*TM 1-1730-232-13&P

TECHNICAL MANUAL

OPERATOR'S, AVIATION UNIT MAINTENANCE

(AVUM) AND AVIATION INITERMEDIATE

MAINTFENANCE (AVIM)MANUAL

(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

FOR

TRUCK, HELICOPTER GROUND HANDLING

PART NUMBER NSN

204-050-200-5 1730-00-980-9552

214-706-104-101 1730-01-133-9204

1730-EG-1 00 1730-01-133-9204

DISTRIBUTION STATEMENT A: APPROVED FOR PUBLIC RELEASE; DISTRIBUTION IS UNLIMITED.

* THIS MANUAL SUPERSEDES TM1-1730-230-20P,19 JUNE 1989, INCLUDING ALL CHANGES.

HEADQUARTERS, DEPARTMENT OF THE ARM Y

30 JUNE 1995
TM1-1730-232-13&P

GENERAL WARNINGS

WARNING

High pressure hydraulics operate this equipment. Never disconnect any hydraulic line or

fitting without first dropping the hydraulic pressure to zero. A high pressure oil stream can

pierce the body and cause severe injury.

WARNING

Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles and

gloves and use only a well ventilated area. Avoid contact with skin, eyes, and clothes and DO

NOT use near open flame or excessive heat. The solvent's flash point is 100°-138°F (38°-

50°C). If you become dizzy while using cleaning solvent, immediately get fresh air and

medical help. If solvent contacts eyes, immediately flush your eyes with clean water and get

medical help.

WARNING

Sharp edges can cut hands. Use rags or brush to lubricate.

WARNING

Prolonged contact with oils MIL-H-5606, MIL-L-23699 or MILL-7808 may cause a skin rash.

Skin and clothing that contact oil should be thoroughly washed immediately.

WARNING

Always use the same fastener part number (or equivalent) when replacing fasteners. DO NOT

risk using a fastener of less quality; DO NOT mix metric and inch (customary) fasteners.

Mismatched or incorrect fasteners can result in damage, malfunction, or injury.

a
TM1-1730-232-13&P

GENERAL WARNINGS (CONTINUED)

WARNING

Use caution when inflating tires. Make sure tire is properly seated on rim before inflating. An

improperly seated tire can burst with explosive force. Failure to comply can cause DEATH or

serious injury. Never use split-rim wheel assemblies with nuts or bolts that are damaged,

loose, or have damaged threads. Damaged threads can cause improper assembly, which

could cause fasteners to fail, resulting in injury or death.

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

WARNING

Stand on one side of cage, during inflation, never directly in front. Inflate assembly to

recommended pressure, using a clip-on air chuck. DO NOT exceed cold inflation pressures

indicated. Failure to comply may result in serious injury or death.

WARNING

Hydraulic fluid under pressure can penetrate the skin or damage eyes. Fluid leaks under

pressure may not be visible. Use a piece of cardboard or wood to find leaks, but DO NOT use

a bare hand. Wear safety goggles for protection. If fluid enters the skin or eye, get immediate

medical help.

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GENERAL WARNINGS (CONTINUED)

WARNING

Personnel injury may result when operating the hydraulic pump, if the metering valve is not

mounted properly in the pump outlet. This valve controls the rate of descent, and any attempt

to use the control valve release knob to control descent of the helicopter, may prevent the

metering valve from activating properly.

WARNING

Ensure that no personnel or obstructions are under helicopter skids prior to lowering. DO

NOT attempt to use the pressure release knob to control descent of the helicopter. Personnel

injury or equipment damage may occur if the metering valve, which controls the rate of

descent, is not activated. Never operate the hydraulic pump if the metering valve is not

installed in the pump outlet.

WARNING

Personnel injury or damage to the helicopter or ground handling equipment may result if an

attempt is made to disengage the quick release pin before all hydraulic pressure has been

released from the hydraulic pump, and the helicopter skid is resting on the ground.

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the

hydraulic pump before starting any maintenance action. Release hydraulic pressure by

rapidly rotating the pressure release knob counterclockwise.

WARNING

Grip only the pump handle when operating the hand pump. Never operate the hydraulic pump

without the metering valve installed in the pump outlet. This valve controls the rate of

descent when lowering a helicopter after use. Lack of a metering valve could cause damage

to the helicopter and/or injury to personnel.

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GENERAL WARNINGS (CONTINUED)

WARNING

Ensure that no personnel or obstructions are under helicopter skids prior to lowering. DO

NOT attempt to use the pressure release knob to control descent of the helicopter. This may

prevent the metering valve from activating and could cause damage to the helicopter and/or

injury to personnel.

WARNING

Operator injury or death and equipment damage may occur if the clevis pin mandatory

configuration is not implemented. Mandatory configuration requires one washer under head

of clevis pin and one on other end of clevis pin, between clevis and cotter pin. A fracture or

stress of clevis pin may occur under hoses helical weighted load.

WARNING

To prevent personnel injury, the tire and tube must be completely deflated, and the valve stem

cores removed, before attempting to separate the wheel halves.

WARNING

If removal of castle nut from axle requires any appreciable torque, immediately check

condition and security of each split rim attaching bolt and nut. Assure that they are securely

holding inner and outer wheel rim halves together. If not, removal of the castle nut from axle

may result in explosive separation of rims with resultant damage, injury or death.

d
TM 1-1730-232-13&P

TECHNICAL MANUAL HEADQUARTERS

DEPARTMENT OF THE ARMY

NO. 1-1730-232-13&P WASHINGTON, D.C., 30 June 1995

Operator's, Aviation Unit Maintenance (AVUM),and Intermediate

Maintenance (AVIM) Manual

(Including Repair Parts and Special Tools List)

TRUCK, HELICOPTER GROUND HANDLING

PART NUMBER NSN

204-050-200-5 1730-00-980-9552

214-706-104-101 1730-01-133-9204

1730-EG-100 1730-01-133-9204

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 these

procedures, please let us know. Mall your letter or DA Form 2028 (Recommended Changes to

Publications and Blank Forms), or DA Form 2028-2 located in the back of this manual directly to:

Commander, US Army Aviation and Troop Command, ATTN: AMSAT-I-MP, 4300 Goodfellow Blvd.

, St. Louis, MO 63120-1798. A reply will be furnished directly to you.

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited

TABLE OF CONTENTS

PAGE

Section I GENERAL WARNINGS ...................................................................... a

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

Section I General Information ............................................................................ 1-1

Section II Equipment Description and Data ......................................................... 1-6

Section III Technical Principles of Operation ........................................................ 1-10

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

Section I Description and Use of Operator's Controls and Indicators .................. 2-1

Section II Preventive Maintenance Checks and Services (PMCS) ...................... 2-4

Section III Operations Under Usual Conditions .................................................... 2-10

Section IV Operations Under Unusual Conditions ................................................. 2-13

*This manual supersedes TM 1-1 730-230-20P, 19 June 1989, including all changes

i
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CHAPTER 3 AVIATION UNIT MAINTENANCE (AVUM) INSTRUCTIONS .............. 3-1

Section I AVUM Repair Parts, Special Tools, TMDE, and Support Equipment ... 3-1

Section II AVUM Service Upon Receipt .............................................................. 3-2

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

Section IV AVUM Troubleshooting ........................................................................ 3-9

Section V AVUM Maintenance Procedures ......................................................... 3-12

Section VI AVUM Preparation for Storage or Shipment ........................................ 3-43

CHAPTER 4 AVIATION INTERMEDIATE MAINTENANCE (AVIM) INSTRUCTIONS 4-1

Section I AVIM Repair Parts, Special Tools, TMDE, and Support Equipment ..... 4-1

Section II AVIM Service Upon Receipt ................................................................ 4-2

Section III AVIM Preventive Maintenance Checks and Services (PMCS) ............. 4-3

Section IV AVIM Troubleshooting ......................................................................... 4-5

Section V AVIM Maintenance Procedures............................................................ 4-6

Section VI AVIM Preparation for Storage or Shipment .......................................... 4-28

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

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

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

APPENDIX D EXPENDABLE SUPPUES AND MATERIALS UST............................. D-1

APPENDIX E ILLUSTRATED UST OF MANUFACTURED ITEMS .......................... E-1

APPENDIX F TORQUE LIMITS ............................................................................... F-1

ALPHABETICAL INDEX .................................................................... INDEX-1

GLOSSARY ....................................................................................... GLOSSARY-1

ii
TM1-1730-232-13&P

CHAPTER 1

INTRODUCTION

SECTION I GENERAL INFORMATION

1-1. SCOPE OF MANUAL. This manual contains the operating and maintenance instructions for three models of the

Truck, Ground Handling, used during ground handling and maneuvering of a helicopter equipped with skids. The type of

manual, equipment names and model numbers, and purpose of equipment are described below.

1-1.1. Type of Manual. This is a 13&P Operator's, Aviation Unit, and Aviation Intermediate Maintenance Manual,

including Repair Parts and Special Tools List (RPSTL).

1-1.2. Equipment Names and Model Numbers. Three models of the Ground Handling Wheels Assembly are

described in this manual. The equipment names and model numbers are listed below and shown in Figures 1-1, 1-2, and

1-3 respectively.

Wheels Assembly Model 204-050-200-5 (Used with OH-58D)

Wheels Assembly Model 214-706-104-101 (Used with AH-1 or UH-1)

Wheels Assembly Model 1730-EG-100 (Used with or AH-1 or UH-1)

1-1.3. Purpose of Equipment. The Ground Handling Wheels Assembly is used for ground handling and

maneuvering of helicopters. When attached to each skid of a helicopter, hand operated hydraulic pumps are used to

rotate eccentric axles and lift the helicopter skids off the ground. The helicopter can then be moved and

maneuvered in accordance with ground handling instructions. Model 204-050-200-5 is used for ground handling and

maneuvering of helicopter type OH-58D. Model 214-706-104-101 and Model 1730-EG-100, are used for ground

handling and maneuvering of helicopter types AH-1 and UH1. .

1-2. MAINTENANCE FORMS, RECORDS, AND REPORTS. The Department of the Army forms and procedures

required for equipment maintenance will be those prescribed by DA Pam 738-750, The Army Maintenance

Management System (TAMMS) and DA Pam 738-751, Functional Users Manual for The Army Maintenance

Management System- Aviation (TAMMS-A); or AR 700-138, Army Logistics Readiness and Sustainabllity.

1-3. CORROSION PREVENTION AND CONTROL It is important that any corrosion problems with the Ground

Handling Wheels Assembly be reported so that the problem can be corrected and improvements can be made to

prevent the problem in the future. Corrosion is typically associated with rusting of metals, but can also include

deterioration of other materials, such as rubber and plastic Unusual cracking, softening, swelling, or breaking of

these materials may be corrosion problems. Report corrosion problems using Standard Form 368, Product Quality

Deficiency Report. Use key words such as "corrosion," "rust," "deterioration," or "cracking," to ensure that the information

is identified as a CPC problem. Submit the report to the address specified in DA PAM 738-751.

1-1
TM1-1730-232-13&P

1-4. DESTRUCTION OF ARMY MATERIAL TO PREVENT ENEMY USE. Procedures for destroying Army material to

prevent enemy use are listed in TM 750-244-1-4 (FSC 1730).

1-5. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS (EIR). Report equipment improvement

recommendations, for the Ground Handling Wheels Assembly, on an SF 368 Product Quality Deficiency Report.

Specifically state any design or performance deficiencies found during operation or maintenance, and recommendations

to correct the deficiencies. Mail the report to: Commander, US Army Aviation and Troop Command, ATTN: AMSAT-1-

MDO, 4300 Goodfellow Blvd. , St. Louis, MO 63120-1798.

