00-984-6193 C-10 18

96906 MS35206-245 5305-00-984-6193 C-4 26

96906 MS35206-245 5305-00-984-6193 C-10 67

96906 MS35206-279 5305-00-988-1723 C-4 53

96906 MS35206-280 5305-00-988-1724 C-2 23

96906 MS35206-281 5305-00-988-1725 C-2 24

96906 MS35206-281 5305-00-988-1725 C-10 23

96906 MS35207-261 5305-00-990-6444 C-4 30

96906 MS35207-263 5305-00-989-7434 C-2 32

96906 MS35207-263 5305-00-989-7434 C-6 17

96906 MS35207-263 5305-00-989-7434 C-13

96906 MS35207-263 5305-00-989-7434 C-4 44

96906 MS35207-264 5305-00-989-7435 C-10 59

C-46
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

96906 MS35207-264 5305-00-989-7435 C-4 45

96906 MS35265-42 5305-00-559-8145 C-8 17

96906 MS35265-46 5305-00-622-9476 C-8 18

96906 MS35335-32 5310-00-596-7691 C-10 60

96906 MS35335-35 5310-00-627-6128 C-2 74

96906 MS35338-33 5310-00-596-9441 C-47

96906 MS35338-40 5310-00-543-2410 C-4 39

96906 MS35338-40 5310-00-543-2410 C-10 10

96906 MS35338-41 5310-00-045-4007 C-4 48

96906 MS35338-42 5310-00-045-3299 C-8 16

96906 MS35338-42 5310-00-045-3299 C-1 19

96906 MS35338-42 5310-00-045-3299 C-10 68

96906 MS35338-42 5310-00-045-3299 C-4 24

96906 MS35338-43 5310-00-045-3296 C-10 61

96906 MS35338-43 5310-00-045-3296 C-2 33

96906 MS35338-43 5310-00-045-3296 C-105

96906 MS35338-43 5310-00-045-3296 C-4 29

96906 MS35338-44 5310-00-582-5965 C-88

96906 MS35338-44 5310-00-582-5965 C-2 25

96906 MS35338-44 5310-00-582-5965 C-46

96906 MS35338-44 5310-00-582-5965 C-9 15

96906 MS35338-44 5310-00-582-5965 C-10 24

96906 MS35338-45 5310-00-407-9566 C-2 42

96906 MS35338-46 5310-00-004-5033 C-2 48

96906 MS35338-48 5310-00-584-5272 C-2 10

96906 MS35426-16 5310-00-004-3220 C-2 75

96906 MS35649-2252 5310-00-997-1888 C-10 25

96906 MS35649-2252 5310-00-997-1888 C-2 26

96906 MS35649-2252 5310-00-997-1888 C-48

96906 MS35649-2312 5310-00-829-9981 C-2 43

96906 MS35649-2382 5310-00-056-3395 C-2 49

96906 MS35649-242 5310-00-934-9739 C-109

96906 MS35649-262 5310-00-934-9747 C-4 49

96906 MS35649-282 5310-00-934-9757 C-10 69

96906 MS35649-282 5310-00-934-9757 C-4 37

96906 MS35649-282 5310-00-934-9757 C-1 20

96906 MS35650-302 5310-00-934-9751 C-16

96906 MS35650-302 5310-00-934-9751 C-6 18

96906 MS35650-302 5310-00-934-9751 C-2 34

96906 MS35650-302 5310-00-934-9751 C-10 62

96906 MS35650-30 5310-00-934-9751 C-4 51

96906 MS51504-B16 4730-00-833-9315 C-82

96906 MS51504-B16 4730-00-833-9315 C-9 12

96906 MS51525-B12 4730-00-710-5571 C-75

96906 MS51525-B16 4730-00-930-5392 C-7 35

96906 MS51527-B10 4730-00-974-7313 C-7 25

96906 MS51527-B24 4730-01-205-8034 C-728

96906 MS51527-B4S 4730-01-110-9155 C-7 17

96906 MS51527-B6 4730-01-143-3941 C-7 20

96906 MS51527-B8 4730-00-822-5609 C-7 18

C-47
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

96906 MS51968-23 5310-00-763-8901 C-10 13

96906 MS51971-5 5310-00-768-0321 C-2 11

96906 MS90725-10 5305-00-071-2241 C-4 5

96906 MS90725-113 5305-00-042-6417 C-2 20

96906 MS90725-15 5305-00-071-2236 C-2 51

96906 MS90725-15 5305-00-071-2236 C-10 22

96906 MS90725-3 5305-00-068-0500 C-8 9

96906 MS90725-3 5305-00-068-0500 C-4 4

96906 MS90725-3 5305-00-068-0500 C-2 73

96906 MS90725-32 5306-00-225-8497 C-2 41

96906 MS90725-58 5306-00-115-9526 C-2 47

96906 MS90725-6 5306-00-068-0502 C-2 71

96906 MS90725-60 5306-00-269-3211 C-2 52

96906 MS90725-62 5306-00-269-3213 C-2 53

96906 MS90725-65 5306-00-269-3215 C-2 54

96906 MS90725-8 5306-00-225-3839 C-9 16

96906 MS90725-8 5306-00-225-3839 C-4 20

96906 MS90726-114 5306-00-719-5235 C-2 9

30780 MV-430-S C-10 4

30780 MV-830-S C-10 18

81349 M5086/2-18-9 6145-00-578-6602 C-2 78

81349 M5086/2-6-9 6145-00-578-6594 C-2 79

04368 N-2150 C-2 76

71400 NON6 5920-00-199-9483 C-4 32

18097 P0920397 C-2 7

17680 RAC01370 C-2 69

17680 RAC01668 C-4 14

98003 SC-B-83314-2CE 5340-01-186-7762 C-1 22

57797 ST-100 C-2 68

04368 T-2200 C-2 77

73631 T-3 5940-01-110-1141 C-4 28

3D566 TEC36100 5925-00-360-3870 C-4 22

53421 T120MR C-2 70

30780 1-1/2X 1 PTR-S C-9 4

86768 1-1758-14R C-10 45

22938 1-184-1346 C-3

22938 1-184-1396 C-3

22938 1-3502 C-3

22938 1-3612 2530-00-455-1181 C-3 16

22938 1-3712 C-3

22938 1-3851 2530-00-350-8642 C-3 6

22938 1-5904 2530-01-015-0293 C-3 47

22938 1-8209 2530-01-015-5216 C-3 27

30780 1/4 SHP-S 4730-00-044-4577 C-9 3

96259 1A32-R12-60S C-10 12

30780 10-8TRBTX-S C-7 26

1H408 101-HD C-8 4

22680 1012154-01 C-2 14

22680 101470-01 C-8 15

22680 101471-01 C-8 5

C-48
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

22680 101920-01 C-9 1

6X156 104-3502-0213-403 C-2 63

22680 10728-R-001 C-5 3

98441 111417-16D-0140 C-7 41

98441 111417-16D-0200 C-7 39

98441 111417-16D-0260 C-7 44

91767 1185-4CN750 C-9 2

22680 119335-01 C-10 21

22680 119337-01 C-10 1

22680 119349-01 C-2 27

22680 119350-01 C-10 8

22680 119362-01 C-2 15

22680 119367-01 C-4 9

22680 119369-01 C-2 40

22680 119370-01 C-9 14

22680 119373-01 C-8 14

22680 119520-01 C-7 14

22680 119521-01 C-7 46

22680 119522-01 C-7 48

22680 119523-01 C-7 49

22680 119524-01 C-7 50

22680 119525-01 C-7 51

22680 119526-01 C-7 52