1-6. WARRANTY INFORMATION. There are no warranties on these assemblies.

1-2
TM1-1730-232-13&P

Figure 1-1. Ground Handling Wheels Assembly (Model 204-050-200-5)

1-3
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Figure 1-2. Ground Handling Wheels Assembly (Model 214-706-104-101)

1-4
TM1-1730-232-13&P

Figure 1-3. Ground Handling Wheels Assembly (Model 1730-EG-100)

1-5
TM 1-1730-232-13&P

SECTION II EQUIPMENT DESCRIPTION AND DATA

1-7. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.

The Ground Handling Wheels Assemblies are designed for ground handling and maneuvering of Army helicopter types

OH-58D, AH-1, and UH-1. The equipment characteristics, capabilities, and features are as follows:

1-7.1 Characteristics. The Ground Handling Wheels Assembly is portable, uses quick release pins for attachment to

helicopter skids, has an integral hydraulic hand pump for lifting the helicopter, and has an unlimited turning radius when

maneuvering the helicopter.

1-7.2 Capabilities. The weight and lifting capacity of these units by model are

MODEL WEIGHT LIFTING CAPACITY

204-050-200-5 75 5250 pounds

214-706-104-101 95 6500 pounds

1730-EG-100 95 7500 pounds

1-7.3 Features. All models have two wheels on eccentric axles, a cradle structure with quick release pins, two hydraulic

rams, two hydraulic hose assemblies, and a hand operated hydraulic pump.

1-8. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS.

The major components of the Ground Handling Wheels Assembly are identified in Figure 1-4 and described in the

following table.

Key Item Purpose/function

1 Cradle Assembly Machined aluminum casting for mounting eccentric axles,

wheels, and pump

2 Axle Set Assembly Eccentric axles, rotated by hydraulic rams to lift helicopter.

3 Hydraulic Hand Pump Power source for hydraulic rams, to rotate axles

4 Hand Pump Handle Transfers manual energy to hydraulic energy.

5 Hydraulic Rams Pressurized to rotate eccentric axles.

6 Wheel Assembly Rims and tires provide rolling capability.

7 Release Pin Connects cradle to helicopter skid.

8 Guard Protects nose pin and hydraulic fittings.

9 Fixed (Nose) Pin Connects cradle to helicopter skid.

10 Hose Assembly Connect hydraulic pump to hydraulic rams.

1-6
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Figure 1-4. Ground Handling Wheels Assembly (Typical)

1-7
TM 1-1730-232-13&P

1-9. DIFFERENCES IN MODELS.

The major differences in the three models is the maximum load capacity of the assembly. There are minor differences in

the nose pins and release pins The appearance of cradles, hydraulic pumps, hydraulic hoses, and hydraulic rams may

differ, but the function of the parts is identical.

1-10. LOCATION AND CONTENTS OF STENCIL MARKING, DECALS, AND PLATES

There are four markings on the Ground handling wheels assembly as indicated in Figure 1-5. The WARNING label is

attached to the hand pump. The Model number label is attached to the hand pump handle. The tire inflation label and

wheel identification/WARNING label are attached to the wheel nm

1-11. EQUIPMENT CONFIGURATIONS.

All three models of the Ground Handling Wheels Assembly are configured with two wheels, a hydraulic hand pump,

hydraulically actuated eccentric axles, and a mechanism for attachment to a helicopter. Of these, only the

attachment mechanism is configured differently on the three models. The Ground Handling Wheels Assembly,

Model 204-950-200-5, is configured for attachment to helicopter OH-58D. The other two Ground Handling Wheels

Assemblies, Model 214-706-104-101 and Model 1730-EG-100, are configured for attachment to either AH-1 or UH-1

helicopters.

1-8
TM1-1730-232-13&P

1-9
TM 1-1730-232-13&P

SECTION III TECHNICAL PRINCIPLES OF OPERATION

1-12. GENERAL OPERATION.

General operation consists of positioning the Ground Handling Wheels Assemblies over the skids, attaching the cradle to

the helicopter with a nose pin or quick release pin, lifting the helicopter with the hand operated hydraulic pump, and

moving the helicopter.

1-12.1 Positioning. The Ground Handling Wheels Assemblies are positioned over the left and right landing skid lifting

lugs, which are located aft and forward of the helicopter center. The lug locations provide a "near balance" condition for

ground handling or moving the helicopter by hand. The cradles are aligned and attached to the skid lugs by nose pins

at the front and quick release pins at the rear.

1-12.2 Lifting. Two Ground Handling Wheels Assemblies are used to lift the helicopter off the ground. Each Ground

Handling Wheels Assembly has a hand operated hydraulic pump. Operating the hand pump provides hydraulic force

to hydraulic rams, which rotate the eccentric axles mounted in the cradle assembly. This action lifts the cradle

sufficiently to raise the helicopter landing skids off the ground.

1-12.3 Moving. Once lifted, the helicopter is supported by hydraulic pressure It can be moved by balancing, rolling, and

maneuvering into desired position manually.

WARNING

Personnel injury may result when operating the hydraulic pump, If the metering valve Is not

mounted properly In the pump outlet. This valve controls the rate of descent, and any attempt

to use the control valve release knob to control descent of the helicopter, may prevent the

metering valve from activating properly.

1-13. HYDRAULIC HAND PUMP OPERATION.

The hydraulic hand pump will function in the horizontal, vertical, or any intermediate positions of the Ground

Handling Wheels Assembly. The hydraulic pump is operated as follows:

1-13.1 Metering Valve. The metering valve Is installed in the pump outlet, to restrict the flow of hydraulic fluid

when pressure is released. This ensures that the helicopter is lowered at a slow and safe rate, when the

pressure is released through the pressure control valve. The valve release knob must be rapidly turned, to

ensure proper operation of the metering valve.

1-13.2 Release Knob. The release knob is part of the pressure control valve in the pump body. The control

valve must be closed when pumping up pressure to lift the helicopter and must be opened, by the release knob,

to lower the helicopter. The control valve release knob must be rapidly turned to ensure proper operation of the

metering valve.

1-13.3 Pump Handle. The pump handle operates the pump piston to produce pressure and move a volume of

fluid to the hydraulic rams. The hydraulic rams extend and mechanically rotate the eccentric axles to lift the

helicopter. The control valve must be closed by the release knob before operating the pump handle.

1-10
TM 1-1730-232-13&P

CHAPTER 2

OPERATING INSTRUCTIONS

SECTION I DESCRIPTION AND USE OF

OPERATOR'S CONTROLS AND INDICATORS

2-1. GENERAL OPERATOR INFORMATION.

The Ground Handling Wheels Assembly operator's controls and indicators are described in this section. The functional

use of each control and indicator is explained.

2-2. DESCRIPTION OF OPERATOR'S CONTROLS AND INDICATORS.

The Ground Handling Wheels Assembly operator's controls consist of the hydraulic hand pump handle, pressure control

valve knob, and removable quick release pin. A fillport /hydraulic fluid level indicator is located under the reservoir

cap. Figure 2-1 shows the location of each control and indicator The metering valve operates automatically, but is

included In this description. A model number Is included with the title of a description, unless the description applies to

all models covered In this manual.

2-2.1 Hydraulic Hand Pump Handle Description. The hydraulic hand pump handle has a curved design to minimize

equipment damage or personnel injury. It is attached to the pump piston and pump housing with pivot pins. A hand grip

is provided to ensure safe operation in all weather conditions

2-2.2 Hydraulic Pressure Control Valve Knob Description. The knob is attached to the hydraulic hand pump control

valve shaft with a setscrew. When the knob is moved fully clockwise, the control ball check-valve is closed. When the

knob is moved fully counterclockwise, the control valve is open.

2-2.3 Hydraulic Pressure Metering Valve Description. The metering valve is installed in the pump outlet and looks

like a common fitting. A reducer and tee fitting are installed in the metering valve outlet. The purpose of the valve is

to control the descent rate of the helicopter, when lowering it to the ground.

2-2.4 Quick Release Pin Description, Model 204-050-200-5. A quick release pin is mechanically connected to the

support pin. The release pin is pushed to engage or disengage the support pin with the helicopter skid. An

internal spring returns the pins to the extended position.

2-2.5 Quick Release Pin Description, Model 214-706-104-101 and Model 1730-EG-100. The quick release pin has

an internal spring, two locking balls, and a release button. The spring applies pressure to the locking balls

whenever the release button Is extended. When the release button Is pressed, spring pressure Is relaxed and the

locking balls retract Into the pin. The pin cannot be Installed In or removed from the cradle clevis unless the

release button Is pressed and held. A lanyard connects the pin to the cradle, to prevent loss when the pin is

removed from the cradle clevis.

2-2.6 Fluid Level Indicator Description. The fluid level indicator in installed in the end of the hydraulic pump

reservoir, under the reservoir cap. A sight glass allows visual verification of the fluid level.

2-1
TM1-1730-232-13&P

Figure 2-1. Operator's Controls and Indicators

2-2
TM 1-1730-232-13&P

2-3. USE OF OPERATOR'S CONTROLS AND INDICATORS.

The Ground Handling Wheels Assembly controls and indicators are used as described below

2-3.1. Hydraulic Hand Pump Handle Use. The hydraulic hand pump will function in the horizontal, vertical, or any

intermediate position of the Ground Handling Wheels Assembly. The pressure control valve must be closed by turning

the pressure release knob before operating the pump handle. The pump handle operates the pump piston to produce

pressure and move a volume of fluid to the hydraulic rams. The rams extend and mechanically rotate the eccentric

axles to lift the helicopter.

WARNING

Ensure that no personnel or obstructions are under helicopter skids prior to lowering. Do not

attempt to use the pressure release knob to control descent of the helicopter. Personnel

Injury or equipment damage may occur if the metering valve, which controls the rate of

descent, is not activated. Never operate the hydraulic pump If the metering valve Is not

Installed in the pump outlet.

2-3.2. Hydraulic Pressure Control Valve Knob Use. The pressure release knob is part of the pressure control valve

In the pump body. The control valve must be closed when pumping up pressure to lift the helicopter, and must be

opened to lower the helicopter. The control valve pressure release knob must be rapidly turned to ensure proper

operation of the metering valve. Refer to figure 2-2.

1. A spring holds the poppet open to provide unrestricted flow of hydraulic fluid, while installing a Ground

Handling Wheels Assembly on a helicopter.

2. To raise the helicopter, turn the pressure control valve knob clockwise, to the closed(seated) position.

Work the pump handle up and down to build hydraulic pressure. This extends the two hydraulic rams,

which rotate the eccentric axles and raise the helicopter

3. To lower the helicopter, release the hydraulic pressure by opening the control valve. This is done by

rapidly turning the control valve knob counter clockwise, to the full open position.

2-3.3. Hydraulic Pressure Metering Valve Use. The metering valve Is installed in the pump outlet, to restrict the flow

of hydraulic fluid from the rams to the pump when pressure is released. This ensures that the helicopter is lowered at a

slow and safe rate. The pressure release knob must be rapidly turned to ensure proper operation of the metering valve.

Refer to figure 2-2.

2-3 4. Quick Release Pin Use, Model 204 050-200-5. Procedures for engaging and disengaging the quick release pin

are presented. Refer to figure 2-3

a. Engage Quick Release Pin. Engage the quick release pin as follows:

1. Position the wheels assembly over the lifting lugs on the helicopter skid and guide fixed nose pin into the

rear lifting lug.

2. Rotate the cradle downward until the other lifting lug engages the support pin and snaps into position.

2-3
TM 1-1730-232-13&P

Figure 2-2. Hydraulic Control Components (Typical)

Figure 2-3. Mechanical Connection Components, Model 204-050-200-5

2-4
TM 1-1730-232-13&P

WARNING

Personnel injury or damage to the helicopter or ground handling equipment may result if

an attempt is made to disengage the quick release pin before all hydraulic pressure has

been released from the hydraulic pump, and the helicopter skid is resting on the ground.

b. Disengage Quick Release Pin. Disengage the quick release pin as follows:

1. Release hydraulic pressure from the hydraulic pump by rapidly moving the control valve pressure release 

knob counter clockwise

2. Ensure that the helicopter skid is resting on the ground.

3. Press the quick release pin and remove the support pin from the helicopter lifting lug.

2-3.5. Quick Release Pin Use, Model 214-706104-101 & 1730-EG-100. Procedures for engaging and disengaging the

quick release pin are presented Refer to figure 2-4 and 2-5

a. Engage Quick Release Pin. Engage the quick release pin as follows:

1. Position the wheels assembly over the lifting lugs on the helicopter skid. Insert the fixed nose pin into the

rear lifting lug and rotate the cradle downward until the forward lifting lug is fully seated in the rear cradle

clevis.

2. Press and hold the quick release pin locking ball detent release button and insert pin through both sides of

the clevis and the lifting lug. When the pin locking balls are visible outside the clevis, release the locking ball

detent release button.

WARNING

Personnel injury or damage to the helicopter or ground handling equipment may result if

an attempt is made to disengage the quick release pin before all hydraulic pressure has

been released from the hydraulic pump, and the helicopter skid is resting on the ground.

b. Disengage Quick Release Pin. Disengage the quick release pin as follows:

1. Release hydraulic pressure from the hydraulic pump by rapidly moving the control valve pressure release

knob counter clockwise.

2. Ensure that the helicopter skid is resting on the ground 3. Press the quick release pin locking button and

remove the quick release pin from the cradle clevis and helicopter lifting lug.

2-5
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Figure 2-4. Mechanical Connection Components, Model 214-706-104-101

Figure 2-5. Mechanical Connection Components, Model 1730-EG-100

2-6
TM 1-1730-232-13&P

SECTION II PREVENTIVE MAINTENANCE CHECKS AND SERVICES

(PMCS)

2-4. GENERAL PMCS INFORMATION.

The Preventive Maintenance Checks and Services (PMCS) procedures are performed on a regular basis, to ensure

operational readiness of the Ground Handling Wheels Assembly Defects should be found before they result In serious

damage, equipment failure, or personnel injury. This section contains the PMCS procedures, authorized cleaning agents,

and leakage definitions required by the equipment operator.

2-5. PMCS PROCEDURES.

Information about the general and specific PMCS procedures, and directions for using the Operator's PMCS Procedures

table are presented in the following paragraphs.

2-5.1. General Operator's PMCS Procedures. General rules to follow while performing specific PMCS procedures are

as follows:

a. Safety. Observe all WARNINGS and CAUTIONS while performing PMCS procedures. Ensure that items are

correctly assembled, secured, serviceable, adequately lubricated, and not worn or leaking.

(1) An item is CORRECTLY ASSEMBLED when it is in proper position and all parts are present.

(2) Wires, nuts, hoses, fittings, or attaching hardware are SECURE when they cannot be easily removed by

hand or wrench.

(3) An item is SERVICEABLE if it is not worn beyond repair or likely to fall before the next scheduled

inspection.

(4) An item is ADEQUATELY LUBRICATED if it has been lubricated in accordance with standard or specified

lubricating orders.

(5) An item should be checked for LEAKAGE. Definitions for leakage are presented in paragraph 2-7.

b. Defects. Ensure that welds, tubing, and hoses are free of defects as described below:

(1) Check for loose or chipped paint, rust, or gaps where parts are welded together If a bad weld is found,

notify your supervisor immediately.

(2) Look for cracked, frayed, loose, or broken tubing and hoses. Repair or report unserviceable.

(3) Check for wear, damage, and leaks, and ensure that couplings and fittings are tight. Wet spots indicate

leaks, but a stain around a coupling or fitting can also mean a leak in accordance with paragraph 2-7. If

wear, damage, or leaks are found, notify your supervisor.

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c. Cleaning. When the instruction "clean" appears in a procedure, use the guidelines found in paragraph 2-6. Even

if a procedure does not specify cleaning, be aware of any buildup of dirt, grease, oil, or debris. Clean any such

buildup using cleaning agents authorized by Appendix D.

2-5.2. Specific Operator PMCS Procedures.

The specific operator's PMCS procedures are presented in Table 2-1. Always perform PMCS procedures in the order

listed, to establish a routine. If any defects are discovered while performing the PMCS procedures, perform the

appropriate troubleshooting tasks in Chapter 3, Section III.

a. Serviceability. If any component or system is not serviceable, or if a given service does not correct the

problem, notify your supervisor.

b. Intervals. The PMCS procedures in Table 2-1 are performed at specific intervals Before performing PMCS

procedures, read all checks required for the applicable interval.

c. Cleaning Materials. Cleaning agents are discussed in paragraph 2-6. Have several clean rags (item 4,

Appendix D) available when performing the PMCS procedures. All required Expendable Supplies and Materials

are listed in Appendix D.

2-5.3. Using Operator's PMCS Procedures Table. The PMCS procedures are listed In Table 2-1 and the columns in

the table are defined as follows:

a. ITEM NO. Column. A sequential item number is entered, indicating the order in which the procedures will be

performed.

b. INTERVAL Column. The time interval entered in this column, indicates how often the procedure will be

performed. A "Before" entry means that the procedure will be performed just before operating the wheels

assemblies. A "Monthly" entry means that the procedure will be performed once each month.

c. ITEM TO BE CHECKED OR SERVICED Column. The item name that appears in the Maintenance Allocation

Chart (MAC) is entered in this column.

d. PROCEDURE Column. The specific check or service instruction is entered in this column.

e. NOT FULLY MISSION CAPABLE IF: Column. The limiting condition, that prevents the item from being fully

mission capable, is entered In this column.

2-8
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Table 2-1. Preventive Maintenance Checks and Services for Ground Handling Wheels Assembly.

ITEM INTERVAL ITEM TO BE PROCEDURE NOT FULLY

NO. CHECKED OR MISSION

SERVICED CAPABLE IF:

WARNING

To prevent injury to personnel

or damage to equipment, release

all pressure from the hydraulic

pump before starting any maintenance

action. Release hydraulic pressure

by rapidly rotating the pressure

release knob counterclockwise.

NOTE

Perform these checks in the order

listed, within the designated

interval, as you inspect the

Ground Handling Wheels Assembly.

Perform the Before procedures each

time the Ground Handling Wheels

Assembly is used.

1. Before Assembly a. Check for fluid leakage or Any Class III leaks

Exterior appearance of fluid leakage.

b. Visually check for damaged Hoses are leaking or

hoses, and loose, missing or broken.

damage parts. Parts are missing or

damaged.

c. Visually Inspect the cradle The cradle has

for cracks or damage. visually apparent

cracks or damage.

d. Inspect the Quick Release Pin Quick Release Pin is

and attaching Lanyard to assure bent or broken.

that the pin is not bent, broken,

or damaged, and that it is securely

fastened to the cradle, and that

the lanyard is not frayed, broken,

or damaged.

2-9
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Table 2-1. Preventive Maintenance Checks and Services for Ground Handling Wheels Assembly.

(continued)

ITEM INTERVAL ITEM TO BE PROCEDURE NOT FULLY

NO. CHECKED OR MISSION

SERVICED CAPABLE IF:

1 Before Assembly e. Inspect the fixed pin to assure Fixed pin is bent.

(cont) Exterior that it is not bent, broken, loose,

(continued) or damaged.

f. Inspect the nose pin guard to Nose pin guard is

assure that it is not damaged or damaged, bent, or

bent, and that it is clear of the rubbing hydraulic

hydraulic fitting and the nose pin. fitting.

g. Regularly apply lubricant to all Pivot points are

pivot and rubbing points. Use a good binding, or

grade of No. 10 motor oil or grease rubbing points

Do not use dry lubricants. are deteriorating.

2 Before Tires a. Check for excessive wear, cuts, Tires are damaged

cracks, abrasions, and low or flat low, or flat.

tires.

b. Ensure that tires are Tires underinflated

inflated to proper pressure.

(50 psi (34.4 kPa) for 204;

75 psi (51.7 kPa for 214 & 1730)

NOTE

The greatest single cause of failure

in hydraulic pumps is dirt. Keep the

pump and attached equipment clean to

prevent foreign matter from entering

the hydraulic system.

3 Monthly Hydraulic Pump Check hydraulic fluid level with Fluid level low.

assembly properly installed on an

helicopter skid and the hydraulic rams

in the fully retracted position:

1. Remove reservoir cap. Cap is damaged.

2. Fluid should be level with Fluid level low.

level line in fillport.

2-10
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Table 2-1. Preventive Maintenance Checks and Services for Ground Handling Wheels Assembly.

(continued)

ITEM INTERVAL ITEM TO BE PROCEDURE NOT FULLY

NO. CHECKED OR MISSION

SERVICED CAPABLE IF:

3 Monthly Hydraulic Pump 3. If level is not OK, install Fluid level low.

(cont) (continued) reservoir cap and notify your

supervisor.

4. If fluid level is OK, install Fluid level low

reservoir cap, and complete

inspection.

WARNING

Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles and

gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes,

and DO NOT use near open flame or excessive heat. The solvent's flash point is 100°F

130°F (38°C 59°C). If you become dizzy while using cleaning solvent, immediately get

fresh air and medical help. If solvent contacts eyes, immediately flush your eyes with

clean water and get medical help.

2-6. CLEANING AGENTS.

Keeping the wheels assemblies clean is an important part of PMCS procedures. Equipment that is covered with surface

dirt, grease, and oil cannot be property inspected. Keep excess lubricants away from exterior parts that do not require

lubrication.

a. Authorization. Use only those authorized cleaning solvents or agents listed in Appendix D.

b. Application. Use a wiping rag (item 4, Appendix D) to clean grease, oil, or rust from metal parts. After parts are

cleaned, rinse with dry cleaning solvent (item 6, Appendix D) and dry thoroughly.

c. Lubrication. Apply light lubricating oil (item 5, Appendix D) to all polished metal surfaces, such as clevis pins,

to prevent rusting.

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2-7. LEAKAGE DEFINITIONS FOR OPERATOR PMCS.

The knowledge of how fluid leakage affects the status of the Ground Handling Wheels Assembly is important. Review

the classes of leaks, acceptable leaks, and unacceptable leaks discussed below.

a. Classes of Leaks. An operator must know the following types/classes of leaks in order to determine whether the

assembly is operational Learn these leakage definitions. When in doubt, notify your supervisor.

Class I Seepage of fluid, not great enough to form drops, is indicated by wetness or 

discoloration.

Class II Leakage of fluid great enough to form drops, but not great enough to cause continuous 

dripping from the item being inspected.

Class III Leakage of fluid great enough to form drops that continuously drip from the item being 

inspected.

b. Acceptable Leakage. Equipment operation is allowed with minor Class I or II leakage. Fluid levels in an

item/system, affected with such leakage, must be checked more frequently than required in PMCS When in

doubt, notify your supervisor.

c. Unacceptable Leakage. Class III leaks render the item unserviceable.

2-8. REPORTING REPAIRS.

All defects that cannot be fixed by the operator must be reported Immediately after completing PMCS. The defects are

reported on DA Form 2404, Equipment Inspection and Maintenance Worksheet.

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SECTION III OPERATION UNDER USUAL CONDITIONS

2-9. GENERAL INFORMATION FOR USUAL OPERATION.