22680 119527-01 C-7 53

22680 119528-01 C-7 54

22680 119529-01 C-7 57

22680 119530-01 C-7 58

22680 119531-01 C-7 59

22680 119532-01 C-7 60

22680 119533-01 C-7 62

22680 119534-01 C-7 63

22680 119535-01 C-7 64

22680 119536-01 C-7 66

22680 119537-01 C-7 68

22680 119538-01 C-7 70

22680 119539-01 C-7 72

22680 119540-01 C-7 73

22680 119541-01 C-7 74

22680 119542-01 C-7 76

22680 119543-01 C-7 77

22680 119544-01 C-7 78

22680 119545-01 C-7 82

22680 119546-01 C-7 83

22680 119547-01 C-7 84

22680 119548-01 C-7 85

22680 119549-01 C-7 87

22680 119550-01 C-7 88

22680 119551-01 C-7 90

22680 119552-01 C-7 91

22680 119553-01 C-7 92

C-49
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

22680 119554-01 C-7 93

22680 119554-01 C-7 93

22680 119555-01 C-7 94

22680 119556-01 C-7 95

22680 119557-01 C-7 96

22680 119558-01 C-7 97

22680 119559-01 C-7 1

22680 119560-01 C-8 6

22680 119561-01 C-8 7

22680 119562-01 C-2 3

22680 119562-02 C-2 4

22680 119562-03 C-2 5

22680 119562-04 C-2 6

22680 119562-05 C-2 62

22680 119562-06 C-2 65

22680 119562-07 C-10 2

22680 119562-08 C-10 6

22680 119562-09 C-10 7

22680 119562-10 C-10 11

22680 119562-11 C-10 14

22680 119562-12 C-10 16

22680 119562-13 C-10 17

22680 119562-14 C-10 19

22680 119562-15 C-10 26

22680 119562-16 C-10 29

22680 119562-17 C-10 30

22680 119562-18 C-10 31

22680 119562-19 C-10 32

22680 119562-20 C-10 34

22680 119562-21 C-10 39

22680 119562-22 C-10 44

22680 119562-23 C-10 46

22680 119562-24 C-10 47

22680 119562-25 C-10 49

22680 119562-26. C-10 50

22680 119562-27 C-10 54

22680 119562-28 C-10 57

22680 119562-29 C-10 63

22680 119562-30 C-10 65

22680 119562-31 C-10 70

22680 11989-R-001 C-5 4

28292 11N-G1 C-10 55

30780 12-4TRBTX-S C-7 10

30780 12-8TRBTX-S C-7 7

30839 1201PS-1 C-7 81

30839 1203PS-1A 15930-01-203-1715 C-7 13

30780 12R50X-S C-7 8

61675 1304S-320S-X-6.63 C-2 13

22680 132798-01 C-10 48

83664 1342-36231 C-2 67

83664 1342-36231 C-4 13

C-50
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

23826 14GF32AA81 C-4 41

59730 144 5975-00-152-1071 C-4 18

59730 146 5975-00-642-7263 C-4 15

4L709 150-5000 C-7 65

60038 15123 C-3 56

01276 155-S4-12D 4730-00-293-7848 C-2 36

01276 155-S4-16D 4730-00-541-1116 C-2 38

01276 155-S4-8D 4730-00-482-5409 C-2 31

01276 155-S5-12D 4730-00-540-1268 C-6 8

01276 155-S5-16D 4730-00-555-0896 C-6 13

01276 155-S5-8D 4730-00-554-7734 C-6 3

01276 155-S7-12D 4730-00-561-1544 C-2 37

01276 155-S7-16D 4730-00-546-4736 C-2 39

01276 155-S7-8D 5340-00-543-3904 C-2 35

01276 155-S9-12D 5340-00-561-1545 C-6 9

01276 155-S9-16D 5340-00-631-0888 C-6 14

01276 155-S9-8D 5340-00-576-5545 C-6 4

3D566 1815 6240-00-155-7859 C-10 28

22938 184 C-2 1

22938 184-1346-2 C-3 26

22938 184-1396-1 C-3 1

22938 184-5911 C-3 48

98441 193000-4D-0180 C-7 43

59730 1945 5975-00-752-2703 C-4 17

22938 2-3612 2530-01-147-3974 C-3 31

30780 20X16TRBTX-S C-7 31

73168 20110-0 C-9 7

03773 206SFAS0-0-6000 6685-01-218-6512 C-10 58

03773 206SFAS30-0-150 5210-01-167-5298 C-10 64

28520 2073 5970-00-900-7898 C-10 72

98441 212R4-JSN-4JSN-4-0240 C-7 45

98441 212R4-JSN4-JSN4-18 C-7 42

51829 21208 C-3 57

98441 215C16-JS16-JS16-1 C-6 12

5N603 222 C-43 6

5N603 230 C-43 5

30780 24X20TRBTX-S C-72 9

60038 24780 C-35 5

22938 3-3806 2530-01-023-7826 C-3 2

30780 3/4 SHP-S 4730-00-324-1483 C-9 5

5F877 316-AD C-10 66

22938 3502-01 C-34 2

5F877 366-LP C-8 13

22938 3712 2530-00-440-0095 C-3 45

03614 3781 C-1 7

22938 3906-190 C-3 10

22938 4-3806 2530-01-023-7870 C-3 3

22938 4020-1 C-3 17

22938 4020-1 C-3 32

22680 40363-01 C-4 25

C-51
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

22680 411261-01 C-2 12

98441 4240C12-JS12-JS12-120 C-6 7

98441 4240C12-JSI2-J90S12-16 C-7 40

98441 4240C8-JS8-JS8-120 C-6 2

22938 4257-4 C-3 33

22938 4257-4 C-3 18

22938 4264-1 C-3 24

22938 4264-1 C-3 39

22938 4264-2 C-3 25

22938 4264-2 C-3 40

3M181 44-1-2-0 C-1 25

30327 443-B-4A C-10 33

22680 452026-01 C-1 23

22680 452038-01 C-10 5

6M075 458-12D27-10 C-7 99

6M075 458-12SS27-6 C-7 69

30780 459B-1 C-2 29

22938 4600-2 5310-00-520-1602 C-3 28

22938 4600-2 5310-00-520-1602 C-3 12

22938 4600-3 5310-01-009-7475 C-3 35

22938 4600-3 5310-01-009-7475 C-3 20

22938 4601-5 5310-00-608-7174 C-3 52

22938 4601-7 5310-01-009-7477 C-3 38

22938 4601-7 5310-01-009-7477 C-3 23

22938 4701-3 5310-01-009-7529 C-3 7

22938 4702-2 5310-00-177-7655 C-3 11

22938 4702-2 5310-00-177-7655 C-3 29

22938 4800-5 5315-00-212-0066 C-3 30

22938 4800-8 C-3 36

22680 48227-01 C-8

22680 48227-01 C-2 56

22680 48228-01 C-8 1

22680 48243-01 C-2 55

22680 48243-01 C-7

22680 48248-01 C-10 51

22680 48249-01 C-2

22680 48250-01 C-6 1

22680 48251-01 C-6 6

22680 48252-01 C-6 11

22680 48253-01 C-2 66

22680 48253-01 C-4 1

22680 48253-01 C-4

22680 48255-01 C-1

22680 48258-01 C-5 1

22680 48258-01 C-4 2

23826 49D52209-003 C-4 16

81321 50223 4330-00-288-6907 C-2 50

01276 5100-S10-12 4010-01-080-0603 C-6 16

22938 5100-2 C-3 37

22938 5100-2 C-3 22

C-52
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