This section contains Instructions for the safe use of the Ground Handling Wheels Assembly under usual conditions. The

instructions presented in this section include preparation for use, installing wheels assembly on helicopter, lifting the

helicopter, lowering the helicopter, and removal of wheels assembly from helicopter. Unusual operating conditions are

defined and described in Section IV of this Chapter.

2-10. PREPARATION FOR USE.

Perform all Before PMCS procedures in Table 2-1 before using the Ground Handling Wheels Assembly. The DA Form

2258, attached to the assembly, contains the checklist of items that must be accomplished before the Ground Handling

Wheels Assembly can be safely used to raise a helicopter off the ground.

2-11. INSTALLING GROUND HANDLING WHEELS ASSEMBLY ON A HELICOPTER.

The Ground Handling Wheels Assembly is installed on a helicopter as follows:

NOTE

The lifting lugs are located on the helicopter skids just aft and forward of the center of

gravity of the helicopter, to provide a "near balance" condition for ground handling

and/or moving the helicopter.

1. Position the Ground Handling Wheels Assembly over the helicopter skid tube, and insert the nose pin into

rear lifting lug.

2. Rotate the cradle downward until the forward helicopter lifting lug is fully seated in the rear cradle clevis.

3. Press and hold in the locking button of the quick release pin. Insert the pin into the cradle making sure the

pin passes through both sides of the rear clevis and the helicopter lifting lug. When locking balls are

visible, release the locking button.

2-12. LIFTING THE HELICOPTER FOR GROUND HANDLING.

The Ground Handling Wheels Assembly is used to lift the helicopter as follows:

WARNING

Grip only the pump handle when operating the hand pump. Never operate the hydraulic

pump without the metering valve installed in the pump outlet. This valve controls the

rate of descent when lowering a helicopter after use Lack of a metering valve could cause

damage to the helicopter and/or injury to personnel.

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CAUTION

To ensure even lifting and prevent damaging torque to helicopter skids, both Ground

Handling Wheels Assemblies should be operated at the same time by two ground

operators.

1. Turn the hydraulic release valve knobs clockwise to a closed (seated) position on each wheels assembly

2. Simultaneously work the pump handles up and down to build hydraulic pressure.

3. Continue pumping the handles until the hydraulic rams start to rotate the eccentric axles.

4. Constantly check that the movement of both skids is even as they are lifted.

5. Continue lifting the helicopter until the skids are off the ground an equal amount.

2-13. LOWERING THE HELICOPTER.

The Ground Handling Wheels Assembly is used to lower the helicopter as follows'

WARNING

Ensure that no personnel or obstructions are under helicopter skids prior to lowering.

Do not attempt to use the pressure release knob to control descent of the helicopter.

This may prevent the metering valve from activating and could cause damage to the

helicopter and/or injury to personnel.

CAUTION

To ensure even lowering and prevent damaging torque to helicopter skids, both Ground

Handling Wheels Assemblies should be operated at the same time by two ground

operators.

1. Clear non-essential personnel from the area and announce that the helicopter is to be lowered.

2. Using two operators, simultaneously and rapidly turn the control valve release knobs counter clockwise.

3. Verify that both skids are firmly resting on the ground.

4. If descent of skids was not equal, there may be a defective metering valve installed In one of the wheels

assemblies. Troubleshoot in accordance with procedures in Chapter 3, Section III.

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2-14. REMOVING GROUND HANDLING WHEELS ASSEMBLY FROM A HELICOPTER.

The Ground Handling Wheels Assembly is removed from the helicopter as follows:

1. Ensure that the helicopter skids are firmly on the ground.

2. Verify that control valve release knob is in fully counter clockwise and that there is no hydraulic pressure in

the system.

3. Press and hold the quick release pin locking button.

4. Remove the quick release pin from the rear cradle clevis and helicopter lifting lug

5. Rotate the Ground Handling Wheels Assembly upward to disengage the nose pin

6. Remove the Ground Handling Wheels Assembly to the storage area

2-15
TM 1-1730-232-13&P

SECTION IV OPERATION UNDER UNUSUAL CONDITIONS

2-15. GENERAL INFORMATION FOR UNUSUAL OPERATION.

This section contains instructions for safely operating the Ground Handling Wheels Assembly under unusual conditions

Special care must be taken to keep the Ground Handling Wheels Assembly operational in extreme temperatures and

other environmental conditions. The instructions presented In this section include operation in dust or sand, snow or

mud, salt air or sea spray, and emergency conditions.

2-16. OPERATION IN DUSTY OR SANDY AREAS OR EXTREME DRY HEAT.

Operation of the Ground Handling Wheels Assembly in dust, sand, or extremely dry heat is as follows:

a. Protection. Place a protective cover over the assembly when not in use, to prevent dust or sand from getting

into the assembly.

b. Lubrication. Wipe clean, and properly lubricate the hydraulic rams clevis, hydraulic pump handle pivot pins,

hydraulic pump piston assembly, and axles more often.

c. Fluid Change. Change hydraulic fluid more often and maintain the proper hydraulic fluid level.

d. Notification and Authorization. Notify your supervisor for authorization before lubricating or changing fluid

more frequently than normal.

2-17. OPERATION IN EXTREME COLD, SNOW, OR MUD.

Operation of the Ground Handling Wheels Assembly in snow, mud, or extreme cold is as follows:

a. Protection. Place a protective cover over the assembly when not in use, to prevent snow or mud from getting

into the assembly.

b. Lubrication. Wipe clean, and properly lubricate the hydraulic rams clevis, hydraulic pump handle pivot pins,

hydraulic pump piston assembly, and axles more often.

c. Fluid Change. Change hydraulic fluid more often and maintain the proper hydraulic fluid level.

d. Notification and Authorization. Notify your supervisor for authorization before lubricating or changing fluid

more frequently than normal.

2-18. OPERATION IN SALT AIR OR SEA SPRAY.

Operation of the Ground Handling Wheels Assembly in salt air or sea spray is as follows:

a. Corrosion. Operations in salt air and sea spray can be damaging to the unit due to corrosive effects of

saltwater. The wheels should be removed and inspected more often.

Be particularly aware of the potential for rust.

b. Contamination. Check regularly for water in the hydraulic fluid.

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TM 1-1730-232-13&P

c. Lubrication. Wipe clean, and properly lubricate the hydraulic rams clevis, hydraulic pump handle pivot pins,

hydraulic pump piston assembly, and axles more often

d. Notification and Authorization. Notify your Supervisor for authorization before lubricating or changing fluid

more frequently than normal or to have the wheels removed and the axles cleaned and lubricated more often.

2-19. EMERGENCY OPERATIONS.

a. Minor Damage. In an emergency, the Ground Handling Wheels Assembly can be used with minor damage to

the cradle, and other hardware.

b. Major Damage. The Ground Handling Wheels Assembly cannot be used, even in an emergency, if the pump is

leaking, hydraulic rams are leaking, wheels are distorted, or tires are flat or leaking air.

c. Nose Pin and Quick Release Pin Damage. The Ground Handling Wheels Assembly cannot be used, even in

an emergency, if the nose pin or quick release pin is damaged.

2-17 /(2-18 blank)
TM 1-1730-232-13&P

CHAPTER 3

AVIATION UNIT MAINTENANCE (AVUM) INSTRUCTIONS

SECTION I

AVUM REPAIR PARTS AND SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT

3-1. COMMON TOOLS AND EQUIPMENT (AVUM).

For authorized common tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE),

CTA 50-970 or CTA 8-100, as applicable to your unit. The following common tool kits are required to support the

Ground Handling Wheels Assembly at the Aviation Unit Maintenance (AVUM) level.

Tool Number Nomenclature NSN

SC 5180-99-A01 Tool Kit, General Mechanics 5180-00-323-4692

SC 4920-99-A92 Tool Set, AVUM 4920-00-567-0476

3-2. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT (AVUM).

No special tools, TMDE, or support equipment are required to maintain the Ground Handling Wheels Assembly at

the Aviation Unit Maintenance Level.

3-3. REPAIR PARTS (AVUM).

The repair parts are listed and illustrated in the Repair Parts and Special Tools List (RPSTL), in Appendix C.

3-1
TM 1-1730-232-13&P

SECTION II

AVUM SERVICE UPON RECEIPT

3-4. INSPECTION UPON RECEIPT (AVUM).

The following inspections shall be performed upon receipt of the Ground Handling Wheels Assembly.

a. Check the equipment against the packing list, to ensure that the assembly is complete. Report all

DISCREPANCIES in accordance with the instructions of DA Pam 738-750, or DA Pam 738-751 as applicable

b. Inspect the assembly for any damage incurred during shipping Report any defects immediately on SF 364,

Report of Discrepancy.

c. Perform all "Before" operation checks in accordance with Chapter 2, Section II, Table 2-1, Preventive

Maintenance Checks and Services for Ground Handling Wheels Assembly.

CAUTION

The Ground Handling Wheels Assembly is shipped from the manufacturer fully

lubricated. The hydraulic pump was filled to the proper level with the correct type and

grade of hydraulic fluid (item 1, Appendix D). Ensure that the following preliminary

servicing and lubrication is performed upon receipt.

3-5. PRELIMINARY SERVICING AND LUBRICATION (AVUM).

The following preliminary servicing and lubrication shall be performed upon receipt of the Ground Handling Wheels

Assembly.

3-5.1. Service. The hydraulic fluid level and tire pressure must be checked before the Wheels Assembly can be

operated. Refer to Chapter 2, Section II, Table 2-1, Preventive Maintenance Checks and Services for Ground Handling

Wheels Assembly, to perform the following checks.

1. Check the hydraulic fluid level and service as necessary.

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure

wheel locknuts are tightened to specifications. An assembly with missing washers, bolts,

nuts or improperly tightened locknuts could separate under pressure, causing serious

injury or death.

2. Check air pressure with tire pressure gauge and inflate or deflate tires to proper pressure. Proper pressure

is 50 psi (34 5 kPa) for Model 204, and 75 psi (51.7 kPa) for Model 214 and Model 1730.

3-2
TM 1-1730-232-13&P

3-5.2. Lubrication. Grease fittings are installed on the two ram clevis pins and at all point requiring lubrication on the

cradle assembly. Check all lubrication points and use a grease gun to lubricate any points that appear dry.

3-6. OPERATIONAL TEST (AVUM).

The Ground Handling Wheels Assembly is inspected and serviced upon receipt. After inspection and servicing, perform

an operational test in accordance with procedures In Chapter 2, Section III, Operation Under Usual Conditions.

3-3
TM 1-1730-232-13&P

SECTION III

AVUM PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

3-7. GENERAL PMCS INFORMATION (AVUM).

The Preventive Maintenance Checks and Services (PMCS) procedures are performed on a regular basis at the AVUM

level, to ensure operational readiness of the Ground Handling Wheels Assembly. Defects should be found before they

result In serious damage, equipment failure, or personnel injury. Systematic instructions presented in this section, allow

the operator to perform Inspections, adjustments, and corrections. The AVIM level may perform all AVUM level PMCS

procedures.

3-8. PMCS PROCEDURES (AVUM).

The general and specific AVUM PMCS procedures, and directions for using the procedures, are presented in the

following paragraphs.

3-8.1. General PMCS Procedures (AVUM). General rules to follow while performing specific AVUM PMCS procedures

are as follows:

a. Safety. Observe all WARNINGS and CAUTIONS while performing AVUM PMCS procedures Ensure that Items

are correctly assembled, secured, serviceable, adequately lubricated, and not worn or leaking.

(1) An item is CORRECTLY ASSEMBLED when all parts are present and in proper position.

(2) Wires, nuts, hoses, fittings, or attaching hardware are SECURE when they cannot be easily removed by

hand or wrench.