23826 52BAA 5930-00-435-3898 C-2 59

23826 52PA8A2 5930-00-910-5633 C-2 61

23826 52PA8A3 5930-00-910-5630 C-2 58

23826 52RAS03 C-2 57

23826 52RAS04 C-2 60

22680 520047-01 C-4 33

22938 5205 2530-00-208-7252 C-3 51

22938 5206 5315-01-009-7474 C-3 53

98636 5302 C-4 12

22938 5400-1 5315-01-009-7478 C-3 8

22938 5401 2530-01-023-7090 C-3 4

22938 5402-1 C-3 34

22938 5402-2 5306-00-136-9800 C-3 19

22938 5416 5315-01-024-2559 C-3 44

22938 5800 4730-01-008-2814 C-3 15

22938 5800 4730-01-008-2814 C-3 41

22938 5801 4730-01-008-1884 C-3 14

22680 58329-01 C-1 1

22680 58330-01 C-1 2

22680 58331-01 C-1 13

22680 58332-01 C-1 14

22680 58333-01 C-1 15

22680 58334-01 C-1 11

22680 58335-01 C-1 16

22680 58339-01 C-10

22680 58339-01 C-2 22

22680 58341-01 C-2 44

22680 58341-01 C-9

22680 58342-01 C-2 46

22680 58355-01 C-2 19

30780 6-4TRBTX-S C-7 21

71744 6S6DC-130V C-2 64

6M075 624XB-1-12-2 C-7 86

6M075 624XB-3-12-2 C-7 98

22938 6555 2610-00-582-1416 C-3 46

77414 7S C-5 5

30780 8B79-6 C-10 15

30780 8B79-6 C-2 28

6X156 806-1710-0431-504 6210-00-803-9882 C-10 27

22938 8300-090 C-3 49

22938 8300-380 C-3 50

8U456 8514-152 6685-00-814-5701 C-10 71

22680 89266-01 C-1 17

22680 89275-01 C-1 12

22680 89276-01 C-1 21

22680 89277-01 C-1 8

22680 89317-01 C-2 21

22680 89318-01 C-10 52

22680 89325-01 C-2 2

22680 89326-01 C-4 3

C-53
TM 1-4920-446-13 & P

CAGE PART NUMBER STOCK NUMBER FIGURE ITEM

22680 89327-01 C-4 19

22680 89330-01 C-4 23

22680 89389-01 C-9 8

3D566 9T55Y50G2 5950-00-835-9845 C-4 52

3D566 9T58B2893 C-4 10

25248 910-3X C-4 27

39428 91105A133 C-2 18

39428 91151A033 5310-01-238-7208 C-2 8

1BD74 91245A350 C-2 17

C-54
TM 1-4920-446-13 & P

C. FIGURE NUMBER INDEX

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-1 22680 48255-01

C-1 1 22680 58329-01

C-1 2 22680 58330-01

C-1 3 5305-00-989-7434 96906 MS35207-263

C-1 4 5340-00-943-6041 96906 MS25281-F4

C-1 5 5310-00-045-3296 96906 MS35338-43

C-1 6 5310-00-934-9751 96906 MS35650-302

C-1 7 03614 3781

C-1 8 22680 89277-01

C-1 9 5315-00-839-2325 96906 MS24665-132

C-1 10 5320-00-510-7823 73020 AD42ABS

C-1 11 22680 58334-01

C-1 12 22680 89275-01

C-1 13 22680 58331-01

C-1 14 22680 58332-01

C-1 15 22680 58333-01

C-1 16 22680 58335-01

C-1 17 22680 89266-01

C-1 18 5305-00-984-6193 96906 MS35206-245

C-1 19 5310-00-045-3299 96906 MS35338-42

C-1 20 5310-00-934-9757 96906 MS35649-282

C-1 21 22680 89276-01

C-1 22 5340-01-186-7762 98003 SC-B-83314-2CE

C-1 23 22680 452026-01

C-1 24 5320-00-904-4136 73020 AD43ABS

C-1 25 3M181 44-1-2-0

C-2 22680 48249-01

C-2 1 22938 184

C-2 2 22680 89325-01

C-2 3 22680 119562-01

C-2 4 22680 119562-02

C-2 5 22680 119562-03

C-2 6 22680 119562-04

C-2 7 18097 P0920397

C-2 8 5310-01-238-7208 39428 91151A033

C-2 9 5306-00-719-5235 96906 MS90726-114

C-2 10 5310-00-584-5272 96906 MS35338-48

C-2 11 5310-00-768-0321 96906 MS51971-5

C-2 12 22680 411261-01

C-2 13 61675 1304S-320S-X-6.63

C-2 14 22680 1012154-01

C-2 15 22680 119362-01

C-2 16 29440 F48S3-84

C-2 17 1BD74 91245A350

C-2 18 39428 91105A133

C-2 19 22680 58355-01

C-2 20 5305-00-042-6417 96906 MS90725-113

C-55
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-2 21 22680 89317-01

C-2 22 22680 58339-01

C-2 23 5305-00-988-1724 96906 MS35206-280

C-2 24 5305-00-988-1725 96906 MS35206-281

C-2 25 5310-00-582-5965 96906 MS35338-44

C-2 26 5310-00-997-1888 96906 MS35649-2252

C-2 27 22680 119349-01

C-2 28 30780 8B79-6

C-2 29 30780 459B-1

C-2 30 5305-00-105-4056 96906 MS18067-37

C-2 31 4730-00-482-5409 01276 155-S4-8D

C-2 32 5305-00-989-7434 96906 MS35207-263

C-2 33 5310-00-045-3296 96906 MS35338-43

C-2 34 5310-00-934-9751 96906 MS35650-302

C-2 35 5340-00-543-3904 01276 155-S7-8D

C-2 36 4730-00-293-7848 01276 155-S4-12D

C-2 37 4730-00-561-1544 01276 155-S7-12D

C-2 38 4730-00-541-1116 01276 155-S4-16D

C-2 39 4730-00-546-4736 01276 155-S7-16D

C-2 40 22680 119369-01

C-2 41 5306-00-225-8497 96906 MS90725-32

C-2 42 5310-00-407-9566 96906 MS35338-45

C-2 43 5310-00-829-9981 96906 MS35649-2312

C-2 44 22680 58341-01

C-2 45 5310-00-003-9415 96906 MS27183-18

C-2 46 22680 58342-01

C-2 47 5306-00-115-9526 96906 MS90725-58

C-2 48 5310-00-004-5033 96906 MS35338-46

C-2 49 5310-00-056-3395 96906 MS35649-2382

C-2 50 4330-00-288-6907 81321 50223

C-2 51 5305-00-071-2236 96906 MS90725-15

C-2 52 5306-00-269-3211 96906 MS90725-60

C-2 53 5306-00-269-3213 96906 MS90725-62

C-2 54 5306-00-269-3215 96906 MS90725-65

C-2 55 22680 48243-01

C-2 56 22680 48227-01

C-2 57 23826 52RAS03

C-2 58 5930-00-910-5630 23826 52PA8A3

C-2 59 5930-00-435-3898 23826 52BAA

C-2 60 23826 52RAS04

C-2 61 5930-00-910-5633 23826 52PA8A2

C-2 62 22680 119562-05

C-2 63 6X156 104-3502-0213-403

C-2 64 71744 6S6DC-130 V

C-2 65 22680 119562-06

C-2 66 22680 48253-01

C-2 67 83664 1342-36231

C-2 68 57797 ST-100

C-2 69 17680 RAC01370

C-2 70 53421 T120MR

C-2 71 5306-00-068-0502 96906 MS90725-6

C-56
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-2 72 5310-00-809-4058 96906 MS27183-10

C-2 73 5305-00-068-0500 96906 MS90725-3

C-2 74 5310-00-627-6128 96906 MS35335-35

C-2 75 5310-00-004-3220 96906 MS35426-16

C-2 76 04368 N-2150

C-2 77 04368 T-2200

C-2 78 6145-00-578-6602 81349 M5086/2-18-9

C-2 79 6145-00-578-6594 81349 M5086/2-6-9

C-2 80 4330-00-277-3274 88044 AN6235-4A

C-2 81 4330-00-804-1541 88044 AN6236-3

C-3 22938 1-184-1396

C-31 22938 184-1396-1

C-32 2530-01-023-7826 22938 3-3806

C-33 2530-01-023-7870 22938 4-3806

C-34 2530-01-023-7090 22938 5401

C-35 5315-00-460-8315 22938 MS16562-174

C-36 2530-00-350-8642 22938 1-3851

C-37 5310-01-009-7529 22938 4701-3

C-38 5315-01-009-7478 22938 5400-1

C-39 5315-01-012-2711 22938 MS24665-623

C-3 10 22938 3906-190

C-3 11 5310-00-177-7655 22938 4702-2

C-3 12 5310-00-520-1602 22938 4600-2

C-3 13 5315-00-212-0066 22938 MS24665-360

C-3 14 4730-01-008-1884 22938 5801

C-3 15 4730-01-008-2814 22938 5800

C-3 16 2530-00-455-1181 22938 1-3612

C-3 17 22938 4020-1

C-3 18 22938 4257-4

C-3 19 5306-00-136-9800 22938 5402-2

C-3 20 5310-01-009-7475 22938 4600-3

C-3 21 22938 MS24665-355

C-3 22 22938 5100-2

C-3 23 5310-01-009-747722938 4601-7

C-3 24 22938 4264-1

C-3 25 22938 4264-2

C-3 22938 1-184-1346

C-3 26 22938 184-1346-2

C-3 27 2530-01-015-5216 22938 1-8209

C-3 28 5310-00-520-1602 22938 4600-2

C-3 29 5310-00-177-7655 22938 4702-2

C-3 30 5315-00-212-0066 22938 4800-5

C-3 31 2530-01-147-3974 22938 2-3612

C-3 32 22938 4020-1

C-3 33 22938 4257-4

C-3 34 22938 5402-1

C-3 35 5310-01-009-7475 22938 4600-3

C-3 36 22938 4800-8

C-3 37 22938 5100-2

C-3 38 5310-01-009-7477 22938 4601-7

C-3 39 22938 4264-1

C-57
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-3 40 22938 4264-2

C-3 41 4730-01-008-2814 22938 5800

C-3 22938 1-3502

C-3 42 22938 3502-01

C-3 43 5315-01-012-2711 22938 MS24665-623

C-3 44 5315-01-024-2559 22938 5416

C-3 22938 1-3712

C-3 45 2530-00-440-0095 22938 3712

C-3 46 2610-00-582-1416 22938 6555

C-3 47 2530-01-015-0293 22938 1-5904

C-3 48 22938 184-5911

C-3 49 22938 8300-090

C-3 50 22938 8300-380

C-3 51 2530-00-208-7252 22938 5205

C-3 52 5310-00-608-7174 22938 4601-5

C-3 53 5315-01-009-7474 22938 5206

C-3 54 22938 MS24665-283

C-3 55 60038 24780

C-3 56 60038 15123

C-3 57 51829 21208

C-4 22680 48253-01

C-41 22680 48258-01

C-42 22680 119320-01

C-43 22680 89326-01

C-44 5305-00-068-0500 96906 MS90725-3

C-45 5305-00-071-2241 96906 MS90725-10

C-46 5310-00-582-5965 96906 MS35338-44

C-47 5310-00-596-9441 96906 MS35338-33

C-48 5310-00-997-1888 96906 MS35649-2252

C-49 22680 119367-01

C-4 10 3D566 9T58B2893

C-4 11 96906 MS21266-3N

C-4 12 98636 5302

C-4 13 83664 1342-36231

C-4 14 17680 RAC01668

C-4 15 5975-00-642-7263 59730 146

C-4 16 23826 49D52209-003

C-4 17 5975-00-752-2703 59730 1945

C-4 18 5975-00-152-1071 59730 144

C-4 19 22680 89327-01

C-4 20 5306-00-225-3839 96906 MS90725-8

C-4 21 5310-00-809-4058 96906 MS27183-41

C-4 22 5925-00-360-3870 3D566 TEC36100

C-4 23 22680 89330-01

C-4 24 5310-00-045-3299 96906 MS35338-42

C-4 25 22680 40363-01

C-4 26 5305-00-984-6193 96906 MS35206-245

C-4 27 25248 910-3X

C-4 28 5940-01-110-1141 73631 T-3

C-4 29 5310-00-045-3296 96906 MS35338-43

C-4 30 5305-00-990-6444 96906 MS35207-261

C-58
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-4 31 71400 BM6031SQ

C-4 32 5920-00-199-9483 71400 NON6

C-4 33 22680 520047-01

C-4 34 5320-01-077-6837 73020 AK42ABS

C-4 35 5N603 230

C-4 36 5N603 222

C-4 37 5310-00-934-9757 96906 MS35649-282

C-4 38 04713 MDA952-2

C-4 39 5310-00-543-2410 96906 MS35338-40

C-4 40 5305-00-984-4977 96906 MS35206-220

C-4 41 23826 14GF32AA81

C-4 42 5925-00-869-7739 23826 E-77

C-4 43 4130-00-832-9801 23826E-67

C-4 44 5305-00-989-7434 96906 MS35207-263

C-4 45 5305-00-989-7435 96906 MS35207-264

C-4 46 5945-00-189-8773 2N406 MR5A

C-4 47 5305-00-984-4988 96906 MS35206-228

C-4 48 5310-00-045-4007 96906 MS35338-41

C-4 49 5310-00-934-9747 96906 MS35649-262

C-4 50 73631 BT-12

C-4 51 5310-00-934-9751 96906 MS35650-302

C-4 52 5950-00-835-9845 3D566 9T55Y50G2

C-4 53 5305-00-988-1723 96906 MS35206-279

C-51 22680 48258-01

C-52 5310-00-082-1404 96906 MS27265-3

C-53 22680 10728-R-001

C-54 22680 11989-R-001

C-55 77414 7S

C-61 22680 48250-01

C-62 98441 4240C8-JS8-JS8-120

C-63 4730-00-554-7734 01276 155-S5-8D

C-64 5340-00-576-5545 01276 155-S9-8D

C-65 5340-00-286-9418 96906. MS21919DG-16

C-66 22680 48251-01

C-67 98441 4240C12-JS12-JS12-120

C-68 4730-00-540-1268 01276 155-S5-12D

C-69 5340-00-561-1545 01276 155-S9-12D

C-6 10 5340-00-726-9321 96906 MS21919DG-20

C-6 11 22680 48252-01

C-6 12 98441 215C16-JS16-JS16-120

C-6 13 4730-00-555-0896 01276 155-S5-16D

C-6 14 5340-00-631-0888 01276 155-S9-16D

C-6 15 5340-00-726-9322 96906 MS21919DG-22

C-6 16 4010-01-080-0603 01276 5100-S10-12

C-6 17 5305-00-989-7434 96906 MS35207-263

C-6 18 5310-00-934-9751 96906 MS35650-302

C-7 22680 48243-01

C-71 22680 119559-01

C-72 4730-00-287-0296 88044 AN818-12

C-73 79470 C35515X12

C-74 4730-00-675-9216 79470 C5015X12X8

C-59
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-75 4730-00-710-5571 96906 MS51525-B12

C-76 79470 C35315X12

C-77 30780 12-8TRBTX-S

C-78 30780 12R50X-S

C-79 88044 AN824-12D

C-7 10 30780 12-4TRBTX-S

C-7 11 5330-00-805-2966 96906 MS28778-4

C-7 12 4730-00-277-6837 88044 AN815-4

C-7 13 5930-01-203-1715 30839 1203PS-1A-1

C-7 14 22680 119520-01

C-7 15 4730-00-231-4010 96906 MS20822-4-4

C-7 16 4730-00-277-6372 88044 AN6289-4

C-7 17 4730-01-110-9155 96906 MS51527-B4S

C-7 18 4730-00-822-5609 96906 MS51527-B8

C-7 19 5330-00-804-5695 96906 MS28778-6

C-7 20 4730-01-143-3941 96906 MS51527-B6

C-7 21 30780 6-4TRBTX-S

C-7 22 4730-00-203-3831 88044 AN818-6

C-7 23 5330-00-251-8839 96906 MS28778-12

C-7 24 5330-00-285-9842 96906 MS28778-10

C-7 25 4730-00-974-7313 96906 MS51527-B10

C-7 26 30780 10-8TRBTX-S

C-7 27 5330-00-819-5111 96906 MS28778-24

C-7 28 4730-01-205-8034 96906 MS51527-B24

C-7 29 30780 24X20TRBTX-S

C-7 30 4730-00-287-0267 88044 AN818-24

C-7 31 30780 20X16TRBTX-S

C-7 32 4730-01-105-3911 88044 AN818-20

C-7 33 4730-00-840-7236 79470 C5515X16

C-7 34 5330-00-804-5694 96906 MS28778-16

C-7 35 4730-00-930-5392 96906 MS51525-B16

C-7 36 4730-00-186-9963 96906 MS20822-4-4D

C-7 37 4730-00-187-0840 88044 AN816-4-4D

C-7 38 4730-00-197-1114 88044 AN816-8

C-7 39 98441 111417-16D-0200

C-7 40 98441 4240C12-JS12-J90S12-16

C-7 41 98441 111417-16D-0140

C-7 42 98441 212R4-JSN4-JSN4-18

C-7 43 98441 193000-4D-0180

C-7 44 98441 111417-16D-0260

C-7 45 98441 212R4-JSN-4JSN-4-0240

C-7 46 22680 119521-01

C-7 47 4730-00-194-1043 88044 AN821-8D

C-7 48 22680 119522-01

C-7 49 22680 119523-01

C-7 50 22680 119524-01

C-7 51 22680 119525-01

C-7 52 22680 119526-01

C-7 53 22680 119527-01

C-7 54 22680 119528-01

C-7 55 6610-00-278-0611 88044 AN827-12

C-60
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-7 56 4730-00-719-2789 79470 C5015X12X4