(3) An Item is SERVICEABLE if it is not worn beyond repair or likely to fail before the next scheduled

inspection.

(4) An item is ADEQUATELY LUBRICATED if it has been lubricated in accordance with standard or specified

lubricating orders.

(5) An Item should be checked for LEAKAGE. Definitions for leakage are presented in paragraph 3-10.

b. Defects. Ensure that welds, tubing, and hoses are free of defects as described below:.

(1) Check for loose or chipped paint, rust, or gaps where parts are welded together. If a bad weld is found,

notify your supervisor immediately

(2) Look for cracked, frayed, loose, or broken hose assemblies. Replace or report an unserviceable hose

assembly.

(3) Check for wear, damage, and leaks. Ensure that couplings and fittings are tight. Wet spots indicate leaks,

but a stain around a coupling or fitting can also mean a leak in accordance with paragraph 3-10 If wear,

damage, or leaks are found, notify supervisor.

3-4
TM 1-1730-232-13&P

c. Cleaning. When the instruction "clean” appears in a procedure, use the guidelines found in paragraph 3-9.

Even if a procedure does not specify cleaning, be aware of any buildup of dirt, grease, oil, or debris. Clean any such

buildup using cleaning agents authorized by Appendix D.

NOTE

The AVUM shall perform the General PMCS procedures upon completion of any unscheduled

maintenance tasks and before returning the assembly to inventory or operation.

3-8.2 Specific PMCS Procedures (AVUM). The specific AVUM PMCS procedures are presented in Table 3-1. Always

perform AVUM PMCS procedures in the order listed, to establish a routine. If any defects are discovered while

performing the PMCS procedures, perform the appropriate troubleshooting tasks In Chapter 3, Section III.

a. Serviceability. If any component or system is not serviceable, or if a given service does not correct the

problem, notify your supervisor.

b. Intervals. The AVUM PMCS procedures in Table 3-1 are performed at three intervals: Quarterly, Semiannually,

and Hours. Before performing AVUM PMCS procedures, read all checks required for the applicable interval.

c. Cleaning Material. Cleaning agents are discussed in paragraph 3-9. Have several clean rags (item 4, Appendix

D) available when performing the AVUM PMCS procedures. All required Expendable Supplies and Materials are listed in

Appendix D.

3-8.3 Using AVUM PMCS Procedures Table. The AVUM PMCS procedures are listed in Table 3-1 and the columns in

the table are defined as follows:

a. ITEM NO. Column. A sequential item number is entered, indicating the logical order in which the AVUM PMCS

procedures will be performed. It is also used as a source number when recording PMCS results on DA Form 2404,

Equipment Inspection and Maintenance Worksheet.

b. INTERVAL Column. The time interval entered in this column, specifies how often the AVUM PMCS procedure

will be performed. A 'Quarterly" entry means that the procedure will be performed every three months A "Semiannually"

entry means that the procedure will be performed every six months. An "Hours" entry means that the procedure will be

performed when the number of specified operating hours are accumulated, since the last time the procedure was

performed.

c. ITEM TO BE CHECKED OR SERVICED Column. The item name that appears in the Maintenance Allocation

Chart (MAC) is entered in this column.

d. PROCEDURE Column. The specific check or service instruction is entered in this column. The maintenance

procedure may direct personnel to inspect, service, replace, or repair an item.

e. NOT FULLY MISSION CAPABLE IF: Column. The limiting condition, that prevents the item from being fully

mission capable, is entered in this column.

3-5
TM 1-1730-230-13&P

Table 3-1. AVUM Preventive Maintenance Checks and Services

for Ground Handling Wheels Assembly.

ITEM INTERVAL ITEM TO BE PROCEDURE NOT FULLY

NO. CHECKED OR MISSION

SERVICED CAPABLE IF:

1 36 MONTHS HYDRAULIC SERVICE FLUID RESERVOIR Fluid reservoir is cracked

PUMP and leaking.

WARNING

To prevent injury to personnel or

damage to equipment, all pressure must be

released from the pump before staring any

maintenance action

CAUTION

To prevent contamination from entering

the pump, the exterior of the pump should be

cleaned before beginning this procedure.

NOTE

Refer to Figure 3-1 for parts identification.

36 MONTHS 1. Drain pump reservoir of Hydraulic fluid is

hydraulic fluid. contaminated.

a. Remove hydraulic pressure by rapidly Control valve is defective.

turning control valve pressure release knob

counterclockwise.

b. Remove filler cap (1) and packing ring (2). Cap or ring damaged.

c. Stand Wheel Assembly on end, with the Rams do not fully retract

pump filler hole down. to drain fluid from the

pump. Rotate axle to assure that the rams

are fully retracted

d. Disconnect hoses (3) from tees and drain Hoses or rams damaged

the hoses and hydraulic rams on both sides

of the pump Ensure hydraulic rams are fully

retracted

e. Reinstall hoses (3). Hose is defective.

3-6
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Table 3-1. AVUM Preventive Maintenance Checks and Services

for Ground Handling Wheels Assembly.

(continued)

ITEM INTERVAL ITEM TO BE PROCEDURE NOT FULLY

NO. CHECKED OR MISSION

SERVICED CAPABLE IF:

1 36 MONTHS HYDRAULIC SERVICE FLUID RESERVOIR Fluid reservoir is cracked

continued PUMP and leaking

f. Remove nut (4) located on the end of the. Nut, pump body, or packing

pump and separate pump body (5), and

packing ring (6) ring damaged

from reservoir (7).

g. Clean fluid filter (8), and reservoir (7), Filter is dogged

with nonflammable cleaning fluid

h. Reassemble pump with new packing rings (6) Packing rings leak

and (2)

i. Drain and clean the other hydraulic system Hoses, rams, or fittings

components (hoses, hydraulic rams, fittings) damaged or contaminated

before reconnecting them to the pump

36 MONTHS 2. Fill pump reservoir Fluid leaks from reservoir

with hydraulic fluid.

(Item 1, Appendix D)

CAUTION

The reservoir is protected by a gasket in the

filler cap, which will extrude and blow if more

oil is contained in the system than the

reservoir can handle. To prevent damage

to the reservoir gasket, the rams must be

fully retracted before refilling the reservoir

a. Fully retract hydraulic rams. Rams won't fully retract

b. Clean the entire area around filler cap Area around filter cap

damaged

c. Insert a clean funnel and filter into the Fluid is not filled to proper

filler hole Add MIL-H-5606 fluid to the level level

indicated in Figure 3-1

3-7
TM 1-1730-232-13&P

Figure 3-1. GROUND HANDLING WHEELS ASSEMBLY (TYPICAL)

3-8
TM 1-1730-232-13&P

WARNING

Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles and

gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and clothes, and

DO NOT use near open flame or excessive heat. The solvent's flash point is 100°F 130°F

(38°C-59°C). If you become dizzy while using cleaning solvent, immediately get fresh air and

medical help. If solvent contacts eyes, Immediately flush your eyes with clean water and get

medical help.

3-9. CLEANING AGENTS (AVUM).

Keeping the wheels assemblies clean is an Important part of PMCS procedures. Equipment that is covered with surface

dirt, grease, and oil cannot be properly inspected. Keep excess lubricants away from exterior parts that do not require

lubrication.

a. Authorization. Use only those authorized cleaning solvents or agents listed in Appendix D

b. Application. Use a wiping rag (item 4, Appendix D) to clean grease, oil, or rust from metal parts. After parts are

cleaned, rinse with dry cleaning solvent (item 6, Appendix D) and dry thoroughly.

c. Lubrication. Apply light lubricating oil (item 5, Appendix D) to all polished metal surfaces, such as clevis pins,

to prevent rusting.

3-10. LEAKAGE DEFINITIONS (AVUM).

The knowledge of how fluid leakage affects the status of the Ground Handling Wheels Assembly is important. Review

the classes of leaks, acceptable leaks, and unacceptable leaks discussed below

a. Classes of Leaks. An operator must know the following classes of leaks, in order to determine whether the

assembly is operational. Learn these leakage definitions. When in doubt, notify your supervisor

Class I Seepage of fluid, not great enough to form drops, Is indicated by wetness or 

discoloration.

Class II Leakage of fluid great enough to form drops, but not great enough to cause 

continuous dripping from the item being inspected.

Class III Leakage of fluid great enough to form drops that continuously drip from the item 

being inspected.

b. Acceptable Leakage. Equipment operation is allowed with minor Class I or II leakage. Fluid levels in an

item/system, affected with such leakage, must be checked more frequently than required in PMCS. When in doubt,

notify your supervisor.

c. Unacceptable Leakage. Class III leaks render the item unserviceable and must be reported to your supervisor

immediately.

3-11. REPORTING REPAIRS (AVUM). All defects found while performing AVUM PMCS procedures shall be reported

on DA Form 2404, Equipment Inspection and Maintenance Worksheet, immediately after completing PMCS. All defects

shall be reported before taking corrective action, and shall be entered in the equipment log.

3-9
TM 1-1730-232-13&P

SECTION IV

AVUM TROUBLESHOOTING

3-12. INTRODUCTION TO TROUBLESHOOTING (AVUM).

The information required to identify and correct most mechanical malfunctions, which may occur on the Ground Handling

Wheels Assembly, is contained in this section. Component replacement is referenced to Maintenance Section V of this

chapter, but component repair is referenced to Chapter 4, Section V, unless otherwise noted. Refer to Chapter 2 for a

better understanding of how a system operates. If the location of an Item mentioned in troubleshooting IS unknown, see

illustrated parts breakdown in Appendix C. The AVUM troubleshooting procedures are provided in Table 3-2.

3-13. TROUBLESHOOTING PROCEDURES (AVUM).

The AVUM troubleshooting procedures in Table 3-2 contain checks and corrective actions required to isolate defects

which can be corrected by performance of maintenance allocated to AVUM, by the Maintenance Allocation Chart (MAC).

3-10
TM 1-1730-232-13&P

Table 3-2. TROUBLESHOOTING PROCEDURES

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. PUMP NOT DELIVERING OIL

Step 1. Inspect for low oil level in reservoir.

Check oil level, and fill reservoir as necessary

Step 2. Inspect for dirt in pump body.

Disassemble pump body and clean all parts. Refer to Chapter 4, AVIM.

Step 3. Inspect for worn seats and proper seating.

Replace worn seats or reseat seats in casting. Refer to Chapter 4, AVIM.

Step 4 Inspect for overfilled reservoir.

Drain excess oil from reservoir.

2. PUMP LOSING PRESSURE

Step 1. Inspect for oil leaking past outlet ball seats.

Reseat and/or replace balls and seats. Refer to Chapter 4, AVIM.

Step 2. Inspect for oil leaking past unloading valve piston. Refer to Chapter 4, AVIM.

Replace o-ring on valve unloading piston. Refer to Chapter 4, AVIM.

Step 3. Check for loose connections.

Tighten connections as necessary.

Step 4. Check two-way valve for leaks or correct adjustment.

Reseat/replace ball check; adjust two-way valve handle. Refer to Chapter 4, AVIM.

3. PUMP DOES NOT REACH FULL PRESSURE

Step 1. Check for low oil level.

Fill reservoir as necessary

3-11
TM 1-1730-232-13&P

Table 3-2. TROUBLESHOOTING PROCEDURES (cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

3. PUMP DOES NOT REACH FULL PRESSURE (cont)

Step 2. Check if relief valve is set too low.

Test pump. Refer to Chapter 4, AVIM.

If test fails, replace pump. Refer to para. 3-15.4.

Step 3. Check for oil leaking past unloading valve piston.

Replace o-ring on valve unloading piston. Refer to Chapter 4, AVIM.