C-7 57 22680 119529-01

C-7 58 22680 119530-01

C-7 59 22680 119531-01

C-7 60 22680 119532-01

C-7 61 4730-00-287-0285 88044 AN818-12D

C-7 62 22680 119533-01

C-7 63 22680 119534-01

C-7 64 22680 119535-01

C-7 65 4L709 150-5000

C-7 66 22680 119536-01

C-7 67 4730-00-278-9376 88044 AN824-4

C-7 68 22680 119537-01

C-7 69 6M075 458-12SS27-6

C-7 70 22680 119538-01

C-7 71 4730-01-187-0489 88044 AN815-12

C-7 72 22680 119539-01

C-7 73 22680 119540-01

C-7 74 22680 119541-01

C-7 75 4730-00-722-0086 88044 AN824-8D

C-7 76 22680 119542-01

C-7 77 22680 119543-01

C-7 78 22680 119544-01

C-7 79 5330-00-186-4947 96906 MS28777-4

C-7 80 88044 AN815-4D

C-7 81 30839 1201PS-1

C-7 82 22680 119545-01

C-7 83 22680 119546-01

C-7 84 22680 119547-01

C-7 85 22680 119548-01

C-7 86 6M075 624XB-1-12-2

C-7 87 22680 119549-01

C-7 88 22680 119550-01

C-7 89 4730-01-056-1623 88044 AN824-4D

C-7 90 22680 119551-01

C-7 91 22680 119552-01

C-7 92 22680 119553-01

C-7 93 22680 119554-01

C-7 94 22680 119555-01

C-7 95 22680 119556-01

C-7 96 22680 119557-01

C-7 97 22680 119558-01

C-7 98 6M075 624XB-3-12-2

C-7 99 6M075 458-12D27-10

C-8 22680 48227-01

C-81 22680 48228-01

C-82 4730-00-833-9315 96906 MS51504-B16

C-83 4730-00-287-1027 96906 MS20822-12D

C-84 1H408 101-HD

C-85 22680 101471-01

C-86 22680 119560-01

C-61
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-87 22680 119561-01

C-88 5310-00-582-5965 96906 MS35338-44

C-89 5305-00-068-0500 96906 MS90725-3

C-8 10 4K739 FCS-1303-70

C-8 11 4730-00-287-1024 96906 MS20822-8D

C-8 12 75816 BF-4

C-8 13 5F877 366-LP

C-8 14 22680 119373-01

C-8 15 22680 101470-01

C-8 16 5310-00-045-3299 96906 MS35338-42

C-8 17 5305-00-559-8145 96906 MS35265-42

C-8 18 5305-00-622-9476 96906 MS35265-46

C-9 22680 58341L01

C-91 22680 101920-01

C-92 91767 1185-4CN750

C-93 4730-00-044-4577 30780 1/4 SHP-S

C-94 30780 1-1/2 X 1 PTR-S

C-95 4730-00-324-1483 30780 3/4 SHP-S

C-96 4730-00-194-0210 88044 AN912-7D

C-97 73168 20110-0

C-98 22680 89389-01

C-99 6610-00-278-2681 88044 AN910-4D

C-9 10 4730-00-986-9492 88044 AN816-16D

C-9 11 4730-00-186-9963 96906 MS20822-4-4D

C-9 12 4730-00-833-9315 96906 MS51504-B16

C-9 13 4730-00-287-1027 96906 MS20822-12D

C-9 14 22680 119370-01

C-9 15 5310-00-582-5965 96906 MS35338-44

C-9 16 5306-00-225-3839 96906 MS90725-8

C-10 22680 58339-01

C-101 22680 119337-01

C-102 22680 119562-07

C-103 5320-00-510-7823 73020 AD42ABS

C-104 30780 MV-430-S

C-105 22680 452038-01

C-106 22680 119562-08

C-107 22680 119562-09

C-108 22680 119350-01

C-109 5310-00-934-9739 96906 MS35649-242

C-10 10 5310-00-543-2410 96906 MS35338-40

C-10 11 22680 119562-10

C-10 12 96259 1A32-R12-60S

C-10 13 5310-00-763-8901 96906 MS51968-23

C-10 14 22680 119562-11

C-10 15 30780 8B79-6

C-10 16 22680 119562-12

C-10 17 22680 119562-13

C-10 18 30780 MV-830-S

C-10 19 22680 119562-14

C-10 20 27005 DBDH6G1X/400/12

C-10 21 22680 119335-01

C-62
TM 1-4920-446-13 & P

FIGURE ITEM STOCK NUMBER CAGE PART NUMBER

C-10 22 5305-00-071-2236 96906 MS90725-15

C-10 23 5305-00-988-1725 96906 MS35206-281

C-10 24 5310-00-582-5965 96906 MS35338-44

C-10 25 5310-00-997-1888 96906 MS35649-2252

C-10 26 22680 119562-15

C-10 27 6210-00-803-9882 6X156 806-1710-0431-504

C-10 28 6240-00-155-7859 3D566 1815

C-10 29 22680 119562-16

C-10 30 22680 119562-17

C-10 31 22680 119562-18

C-10 32 22680 119562-19

C-10 33 30327 443-B-4A

C-10 34 22680 119562-20

C-10 35 6610-00-277-6458 88044 AN832-4

C-10 36 5310-00-208-5769 88044 AN924-4

C-10 37 4730-00-698-4030 88044 AN820-4S

C-10 38 4730-00-277-6372 88044 AN6289-4

C-10 39 22680 119562-21

C-10 40 6610-00-277-6445 88044 AN832-4D

C-10 41 5310-01-041-9170 88044 AN924-4D

C-10 42 4730-00-698-4030 88044 AN820-4D

C-10 43 4730-01-056-9433 88044 AN6289-4D

C-10 44 22680 119562-22

C-10 45 86768 1-1758-14R

C-10 46 22680 119562-23

C-10 47 22680 119562-24

C-10 48 22680 132798-01

C-10 49 22680 119562-25

C-10 50 22680 119562-26

C-10 51 22680 48248-01

C-10 52 22680 89318-01

C-10 53 5340-00-840-6582 0D486 A22-041

C-10 54 22680 119562-27

C-10 55 28292 11N-G1

C-10 56 5305-00-889-2999 96906 MS35206-217

C-10 57 22680 119562-28

C-10 58 6685-01-218-6512 03773 206SFASO-0-6000

C-10 59 5305-00-989-7435 96906 MS35207-264

C-10 60 5310-00-596-7691 96906 MS35335-32

C-10 61 5310-00-045-3296 96906 MS35338-43

C-10 62 5310-00-934-9751 96906 MS35650-302

C-10 63 22680 119562-29

C-10 64 5210-01-167-5298 03773 206SFAS30-0-150

C-10 65 22680 119562-30

C-10 66 5F877 316-AD

C-10 67 5305-00-984-6193 96906 MS35206-245

C-10 68 5310-00-045-3299 96906 MS35338-42

C-10 69 5310-00-934-9757 96906 MS35649-282

C-10 70 22680 119562-31

C-10 71 6685-00-814-5701 8U456 8514-152

C-10 72 5970-00-900-7898 28520 2073

C-10 73 30780 459B-1

C-63/(C-64 blank)
TM 1-4920-446-13&P

APPENDIX D

EXPENDABLE SUPPLIES AND MATERIALS LIST

SECTION I. INTRODUCTION

D-1. Scope. This appendix lists expendable supplies and materials needed to operate and maintain the D-6A Aircraft

Hydraulic System Test Stand. These items are authorized to you by CTA 50-970, Expendable Items (Except Medical,

Class V, Repair Parts, and Heraldic Items).

D-2. Explanation of columns.

a. Column (1) - Item number. This number is assigned to the entry in the listing.

b. Column (2) - Level. This column identifies the lowest level of maintenance that requires the listed item.

O - Aviation Unit Maintenance (AVUM)

F - Aviation Intermediate Maintenance (AVIM)

c. Column (3) - National Stock Number. This is the national stock number assigned to the item; it is to be used

to request or requisition the item.

d. Column (4) - Description. Indicates the federal item name and, if required, a description to identify the item.

e. Column (5) - Unit of Measure (U/M). Indicates the measure used in performing the actual maintenance function. This measure is expressed by a two-character alphabetical abbreviation (e.g., ea, in, pr). If the unit of measure

differs from the unit of issue, requisition the lowest unit of issue that will satisfy your requirements.

SECTION II.

EXPENDABLE SUPPLIES AND MATERIAL LIST FOR

TEST STAND, AIRCRAFT HYDRAULIC SYSTEM, TYPE D-6A

(1)

ITEM

NUMBER

(2)

LEVEL

(3)

NATIONAL

STOCK NUMBER

(4)

DESCRIPTION

(5)

U/M

1 O 9150-00-190-0904 Grease, Automotive and Artillery

MIL-G-10924

lb

2 F 6850-00-285-8011 Solvent, Dry Cleaning, P-D-680 gl

D-1
TM 1-4920-446-13&P

SECTION II.

EXPENDABLE SUPPLIES AND MATERIAL LIST FOR

TEST STAND, AIRCRAFT HYDRAULIC SYSTEM, TYPE D-6A (Contd)

(1)

ITEM

NUMBER

(2)

LEVEL

(3)

NATIONAL

STOCK NUMBER

(4)

DESCRIPTION

(5)

U/M

3 O 9150-00-223-4134 Fluid, Hydraulic

MIL-H-5606

gl

4 O 9150-00-231-9062 Oil, Lubricating

VV-L-800

gl

5 O 8030-00-889-3535 Tape, Antisieze

MIL-T-27730

roll

6 O 9150-00-903-7094 Grease, Silicon, Electric Motor

MIL-L-15719

lb

D-2
TM 1-4920-446-13&P

ALPHABETICAL INDEX

Subject Paragraph

A

Adjust

Brake Assembly.................................................................................................................... 3-39

Adjustments and Control Settings, Preliminary.................................................................................. 2-7

Axle and Steering Assembly

Inspect.................................................................................................................................. 3-20

Service................................................................................................................................. 3-22

Repair................................................................................................................................... 3-23

Replace ................................................................................................................................ 3-22

Removal............................................................................................................................... 3-22

Installation ............................................................................................................................ 3-22

Disassembly ......................................................................................................................... 3-23

Reassembly.......................................................................................................................... 3-23

B

Bleed and Fill Procedures ................................................................................................................. 2-5

Bleeding Procedures........................................ ................................................................................. 2-13

Bleed Valve, Air.......................................................... ...................................................................... 1-19

Brake Assembly

Inspect.................................................................................................................................. 3-37

Service................................................................................................................................. 3-38

Adjust ................................................................................................................................... 3-39

Replace ................................................................................................................................ 3-40

Removal............................................................................................................................... 3-40

Installation ............................................................................................................................ 3-40

Bypass Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

C

Cabinet Assembly

Inspect.................................................................................................................................. 3-16

Repair................................................................................................................................... 3-17

Replace ................................................................................................................................ 3-18

Removal............................................................................................................................... 3-18

Index 1
TM 1-4920-446-13&P

Subject Paragraph

C (Contd)

Installation ............................................................................................................................ 3-18

Cabinet Assembly Maintenance, Summary ....................................................................................... 3-15

Calibration

High Pressure Gauge ........................................................................................................... 3-89

Instruments........................................................................................................................... 3-89

Low Pressure Gauge ............................................................................................................ 3-89

Fluid Temperature Gauge.................................................................................................... 3-89

Capabilities, Test Stand .................................................................................................................... 1-9

Chassis Maintenance, Summary ....................................................................................................... 3-19

Check Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Circuit Breakers

Inspect.................................................................................................................................. 3-52

Service................................................................................................................................. 3-53

Replace ................................................................................................................................ 3-54

Removal............................................................................................................................... 3-54

Installation................... ......................................................................................................... 3-54

Common Tools and Equipment.................... .................................................................................... 3-1

Compensator Control

Inspect.................................................................................................................................. 3-67

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Connection Diagram ......................................................................................................................... Pg 1-10

Control and Adjustments Settings, Preliminary.................................................................................. 2-7

Control Knobs

Inspect.................................................................................................................................. 3-82

Replace ................................................................................................................................ 3-82

Removal............................................................................................................................... 3-82

Installation ............................................................................................................................ 3-82

Control and Instruments .................................................................................................................... T2-1

Controls and Instruments, Operators ................................................................................................. 2-1

Control Settings ................................................................................................................................ T2-2

D

Daily Inspection Requirements .......................................................................................................... T-31

Daily Servicing.................................................................................................................................. T-34

Destruction of Army Material to Prevent Enemy Use......................................................................... 1-3

Index 2
TM 1-4920-446-13&P

Subject Paragraph

D (Contd)

Disassembly

Axle and Steering Assembly ................................................................................................. 3-23

Wheel Assembly................................................................................................................... 3-33

High Pressure Filter.............................................................................................................. 3-74

Low Pressure Filter.............................................................................................................. 3-74

E

Electrical Connections....................................................................................................................... Pg 1-10

Electrical Wiring Schematic .............................................................................................................. Pg 1-8

Electrical System Maintenance, Summary ........................................................................................ 3-49

Emergency Shutdown ....................................................................................................................... 2-9

Equipment Data ............................................................................................................................... T1-1

Expendable Supplies and Materials................................................................................................... D-1

F

Fill and Bleed Procedures ................................................................................................................. 2-5

Fill and Test Procedures, Aircraft ...................................................................................................... 2-14

Filter Assemblies

Inspect.................................................................................................................................. 3-72

Service................................................................................................................................. 3-73

Test ...................................................................................................................................... 3-74

Replace ................................................................................................................................ 3-74

Flow Control Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Flow Indicator

Removal............................................................................................................................... 3-88

Installation ............................................................................................................................ 3-88

Fluid Reservoir

Inspect.................................................................................................................................. 3-69

Repair................................................................................................................................... 3-70

Replace ................................................................................................................................ 3-71

Removal............................................................................................................................... 3-71

Installation ............................................................................................................................ 3-71

Index 3
TM 1-4920-446-13&P

Subject Paragraph

F (Contd)

Fluid Temperature Gauge

Removal............................................................................................................................... 3-88

Installation ............................................................................................................................ 3-88

Calibration ............................................................................................................................ 3-89

Four Way Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Fuses

Inspect.................................................................................................................................. 3-59

Replace ................................................................................................................................ 3-60

Removal............................................................................................................................... 3-60

Installation ............................................................................................................................ 3-60

G

Gauges

Inspect.................................................................................................................................. 3-79

Replace ................................................................................................................................ 3-80

Grease Fittings, Lubrication of........................................................................................................... 3-21

H

High Pressure Gauge

Removal............................................................................................................................... 3-80

Installation ............................................................................................................................ 3-80

Calibration ............................................................................................................................ 3-89

High Pressure Filter

Service................................................................................................................................. 3-73

Test ...................................................................................................................................... 3-73

Removal............................................................................................................................... 3-74

Installation ............................................................................................................................ 3-74

Disassembly ......................................................................................................................... 3-74

Reassembly.......................................................................................................................... 3-74

High Pressure Relief Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Hub and Bearings

Inspect.................................................................................................................................. 3-34

Index 4
TM 1-4920-446-13&P

Subject Paragraph

H (Contd)

Service................................................................................................................................. 3-35

Replace ................................................................................................................................ 3-36

Removal............................................................................................................................... 3-36

Installation ............................................................................................................................ 3-36

Hydraulic Fluid, Replenishing of........................................................................................................ 2-12

Hydraulic Piping

Inspect.................................................................................................................................. 3-75

Repair................................................................................................................................... 3-76

Replace ................................................................................................................................ 3-77

Removal............................................................................................................................... 3-77

Installation ............................................................................................................................ 3-77

Test ...................................................................................................................................... 3-78

Hydraulic Schematic Diagram ........................................................................................................... Pg 1-9

Hydraulic System Maintenance, Summary ........................................................................................ 3-61

I

Improvements, Recommending ........................................................................................................ 1-6

Initial Inspection ................................................................................................................................ 3-7

Inspect

Cabinet Assembly................................................................................................................. 3-16

Axle and Steering Assembly ................................................................................................. 3-20

Tie Rods and Ends ............................................................................................................... 3-25

Springs ................................................................................................................................. 3-28

Wheel Assembly................................................................................................................... 3-31

Hub and Bearings ................................................................................................................ 3-34

Brake Assembly.................................................................................................................... 3-37

Tire and Tube ....................................................................................................................... 3-41

Towbar Assembly ................................................................................................................. 3-45

Main Pump Motor ................................................................................................................. 3-50

Switches ............................................................................................................................... 3-52

Circuit Breakers .................................................................................................................... 3-52

Lights.................................................................................................................................... 3-52

Wiring and Cables ................................................................................................................ 3-55

Fuse ..................................................................................................................................... 3-59

Pump.................................................................................................................................... 3-62

Compensator Control............................................................................................................ 3-67

Volume Control.................................................................................................................... 3-64

Valves .................................................................................................................................. 3-67

Index 5
TM 1-4920-446-13&P

Subject Paragraph

I (Contd)

Fluid Reservoir ..................................................................................................................... 3-69

Filter Assemblies .................................................................................................................. 3-72

Hydraulic Piping ................................................................................................................... 3-75

Gauges................................................................................................................................. 3-79

Control Knobs....................................................................................................................... 3-82

Panel Assembly.................................................................................................................... 3-84

Instruments........................................................................................................................... 3-87

Installation

Cabinet Assembly................................................................................................................. 3-18

Axle and Steering Assembly ................................................................................................. 3-22

Tie Rods and Ends ............................................................................................................... 3-27

Springs ................................................................................................................................. 3-30

Wheel Assembly................................................................................................................... 3-33