4. PUMP HANDLE RISES AFTER EACH STROKE

Step 1. Check for oil leaking past outlet ball seats.

Check for dirt, replace ball and/or reseat valve. Refer to Chapter 4, AVIM.

5. PUMP HANDLE CAN BE PUSHED DOWN (SLOWLY) WITHOUT RAISING THE LOAD

Step 1 Check rf inlet ball is not seating

Check for dirt, replace ball and/or reseat valve. Refer to Chapter 4, AVIM.

Step 2. Check for damaged piston assembly.

Replace piston assembly. Refer to Chapter 4, AVIM.

Step 3. Check for scored cylinder wall or pump body.

Replace pump body and assembly. Refer to Chapter 4, AVIM.

6. PUMP HANDLE OPERATES WITH SPONGY ACTION.

Step 1. Check for air trapped in the system.

Bleed hydraulic system.

Step 2. Check for too much oil in reservoir.

Check oil level and drain oil as necessary.

3-12
TM 1-1730-232-13&P

Table 3-2. TROUBLESHOOTING PROCEDURES (cont)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

7. WHEEL DOES NOT TURN EASILY.

Step 1. Check for tire rubbing hydraulic hose.

Reposition hydraulic hose.

Step 2. Check for binding wheel bearing.

Replace wheel bearing. Refer to para. 3-15.7 (Model 204), 3-16.7 (Model 214), or 3-

17.7 (Model 1730)

Step 3. Check for bent wheel assembly.

Replace wheel assembly. Refer to para. 3-15.6 (Model 204), 3-16.6 (Model 214), or 3-

17.6 (Model 1730).

8. HYDRAULIC RAM LEAKING.

Step 1. Check for loose fitting.

Tighten fitting.

Step 2. Check for leakage around ram piston.

Replace hydraulic ram. Refer to para. 3-15.5 (Model 204), 3-16.5 (Model 214), or 3-

17.5 (Model 1730).

9. CRADLE AXLE BINDING.

Step 1. Check for left bent axle.

Replace left axle half. Refer to Chapter 4, AVIM.

Step 2. Check for right bent axle.

Replace right axle half. Refer to Chapter 4, AVIM.

Step 3. Check for broken clevis or clevis pin.

Replace broken clevis or clevis pin. Refer to para. 3-15.5 (Model 204), 3-16.5 (Model

214), or 3-17.5 (Model 1730).

3-13
TM 1-1730-232-13&P

SECTION V

AVUM MAINTENANCE PROCEDURES

3-14. INTRODUCTION TO MAINTENANCE PROCEDURES (AVUM).

This section provides inspection, replacement and repair procedures for the Ground Handling Wheels Assembly, at the

Aviation Unit Maintenance (AVUM) level, authorized by the Maintenance Allocation Chart (MAC) provided in Appendix B.

A model number is included with the title of a procedure, unless the procedure applies to all models covered In this

manual. Defective items discovered during inspection, are replaced at AVUM level and repaired at AVIM level, unless

otherwise noted. The Repair Parts and Special Tools List (RPSTL), in Appendix C, may be referenced to aid in

identifying assemblies and component parts.

3-15. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 204-050-200-5 (AVUM).

The Ground Handling Wheels Assembly is group number 00 in the MAC. Maintenance performed on Ground Handling

Wheels Assembly, Model 204-050-200-5, at the AVUM level, consists of inspection, replacement and repair procedures.

Inspection procedures are presented for the hydraulic system, cradle assembly, and wheel assembly. Replacement

procedures are presented for the hydraulic pump assembly, hydraulic ram assembly, and wheel assembly Repair

procedures for the wheel assembly are presented In this section, but repair procedures for the hydraulic pump assembly

and cradle assembly are contained in Chapter 4, Section V Refer to Appendix C, Figure C-1-1, to identify assemblies of

Ground Handling Wheels Assembly, Model 204-050-200-5.

3-15.1 Hydraulic System Inspection, Model 204-050200-5 (AVUM) .

The Hydraulic System is group number 01 in the MAC, and consists of a hydraulic pump assembly, two hydraulic ram

assemblies, two hydraulic hoses, and connection fittings. This procedure is applicable to Ground Handling Wheels

Assembly, Model 204-050-200-5. The numbers in parenthesis refer to accompanying figure 3-2. Inspect the hydraulic

system as follows:

1. Check hydraulic hose assemblies (8 or 9) and fittings (27 & 28) for leakage. If a hose assembly or 

fitting is leaking, tighten; if defective, replace defective components.

2. Check hydraulic rams (6) for leakage. If a hydraulic ram assembly is leaking, tighten hose (8 or 

9) or fitting (27 or 28); if defective, replace hydraulic ram using procedures in paragraph 3-15.5.

NOTE

Two types of hydraulic pump may be Installed on this model of the Ground Handling Wheels

Assembly. The older version pump with part number BU0953B is not repairable and will be

replaced by pump with part number 61780 upon failure. The pump with part number 61780 is

repairable.

3. Check hydraulic pump (4 or 5) for damage and leaks. If pump is leaking, tighten connections; if 

defective, replace hydraulic pump using procedures in paragraph 3-15.4.

4. Check hydraulic system components for cleanliness. If a component is dirty, wipe clean with dry 

cleaning solvent (item 6, Appendix D). Observe all WARNINGS relative to the use of cleaning agents.

END OF TASK

3-14
TM 1-1730-232-13&P

Figure 3-2. Ground Handling Wheels Assembly, Model 204-050-200-5

3-15
TM 1-1730-232-13&P

3-15.2 Cradle Assembly Inspection, Model 204-050-200-5 (AVUM).

The Cradle Assembly is group number 02 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 204-050-200-5 The numbers in parenthesis refer to figure 3-3. Inspect the cradle assembly as follows:

Figure 3-3. Cradle Assembly for Model 204-050-200-5

1. Check for broken, bent, cracked, or damaged cradle assembly (1). If cradle assembly is damaged, return the Ground

Handling Wheels Assembly to AVIM for repair.

2. Check for broken, bent, cracked, or damaged axles assemblies (2 & 3). If an axle assembly is damaged, return the

Ground Handling Wheels Assembly to AVIM for repair.

3. Check for loose, bent, worn, or broken fixed support (nose) pin (22). If nose pin is damaged, return the Ground

Handling Wheels Assembly to AVIM for repair.

4. Check for loose, bent, worn, or broken rear support pin (5). If rear support pin is damaged, return the Ground

Handling Wheels Assembly to AVIM for repair.

END OF TASK

3-16
TM 1-1730-232-13&P

3-15.3 Wheel Assembly Inspection, Model 204-050-200-5 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 204-050-200-5 The numbers in parenthesis refer to figure 3-4 Inspect the wheel assembly as follows:

Figure 3-4. Wheel Assembly for Model 204-050-200-5

1. Check for cracked rims (1 & 2) and missing parts (5, 6, 7) on wheel assembly. If damaged, replace wheel assembly

using procedures in paragraph 3-15.6 or repair wheel assembly using procedures in paragraph 3-15.7. Replace any

missing parts.

2. Check for cut, worn, or frayed tires (3). If a tire is defective, replace wheel assembly using procedures in paragraph 3-

15.6 or repair wheel assembly using procedures in paragraph 3-15.7.

3. Check for grease leaking from wheel assembly bearing packing retainers (4 or 5). If leaking grease, replace wheel

assembly using procedures in paragraph 3-15.6 or repair wheel assembly using procedures in paragraph 3-15.7.

4. Check that wheel rotates freely on axle. If wheel rotation is sluggish, replace wheel assembly using procedures in

paragraph 3-15.6 or repair wheel assembly using procedures in paragraph 3-15.7.

5. Check tire air pressure with tire pressure gauge for 50 psi (34.5 kPa). Inflate if necessary, using available air source

or deflate to proper pressure.

END OF TASK

3-17
TM 1-1730-232-13&P

3-15.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

The Hydraulic Pump Assembly is group number 0101 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 204-050-200-5. Two types of hydraulic pump may be installed on this model of Ground

Handling Wheels Assembly. The older version pump has part number BU0953B and is not repairable The new version

pump has part number 61780 and is repairable. An older version pump that is defective, will be replaced with the new

version upon failure An older version pump, that is removed as part of a disassembly procedure, may be reinstalled if not

defective. The numbers in parenthesis refer to accompanying illustration.

This task covers:

a. Removal b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Materials

Teflon Tape........................................................P/N MIL-T-27730

Repair Parts

Pump, Hydraulic.................................................P/N 61780

Personnel Required

MOS 67

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the

hydraulic pump before starting any maintenance action. Release hydraulic pressure by

rapidly rotating the pressure release knob counterclockwise.

GO TO NEXT PAGE

3-18
TM 1-1730-232-13&P

3-15.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

A. REMOVE

Remove a Hydraulic Pump as follows:

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the release valve knob counterclockwise

3. Disconnect both hose assemblies from tee fitting (27) installed In pump metering valve and, drain fluid into

drip pan.

4. Remove tee fitting (27) from reducer/metering valve in pump, and retain for Installation In replacement

pump.

5. Remove hydraulic pump (5), with part number BU0953B, using following steps

a. Remove four nuts (16) and four washers (17) from the U-bolts (18 & 19).

b. Remove two U-bolts (18 & 19) and plate spacer (20).

c. Grasp pump (5) and lift from cradle assembly (10).

d. If pump was removed as part of a disassembly procedure, retain pump and attaching hardware for

reinstallation

e. If pump was removed because it is defective, send to AVIM for disposal, replace with hydraulic pump

part number 61780.

Figure 3-5. Hydraulic Pump, Part No BU0953B

GO TO NEXT PAGE

3-19
TM 1-1730-232-13&P

3-15.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

6. Remove hydraulic pump (4), with part number 61780, using following steps.

a. Remove two nuts (16) and washers (17) from U-bolt (18).

b. Remove U-bolt (18).

c. Remove two nuts (26), washers (17), and bolts (25).

d. Grasp pump (4) and lift from cradle assembly (10).

e. If pump was removed as part of a disassembly procedure, retain pump and attaching hardware for

reinstallation.

f. If pump was removed because it Is defective, send to AVIM for repair. See Chapter 4, Section V,

paragraph 4-15.1.

Figure 3-6. Hydraulic Pump, Part No. 61780

GO TO NEXT PAGE

3-20
TM 1-1730-232-13&P

3-154.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

NOTE

Only hydraulic pump assembly with part number 61780 can be used to replace either defective

pump removed above. A mounting plate and hydraulic fitting guard are already Installed on

the replacement pump assembly

B. INSTALL

Install a hydraulic pump as follows:

1. Refer to figure3-6 and install Hydraulic Pump (4), with part number 61780.

a. Position hydraulic pump (4) on cradle assembly (10) and align mounting holes

b. Insert bolts (25) through holes in pump mounting plate and hydraulic fitting guard; attach with washers (17)

and nuts (26).

c. Install bolt (18) over pump (4) body and insert through holes in cradle, attach with washers (17) and nuts

(16).

d. Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), In reducer/metering valve in pump.

e. Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this time.

Ensure that hoses do not rub on wheels.

f. Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C below..

NOTE

If an older version pump (BU0953B) was removed as part of a disassembly procedure, it will be reinstalled using

following procedure.

2. Refer to figure 3-5 and install Hydraulic Pump (5), with part number BU0953B.

a. Position hydraulic pump (5) on cradle assembly (10) until It is centered over four mounting holes in cradle.

b. Install spacer (20) under pump at front, install U-bolt (19) over pump body (5) and insert through holes in

spacer and cradle; attach U-bolt with washers (17) and nuts (16).

c. Install bolt (18) over pump body (5) and insert through holes in cradle; install washers (17) and nuts (16).

d. Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), in reducer/metering valve in pump.

e. Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this time.