Hub and Bearings ................................................................................................................ 3-36

Brake Assembly.................................................................................................................... 3-40

Tire and Tube ....................................................................................................................... 3-44

Towbar Assembly ................................................................................................................. 3-48

Main Pump Motor ................................................................................................................ 3-51

Switches and Lights .............................................................................................................. 3-54

Circuit Breakers .................................................................................................................... 3-54

Wiring and Cables ................................................................................................................ 3-58

Fuse ..................................................................................................................................... 3-60

Main Pump ........................................................................................................................... 3-63

Compensator Control............................................................................................................ 3-68

Volume Control..................................................................................................................... 3-66

High Pressure Relief Valve................................................................................................... 3-68

Low Pressure Relief Valve................................................................................................... 3-68

Flow Control Valve ............................................................................................................... 3-68

Bypass Valve........................................................................................................................ 3-68

Check Valves ....................................................................................................................... 3-68

Bleed Valve.......................................................................................................................... 3-68

Four Way Valve................................................................................................................... 3-68

Fluid Reservoir ..................................................................................................................... 3-71

High Pressure Filter.............................................................................................................. 3-74

Low Pressure Filter............................................................................................................... 3-74

Hydraulic Piping ................................................................................................................... 3-77

Low Pressure Gauge ............................................................................................................ 3-80

High Pressure Gauge ........................................................................................................... 3-80

Control Knobs....................................................................................................................... 3-82

Panel Assembly.................................................................................................................... 3-86

Index 6
TM 1-4920-446-13&P

Subject Paragraph

I (Contd)

Flow Indicator....................................................................................................................... 3-88

Fluid Temperature Gauge..................................................................................................... 3-88

Instrument Panel Maintenance, Summary......................................................................................... 3-81

Instruments

Inspect.................................................................................................................................. 3-87

Replace ................................................................................................................................ 3-88

Calibration ............................................................................................................................ 3-89

Intermediate Inspection Requirements .............................................................................................. T3-2

L

Lights

Inspect.................................................................................................................................. 3-52

Replace ................................................................................................................................ 3-53

Removal............................................................................................................................... 3-54

Installation ............................................................................................................................ 3-54

Low Pressure Filter

Service................................................................................................................................. 3-73

Removal............................................................................................................................... 3-74

Installation ............................................................................................................................ 3-74

Disassembly ......................................................................................................................... 3-74

Reassembly.......................................................................................................................... 3-74

Low Pressure Gauge

Removal............................................................................................................................... 3-80

Installation ............................................................................................................................ 3-80

Calibration ............................................................................................................................ 3-89

Low Pressure Relief Valve

Removal............................................................................................................................... 3-68

Installation ............................................................................................................................ 3-68

Lubricants, Table of........................................................................................................................... T35

Lubrication ........................................................................................................................................ 3-12

M

Main Pump

Removal .............................................................................................................................. 3-63

Installation ............................................................................ ............................................... 3-63

Index 7
TM 1-4920-446-13&P

Subject Paragraph

M (Contd)

Main Pump Motor

Inspect.................................................................................................................................. 3-50

Replace ................................................................................................................................ 3-51

Removal............................................................................................................................... 3-51

Installation ............................................................................................................................ 3-51

Major Components, Descriptive Details............................................................................................ 1-10

Materials and Supplies, Expendable.................................................................................................. D-2

Maintenance Allocation Chart (MAC)................................................................................................. B-1

Maintenance Procedures, Significant Components............................................................................ 3-14

O

Operation, Principles of..................................................................................................................... 1-23

Operator's Control and Instruments ................................................................................................... 2-1

P

Panel Assembly

Inspect.................................................................................................................................. 3-84

Repair................................................................................................................................... 3-85

Replace ................................................................................................................................ 3-86

Removal............................................................................................................................... 3-86

Installation ............................................................................................................................ 3-86

Parts List........................................................................................................................................... C-1

Periodic Inspection............................................................................................................................ 3-11

Periodic Inspection Requirements ..................................................................................................... T3-3

Physical Description, Test Stand ....................................................................................................... 1-8

PMCS, General Information ............................................................................................................. 3-10

Preliminary Lubrication...................................................................................................................... 3-9

Pump

Inspect.................................................................................................................................. 3-62

Replace ................................................................................................................................ 3-63

Removal............................................................................................................................... 3-63

Installation ............................................................................................................................ 3-63

Q

Quality Assurance and Quality Control .............................................................................................. 1-5

Index 8
TM 1-4920-446-13&P

Subject Paragraph

R

Reassembly

Axle and Steering Assembly ................................................................................................. 3-23

Wheel Assembly................................................................................................................... 3-33

High Pressure Filter.............................................................................................................. 3-74

Low Pressure Filter............................................................................................................... 3-74

References (See Appendix A) ........................................................................................................... A-1

Removal

Cabinet Assembly................................................................................................................. 3-13

Axle and Steering Assembly ................................................................................................. 3-22

Tie Rods and Ends ............................................................................................................... 3-27

Springs ................................................................................................................................. 3-30

Wheel Assembly................................................................................................................... 3-33

Hub and Bearings ................................................................................................................. 3-36

Brake Assembly.................................................................................................................... 3-40

Tire and Tube ....................................................................................................................... 3-44

Towbar Assembly ................................................................................................................. 3-48

Main Pump Motor ................................................................................................................. 3-51

Switches ............................................................................................................................... 3-54

Lights.................................................................................................................................... 3-54

Circuit Breakers .................................................................................................................... 3-54

Wiring and Cables ................................................................................................................ 3-58

Fuse. .................................................................................................................................... 3-60

Main Pump. .......................................................................................................................... 3-63

Compensator Control............................................................................................................ 3-68

Volume Control..................................................................................................................... 3-66

High Pressure Relief Valve................................................................................................... 3-68

Low Pressure Relief Valve.................................................................................................... 3-68

Flow Control Valve ............................................................................................................... 3-68

Bypass Valve........................................................................................................................ 3-68

Check Valves ....................................................................................................................... 3-68

Four Way Valve.................................................................................................................... 3-68

Fluid Reservoir ..................................................................................................................... 3-71

High Pressure Filter.............................................................................................................. 3-74

Low Pressure Filter............................................................................................................... 3-74

Hydraulic Piping ................................................................................................................... 3-77

Low Pressure Gauge ............................................................................................................ 3-80

High Pressure Gauge ........................................................................................................... 3-80

Fluid Temperature Gauge..................................................................................................... 3-88

Control Knobs....................................................................................................................... 3-82

Panel Assembly.................................................................................................................... 3-86

Index 9
TM 1-4920-446-13&P

Subject Paragraph

R (Contd)

Flowmeter ............................................................................................................................ 3-88

Repair

Cabinet Assembly................................................................................................................. 3-17

Axle and Steering Assembly ................................................................................................. 3-23

Tire and Tube ....................................................................................................................... 3-43

Towbar Assembly ................................................................................................................. 3-47

Wiring and Cables ................................................................................................................ 3-57

Fluid Reservoir ..................................................................................................................... 3-70

Hydraulic Piping ................................................................................................................... 3-76

Panel Assembly.................................................................................................................... 3-85

Repair Parts ...................................................................................................................................... 3-5

Repair Parts and Special Tools List................................................................................................... C-1

Replace

Cabinet Assembly................................................................................................................. 3-18

Axle and Steering Assembly ................................................................................................. 3-22

Tie Rods and Ends ............................................................................................................... 3-27

Springs ................................................................................................................................. 3-30

Wheel Assembly................................................................................................................... 3-33

Hub and Bearings ................................................................................................................. 3-36

Brake Assembly.................................................................................................................... 3-40

Tire and Tube ....................................................................................................................... 3-44

Towbar Assembly ................................................................................................................. 3-48

Main Pump Motor ................................................................................................................. 3-51

Switches ............................................................................................................................... 3-54

Circuit Breakers .................................................................................................................... 3-54

Lights.................................................................................................................................... 3-53

Wiring and Cables ................................................................................................................ 3-58

Fuse ..................................................................................................................................... 3-60

Pump.................................................................................................................................... 3-63

Volume Control..................................................................................................................... 3-66

Valves .................................................................................................................................. 3-88

Fluid Reservoir ..................................................................................................................... 3-71

Filter Assemblies .................................................................................................................. 3-74

Hydraulic Piping ................................................................................................................... 3-77

Gauges................................................................................................................................. 3-80

Control Knobs....................................................................................................................... 3-82

Panel Assembly.................................................................................................................... 3-86

Instruments........................................................................................................................... 3-88

Replenishing Hydraulic Fluid............................................................................................................. 2-12

Index 10
TM 1-4920-446-13&P

Subject Paragraph

R (Contd)

Reporting Errors................................................................................................................................ Pg i

Reports, Forms and Records............................................................................................................. 1-2

S

Sampling, Fluid................................................................................................................................. 2-10

Service

Axle and Steering Assembly ................................................................................................. 3-22

Tie Rods and Ends ............................................................................................................... 3-26

Springs ................................................................................................................................. 3-29

Wheel Assembly................................................................................................................... 3-32

Hub and Bearings ................................................................................................................ 3-35

Brake Assembly.................................................................................................................... 3-38

Tire and Tube ....................................................................................................................... 3-42

Towbar Assembly ................................................................................................................. 3-46

Switches ............................................................................................................................... 3-53

Circuit Breakers .................................................................................................................... 3-53

Wiring and Cables ................................................................................................................ 3-56

Volume Control..................................................................................................................... 3-65

Filter Assemblies .................................................................................................................. 3-73

High Pressure Filter.............................................................................................................. 3-73

Low Pressure Filter.............................................................................................................. 3-73

Servicing Hydraulic System .............................................................................................................. 3-8

Shutdown, Emergency ...................................................................................................................... 2-9

Shutting Down The Test Stand.......................................................................................................... 2-8

Special Tools .................................................................................................................................... 3-3

Springs

Inspect.................................................................................................................................. 3-28

Service................................................................................................................................. 3-29

Replace ................................................................................................................................ 3-30

Removal............................................................................................................................... 3-30

Installation ............................................................................................................................ 3-30

Storage and Shipment, Preparation................................................................................................... 1-4

Switches

Inspect.................................................................................................................................. 3-52

Service................................................................................................................................. 3-53

Replace ................................................................................................................................ 3-54

Removal............................................................................................................................... 3-54

Installation ............................................................................................................................ 3-54

Index 11
TM 1-4920-446-13&P

Subject Paragraph

T

Tables

Equipment Data.................................................................................................................... Pg 1-5

Controls and Instruments ...................................................................................................... Pg-2-3

Control Settings .................................................................................................................... Pg-2-7

Daily Inspection .................................................................................................................... Pg-3-5

Intermediate Inspection ........................................................................................................ Pg-3-6

Periodic Inspection Requirements......................................................................................... Pg-3-8

Daily Servicing ..................................................................................................................... Pg 3-9

Table of Lubricants ............................................................................................................... Pg-3-9

Troubleshooting Chart .......................................................................................................... Pg-3-10

Test

Filter Assemblies .................................................................................................................. 3-74

High Pressure Filter.............................................................................................................. 3-73

Hydraulic Piping ................................................................................................................... 3-78

Test and Fill Procedures, Aircraft ...................................................................................................... 2-14

Test Equipment................................................................................................................................. 3-4

Test Procedure, Aircraft .................................................................................................................... 2-14

Tie Rods and Ends

Inspect.................................................................................................................................. 3-25

Service................................................................................................................................. 3-26

Replace ................................................................................................................................ 3-27

Removal............................................................................................................................... 3-27

Installation ............................................................................................................................ 3-27

Tire and Tube

Inspect.................................................................................................................................. 3-41

Service................................................................................................................................. 3-42

Repair................................................................................................................................... 3-43

Replace ................................................................................................................................ 3-44

Removal............................................................................................................................... 3-44

Installation ............................................................................................................................ 3-44

Tire Pressure .................................................................................................................................... 3-42

Tools for AVUM and AVIM ............................................................................................................... B-III

Towbar Assembly

Inspect.................................................................................................................................. 3-45

Service................................................................................................................................. 3-46

Repair................................................................................................................................... 3-47

Replace ................................................................................................................................ 3-48

Removal............................................................................................................................... 3-48

Installation ............................................................................................................................ 3-48

Troubleshooting ................................................................................................................................ 3-13

Troubleshooting Chart...................................................................................................................... T3-6

Index 12
TM 1-4920-446-13&P

Subject Paragraph

U

Unpacking and Installation ................................................................................................................ 3-6

V

Valves

Inspect.................................................................................................................................. 3-67

Replace ................................................................................................................................ 3-68

Volume Control

Inspect.................................................................................................................................. 3-64

Service................................................................................................................................. 3-65

Replace ................................................................................................................................ 3-66

Removal............................................................................................................................... 3-66

Installation ............................................................................................................................ 3-66

W

Warnings .......................................................................................................................................... Pg a

Wheel Assembly

Inspect.................................................................................................................................. 3-31

Service................................................................................................................................. 3-32

Replace ................................................................................................................................ 3-33

Removal............................................................................................................................... 3-33

Installation ............................................................................................................................ 3-33

Disassembly ......................................................................................................................... 3-33

Reassembly.......................................................................................................................... 3-33

Wiring and Cables

Inspect.................................................................................................................................. 3-55

Service................................................................................................................................. 3-56

Repair................................................................................................................................... 3-57

Replace ................................................................................................................................ 3-58

Removal............................................................................................................................... 3-58

Installation ............................................................................................................................ 3-58

Index 13/(Index 14 blank)
TM 1-4920-446-13&P

By Order of the Secretary of the Army:

Official:

CARL E. VUONO

General, United States Army

Chief of Staff

WILLIAM J. MEEHAN II

Brigadier General, United States Army

The Adjutant General

DISTRIBUTION:

To be distributed in accordance with DA Form 12-31, AVUM and AVIM Maintenance requirements for All Fixed and

Rotary Wing Aircraft.

*U.S. GOVERNMENT PRINTING OFFICE: 1990 754-125/00168
AMSAV-M Form

1 Oct 87 1379
The Metric System and Equivalents

Linear Measure Liquid Measure

1 centiliter = 10 milliliters = .34 fl. ounce

1 centimeter = 10 millimeters = .39 inch 1 deciliter = 10 centiliters = 3.38 fl. ounces

1 decimeter = 10 centimeters = 3.94 inches 1 liter = 10 deciliters = 33.81 fl. ounces

1 meter = 10 decimeters = 39.37 inches 1 dekaliter = 10 liters = 2.64 gallons

1 dekameter = 10 meters = 32.8 feet 1 hectoliter = 10 dekaliters = 26.42 gallons

1 hectometer = 10 dekameters = 328.08 feet 1 kiloliter = 10 hectoliters = 264.18 gallons

1 kilometer = 10 hectometers = 3,280.8 feet

Square Measure

Weights

1 sq. centimeter = 100 sq. millimeters = .155 sq. inch

1 centigram = 10 milligrams = .15 grain 1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches

1 decigram = 10 centigrams = 1.54 grains 1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet

1 gram = 10 decigram = .035 ounce 1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet

1 dekagram = 10 grams = .35 ounce 1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47

acres

1 hectogram = 10 dekagrams = 3.52 ounces 1 sq. kilometer = 100 sq. hectometers = .386 sq. mile

1 kilogram = 10 hectograms = 2.2 pounds

1 quintal = 100 kilograms = 220.46 pounds Cubic Measure

1 metric ton = 10 quintals = 1.1 short tons

1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch

1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches

1 cu. meter = 1000 cu. decimeters = 35.31 cu. feet

Approximate Conversion Factors

To change To Multiply by To change To Multiply by

inches centimeters 2.540 ounce-inches newton-meters .007062

feet meters .305 centimeters inches .394

yards meters .914 meters feet 3.280

miles kilometers 1.609 meters yards 1.094

square inches square centimeters 6.451 kilometers miles .621

square feet square meters .093 square centimeters square inches .155

square yards square meters .836 square meters square feet 10.764

square miles square kilometers 2.590 square meters square yards 1.196

acres square hectometers .405 square kilometers square miles .386

cubic feet cubic meters .028 square hectometers acres 2.471

cubic yards cubic meters .765 cubic meters cubic feet 35.315

fluid ounces milliliters 29,573 cubic meters cubic yards 1.308

pints liters .473 milliliters fluid ounces .034

quarts liters .946 liters pints 2.113

gallons liters 3.785 liters quarts 1.057

ounces grams 28.349 liters gallons .264

pounds kilograms .454 grams ounces .035

short tons metric tons .907 kilograms pounds 2.205

pound-feet newton-meters 1.356 metric tons short tons 1.102

pound-inches newton-meters .11296

Temperature (Exact)

°F Fahrenheit 5/9 (after Celsius °C

temperature subtracting 32) temperature

PIN: 067810-000