Ensure that hoses do not rub on wheels.

f. Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C below.

GO TO NEXT PAGE

3-21
TM 1-1730-232-13&P

3-154.4 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

C. SERVICE

Refer to figure 3-5 or 3-6 and perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses at tee (27).

2. Rotate axles until hydraulic rams are fully retracted.

3. Tighten flared nuts on hoses at tee (27); check fluid level in pump.

4. Refill pump with fluid if necessary, and install cap.

5. Rotate the pump release valve knob clockwise.

6. Activate pump until axles are fully extended.

7. Release hydraulic pressure from system by rapidly rotating the release valve knob counterclockwise.

8. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

9. If fluid level Is Incorrect, repeat steps 1 through 7; if fluid level Is correct, Install cap and gasket; procedure is

completed.

END OF TASK

3-22
TM 1-1730-232-13&P

3-15.5 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

The Hydraulic Ram Assembly is group number 0102 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 204-050-200-5. The Hydraulic Ram Assembly is non-repairable and is discarded upon failure.

The numbers in parenthesis refer to figure 3-7.

This task covers:

a. Removal b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Repair Parts

Ram Assembly, Hydraulic ..................................P/N 3040-UH1-155

Personnel Required

MOS 67

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the

hydraulic pump before starting any maintenance action. Release hydraulic pressure by

rapidly rotating the pressure release knob counterclockwise.

A. REMOVE

Refer to figure 3-7 and remove the Hydraulic Ram Assembly as follows:

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the pump release valve knob counterclockwise.

3. Remove Wheel assembly.

a. Remove cotter pin (1).

b. Remove castle nut (2), and retainer (3).

c. Remove wheel assembly (4) from axle hub (5).

GO TO NEXT PAGE

3-23
TM 1-1730-232-13&P

3-15.5 Hydraulic Pump Replacement, Model 204-050-200-5 (AVUM)-Continued

A. REMOVE - Continued

NOTE

Both devises must be disconnected in next step

4. Disconnect hydraulic ram clevis by removing cotter pin (6), two flat washers (7), and clevis pin (8) Retain parts

for connecting replacement ram clevis

5. Rotate axle to see clevis set screw (9) and loosen set screw.

6. Rotate axle to clear clevis, unthread clevis (10) from hydraulic ram piston (17), and retain clevis for installation in

replacement ram

7. Disconnect hose assembly (15) from elbow (16) installed in ram assembly (11) and drain fluid into drip pan.

8. Remove elbow (16) from ram assembly (11) and retain for installation in replacement ram.

9. Remove setscrew (13) from trunnion (14), and retain for installation of replacement ram.

10. Unscrew ram assembly (11) from trunnion (14).

11. Install new ram assembly in accordance with B below.

Figure 3-7. Hydraulic Ram Assembly, Model 204-050-200-5

GO TO NEXT PAGE

3-24
TM 1-1730-232-13&P

3-15.5 Hydraulic Ram Replacement, Model 204-050-200-5 (AVUM) - Continued

B. INSTALL

Refer to figure 3-7 and install the Hydraulic Ram Assembly as follows:

1. Arrange replacement ram assembly and attaching parts retained during removal.

2. Thread ram assembly (11) into trunnion (14) until It bottoms out, back off until the hydraulic Inlet hole

is facing outward from the cradle and slightly above parallel with the trunnion.

CAUTION

Over tightening the ram assembly setscrew can prevent the ram from operating properly.

3. Install the ram assembly setscrew (13), and only tighten until snug.

4. Thread clevis (10) into the hydraulic ram piston (17) and fully extend the ram.

NOTE

To ensure proper operation, the clevis must be threaded into ram piston until distance from

trunnion to centerline of hole in clevis Is 3.915 inches (9.94 cm). The clevis should be configured

with the long length of slot facing up and the short side facing down.

5. Measure the distance from the face of trunnion (14) (inboard side) to centerline of holes in clevis (10),

measurement should be 3.915 inches (9 94 cm) when piston in bottomed In ram.

CAUTION

Over tightening the ram assembly setscrew can crack or dent Interior surface of hollow piston

shaft and prevent the ram from operating properly.

NOTE

If measurement is incorrect, the clevis to piston relationship must be adjusted. To maintain clevis

configuration, the ram piston is rotated rather than the clevis, until proper measurement is

attained.

6. Hold clevis (10) and rotate ram piston (17) until 3.915 inches (9 94 cm) measurement is achieved;

tighten the clevis setscrew (13).

7. Rotate the axle down and align each clevis with an axle arm.

GO TO NEXT PAGE

3-25
TM 1-1730-232-13&P

3-15.5 Hydraulic Ram Replacement, Model 204-050-200-5 (AVUM) - Continued

WARNING

Operator injury or death and equipment damage may occur if the clevis pin mandatory

configuration is not implemented. Mandatory configuration requires one washer (7) under head of

clevis pin (8) and one on other end of clevis pin (8), between clevis and cotter pin (6). A fracture or

stress of clevis pin may occur under hoses helical weighted load.

8. Connect ram clevis (10) to arm on axle (5) as follows:

a. Install a washer (7) on head end of clevis pin (8).

b. Insert clevis pin (8) through holes in clevis (10) and clevis arm of axle (5).

c. Install washer (7) and cotter pin (6) on clevis pin (8).

d. Install lubrication fitting (18) in clevis pin (8), unless already Installed.

e. Repeat steps 8a thru 8d for other axle, if necessary.

9. Install elbow fitting (16) in replacement ram assembly (11), using Teflon Tape (item 8, Appendix D).

10. Connect hose assembly (15) to elbow (16) installed in ram assembly (11) and tighten.

11. Install Wheel assembly.

a. Install wheel assembly (4) on axle hub (5).

b. Install retainer (3) and castle nut (2).

c. Install cotter pin (1).

NOTE

Ensure freedom of hose movement throughout full travel of rams and axles, without rubbing on

wheel tire. If any interference with movement occurs, reconfigure hose routing to alleviate the

problem.

12. Perform service fill and bleed procedure in C below.

C. SERVICE

Refer to figure 3-7 and perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses (15) at tee

2. Rotate axles until hydraulic rams (11) are fully retracted.

3. Tighten flared fitting nuts on both hoses (15) at tee and check fluid level in pump.

4. Refill pump with fluid if necessary, and install cap.

5. Rotate the pump release valve knob clockwise to close valve.

6. Activate pump until axles are fully extended, ensuring freedom of hoses movement without

rubbing.

7. Release hydraulic pressure from system by rapidly rotating the pump release valve knob

counterclockwise.

8. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

9. If fluid level is incorrect, repeat steps 1 through 8; if correct, install cap and procedure is

completed.

END OF TASK

3-26
TM 1-1730-232-13&P

3-15.6 Wheel Assembly Replacement, Model 204-050-200-5 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 204-050-200-5. The numbers in parenthesis refer to figure 3-8 Observe all WARNINGS and

CAUTIONS while performing the following inspections.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Lubricating Oil ............................................................... P/N VV-L-800 (item 5, Appendix D)

Repair Parts

Wheel Assembly ............................................................ P/N 40-76-1

Personnel Required

MOS 67

Figure 3-8. Wheel Assembly, Model 204-050-200-5

GO TO NEXT PAGE

3-27
TM 1-1730-232-13&P

3-15.6 Wheel Assembly Replacement, Model 204-050-200-5 (AVUM) - Continued

A. REMOVE

Refer to figure 3-8 and remove the Wheel Assembly as follows:

1. Remove cotter pin (1), castle nut (2), and retainer (3).

2. Remove damaged wheel assembly (4) from axle (5).

3. Inspect axle to assure that It is clean. Lubricate machined surfaces lightly with lubricating oil (item 5,

Appendix D).

4 If wheel assembly is removed as part of a disassembly procedure, retain for reinstallation.

5. If wheel assembly is removed because it is defective, repair using procedures in paragraph 3-15.7.

B. INSTALL

Refer to figure 3-8 and install new or repaired Wheel Assembly as follows:

1. Install wheel assembly (4) on axle.

2. Install retainer (3), castle nut (2), and hand tighten castle nut until snug.

3. Back off castle nut until first slot aligns with hole in axle.

4. Install cotter pin (1) in slot of nut and hole in axle.

5. Perform service procedure In C below.

C. SERVICE

Service the Wheel Assembly as follows:

1. Check tire pressure with tire pressure gauge for 50 psi (34.5 kPa).

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

2. If pressure is incorrect, inflate or deflate tire to 50 psi (34.5 kPa); if pressure is correct, procedure is

completed.

END OF TASK

3-28
TM 1-1730-232-13&P

3-15.7 Wheel Assembly Repair, Model 204-050-200-5 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to wheel assembly with part number

40-76-1, used on Ground Handling Wheels Assembly, Model 204-050-200-5. The numbers in parenthesis refer to figure

3-9. Observe all WARNINGS and CAUTIONS while performing the following Inspections.

This task covers:

a. Repair

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Grease .......................................................................... MIL-G-10924 (item 7, Appendix D)

Repair Parts

Wheel Half, Outer .......................................................... P/N 162-27

Wheel Half, Inner........................................................... P/N 161-30

Tire P/N 7.00 X 6-6 PLY

Tube, Pneumatic ........................................................... P/N 7.00 X 6

Ring, Retaining .............................................................. P/N 155-1

Retainer, Packing .......................................................... P/N 153-15

Bearing ......................................................................... P/N 214-1 and 214-2

Seal . P/N 153-3

Felt, Mechanical ............................................................ P/N 154-01300

Personnel Required

MOS 67

GO TO NEXT PAGE

3-29
TM 1-1730-232-13&P

3-15.7 Wheel Assembly Repair, Model 204-050-200-5 (AVUM) - Continued

WARNING

To prevent injury, the tire and tube must be completely deflated, and the valve stem cores

removed, before attempting to separate the wheel halves.

A. Repair. Repair wheel assembly 40-76-1 as follows:

1. Remove the tire and tube (Figure 3-9).

a. Press valve stem core to vent air from tube(4) and deflate tire completely.

b. Remove valve stem core from tube stem.

c. Remove nuts(7), washers (6), and bolts (5) from wheel halves at three locations.

d. Separate wheel halves (2) and (1) and remove tire (3) and tube (4).

2. Remove bearings and grease seals from outer wheel half.

a. Remove lockring (8), washer (9), felt packing (10), washer (9), and bearing (11) from outer wheel half

(1).

b. Clean bearing race and inspect for damage. If race is damaged, replace outer bearing (11) or wheel

half (1).

3. Install bearings and grease seals in outer wheel half.

a. Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage with

fingers.

b. Install new bearing (11), washer (9), felt packing (10), flat washer (9), and lock ring (8).

4. Remove bearings and grease seals from inner wheel half.

a. Remove lockring (8), ring grease seal (14), felt packing (10), washer (15), and bearing (12) from inner

wheel half (2).

b. Clean bearing race and inspect for damage. If race is damaged, replace inner wheel half (2).

5. Install bearings and grease seals in inner wheel half.

a. Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage with

fingers.

b. Install new bearing (12), washer (15), felt packing (10), ring grease seal (14), and lockring (8) in inner

wheel half (2).

6. Install tire and tube.

a. Inflate new tube slightly to provide shape, and insert tube (4) into tire (3).

b. Nest tire (3), tube (2) on wheel halves (2 and 1).

c. Align tube valve stem and insert through hole in outer wheel half (2).

d. Install washers (6) on bolts (5) through outer wheel half and inner wheel half at three places.

e. Install washers (6) and nuts (7) on bolts (5); torque nuts to 140-150 in. lbs.

GO TO NEXT PAGE

3-30
TM 1-1730-232-13&P

3-15.7 Wheel Assembly Repair, Model 204-050-200-5 (AVUM) - Continued

A. REPAIR - Continued

Figure 3-9. Wheel Assembly, Model 204-050-200-5

GO TO NEXT PAGE

3-31
TM 1-1730-232-13&P

3-15.7 Wheel Assembly Repair, Model 204-050-200-5 (AVUM) - Continued

A. REPAIR - Continued

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

f. Install valve stem core and inflate tube.

g. Check tire pressure with tire pressure gauge for 50 psi (34.5 kPa). If pressure is incorrect, inflate or

deflate tire to 50 psi (34.5 kPa); if pressure is correct, procedure is completed.

END OF TASK

3-32
TM 1-1730-232-13&P

3-16. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 214-706-104-101 (AVUM).

The Ground Handling Wheels Assembly is group number 00 in the MAC Maintenance performed on Model 214706-104-

101, at the AVUM level, includes inspection, replacement and repair procedures. Inspection procedures are presented

for the hydraulic system, cradle assembly, and wheel assembly Replacement procedures are presented for the hydraulic

pump assembly, hydraulic ram assembly, and wheel assembly. Repair procedures for the wheel assembly are presented

In this section and repair procedures for the hydraulic pump assembly, hydraulic ram assembly, and cradle assembly, are

contained in Chapter 4, Section V.

3-16.1 Hydraulic System Inspection, Model 214-706-104-101 (AVUM).

The Hydraulic System is group number 01 in the MAC, and consists of a hydraulic pump assembly, two hydraulic ram

assemblies, two hydraulic hoses, and connection fittings. This procedure is applicable to Ground Handling Wheels

Assembly, Model 214-706-104-101. The numbers In parenthesis refer to figure 3-10. Inspect the hydraulic system as

follows:

1. Check hydraulic hose assemblies (8 or 9) and fittings (27 & 28) for leakage. If a hose assembly or

fitting is leaking, tighten; if defective, replace.

2. Check hydraulic rams (7) for leakage. If a hydraulic ram assembly is leaking, tighten hose (8 or 9) or

fitting (28); If defective, replace hydraulic ram using procedures in paragraph 3-16.5.

NOTE

Two types of hydraulic pump may be installed on this model of the Ground Handling Wheels

Assembly The older version pump with part number BU0953B is not repairable and will be

replaced by pump with part number 61780 upon failure. The pump with part number 61780 is

repairable.

3. Check hydraulic pump (4 or 5) for damage and leaks. If pump is leaking, tighten connections; if

defective, replace hydraulic pump using procedures in paragraph 3-16.4.

4. Check hydraulic system components for cleanliness. If a component is dirty, wipe clean with dry

cleaning solvent (item 6, Appendix D). Observe all WARNINGS relative to the use of cleaning agents.

END OF TASK

3-33
TM 1-1730-232-13&P

Figure 3-10. Ground Handling Wheel Assembly, Model 214-706-104-101

3-34
TM 1-1730-232-13&P

3-16.2 Cradle Assembly Inspection, Model 214-706-104-101 (AVUM).

The Cradle Assembly is group number 02 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 214-706-104-101. The numbers in parenthesis refer to figure 3-11. Inspect the cradle assembly as

follows:

Figure 3-11. Cradle Assembly, Model 214-706-104-101

1. Check for loose, bent, worn, or broken nose pin adapter (27) and attaching hardware (28 thru 31). If

nose pin adapter is damaged, replace.

2. Check for loose, bent, worn, or broken quick release pin (17). If quick release pin (17) is damaged,

return the Ground Handling Wheels Assembly to AVIM for repair.

3. Check for broken, bent, cracked, or damaged cradle assembly (1). If cradle assembly is damaged,

return the Ground Handling Wheels Assembly to AVIM and replace cradle assembly.

4. Check for broken, bent, cracked, or damaged axles assemblies (2 & 3). If an axle assembly is

damaged, return the Ground Handling Wheels Assembly to AVIM for repair.

END OF TASK

3-35
TM 1-1730-232-13&P

3-16.3 Wheel Assembly Inspection, Model 214-706-104-101 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 214-706-104-101. The numbers in parenthesis refer to figure 3-12. Inspect the wheel assembly as

follows:

Figure 3-12. Wheel Assembly, Model 214-706-104-101

1. Check for cracked/damaged rims (1 & 2), missing parts (6 thru 9), on wheel assembly. If damaged,

replace wheel assembly using procedures in paragraph 3-16.6 or repair wheel assembly using

procedures in paragraph 3-16.7. Replace any missing parts.

2. Check for cut, worn, or frayed tires (3). If a tire is defective, replace wheel assembly using procedures

in paragraph 3-16.6 or repair wheel assembly using procedures in paragraph 3-16.7.

3. Check for grease leaking from wheel assembly bearings packing retainers (4 or 5). If leaking grease,

replace wheel assembly using procedures in paragraph 3-16.6 or repair wheel assembly using

procedures in paragraph 3-16.7.

4. Check that wheel rotates freely on axle. If wheel rotation is sluggish and axle is good, replace

damaged wheel assembly using procedures in paragraph 3-16.6 or repair wheel assembly using

procedures in paragraph 3-16.7.

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

5. Check tire air pressure with tire pressure gauge for 75 psi (51.7 kPa). Inflate if necessary, using

available air source or deflate to proper pressure.

END OF TASK

3-36
TM 1-1730-232-13&P

3-16.4 Hydraulic Pump Replacement, Model 214-706-104-101 (AVUM).

The Hydraulic Pump Assembly is group number 0101 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 214-706-104-101. Two types of hydraulic pump may be installed on this model of the Ground

Handling Wheels Assembly. The older version pump has part number BU0953B and is not repairable. The new version

pump has part number 61780 and is repairable. An older version pump that is defective, will be replaced with the new

version upon failure. An older version pump, that is removed as part of a disassembly procedure, will be reinstalled if not

defective. The numbers in parenthesis refer to figure 3-13 or 3-14.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Materials

Teflon Tape.................................................................... P/N MIL-T-27730 (item 8, Appendix D)

Repair Parts

Pump, Hydraulic............................................................. P/N 61780

Personnel Required

MOS 67

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the hydraulic

pump before starting any maintenance action. Release hydraulic pressure by rapidly rotating the

pressure release knob counterclockwise.

GO TO NEXT PAGE

3-37
TM 1-1730-232-13&P

3-16.4 Hydraulic Pump Replacement, Model 214-706-104-101 (AVUM) - Continued

A. REMOVE

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the pump release valve knob

counterclockwise.

3. Disconnect both hose assemblies from tee fitting (27) installed in pump metering valve, and drain fluid

into drip pan.

4. Remove tee fitting (27) from reducer/metering valve in pump, and retain for installation in replacement

pump.

5. Refer to figure 3-13 and remove pump (5), with part number BU0953B, as follows:

a. Remove four nuts (16) and four washers (17) from the U-bolts (18 & 19).

b. Remove two U-bolts (18 & 19) and plate spacer (21).

c. Grasp pump (5) and lift from cradle assembly (11).

d. If pump was removed as part of a disassembly procedure, retain pump and attaching hardware for

reinstallation.

e. If pump was removed because it is defective, send to AVIM for disposal.

Figure 3-13. Hydraulic Pump, Part No. BU0953B

GO TO NEXT PAGE

3-38
TM 1-1730-232-13&P

3-16.4 Hydraulic Pump Replacement, Model 214-706-104-101 (AVUM)- Continued

6. Refer to figure 3-14 and remove pump (4), with part number 61780, as follows:

a. Remove two nuts (16) and washers (17) from U-bolt (18).

b. Remove U-bolt (18).

c. Remove two nuts (26), washers (17), and bolts (25).

d. Grasp pump (4) and lift from cradle assembly (11).

e. If pump was removed as part of a disassembly procedure, retain pump and attaching hardware for

reinstallation.

f. If pump was removed because it Is defective, send to AVIM See Chapter 4, Section V, paragraph

4-16.1.

Figure 3-14. Hydraulic Pump, Part No. 61780

GO TO NEXT PAGE

3-39
TM 1-1730-232-13&P

3-16.4 Hydraulic Pump Replacement, Model 214-706-104-101 (AVUM)- Continued

NOTE

Only hydraulic pump assembly with part number 61780 can be used to replace either defective

pump removed above. A mounting plate and hydraulic fitting guard are already installed on the

replacement pump assembly.

B. INSTALL

Refer to figure 3-14 and Install a hydraulic pump as follows:

1. Install the Hydraulic Pump (4), with part number 61780, using following steps.

a. Position hydraulic pump (4) on cradle assembly (11) and align mounting holes.

b. Insert bolts (25) through holes in pump mounting plate and hydraulic fitting guard; attach with

washers (17) and nuts (26).

c. Install U-bolt (18) over pump (4) body and insert through holes in cradle, attach with washers (17)

and nuts (16) Torque to snug only, do not over torque or indent pump reservoir with u-bolt.

Maximum torque is no more than four inch pounds above run-on torque

d. Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), In reducer/metering valve in

pump.

e. Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this

time.

f. Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C

below.

NOTE

If an older version pump, with part number BU0953B, was removed as part of a disassembly

procedure, it will be reinstalled using following procedure.

2. Refer to figure 3-13 and Install the Hydraulic Pump (5), with part number BU09538, using following

steps.

a. Position hydraulic pump (5) on cradle assembly (11) until it is centered over four mounting holes in

cradle.

b. Install spacer (21) under pump at front, install U-bolt (19) over pump body (5) and insert through

holes in spacer and cradle; attach U-bolt with washers (17) and nuts (16).

c. Install U-bolt (18) over pump body (5) and Insert through holes in cradle; attach U-bolt with

washers (17) and nuts (16).

d. Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), in reducer/metering valve in

pump.

e. Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this

time.

f. Perform fill and bleed procedure of hydraulic system in accordance with service procedure in C

below.

GO TO NEXT PAGE

3-40
TM 1-1730-232-13&P

3-16.4 Hydraulic Pump Replacement, Model 214-706-104-101 (AVUM)- Continued

C. SERVICE

Refer to figure 3-13 or 3-14 and perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses at tee (27).

2. Rotate axles until hydraulic rams are fully retracted.

3 Tighten flared fitting nuts on both hoses at tee (27) and check fluid level in pump.

4. Refill pump with fluid i necessary, and install cap.

5. Activate pump until axles are fully extended.

6. Release hydraulic pressure from system by rapidly rotating the release valve knob counterclockwise.

7. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

8. If fluid level is incorrect, repeat steps 4 through 7; if correct, install cap and gasket; procedure is

completed.

END OF TASK

3-41
TM 1-1730-232-13&P

3-16.5 Hydraulic Ram Replacement, Model 214-706-104-101 (AVUM).

The Hydraulic Ram Assembly is group number 0102 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 214-706-104-101. The Hydraulic Ram Assembly is non-repairable and is discarded upon

failure. The numbers in parenthesis refer to figure 3-15.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Repair Parts

Hydraulic Fluid ............................................................... PIN MIL-H-5606 (item 1, Appendix D)

Repair Parts

Ram Assembly, Hydraulic .............................................. PIN 1730-EG-119

Personnel Required

MOS 67

WARNING

To prevent Injury to personnel or damage to equipment, release all pressure from the hydraulic

pump before starting any maintenance action. Release hydraulic pressure by rapidly rotating the

pressure release knob counterclockwise.

GO TO NEXT PAGE

3-42
TM 1-1730-232-13&P

3-16.5 Hydraulic Ram Replacement, Model 214-706-104-101 (AVUM) - Continued.

A. REMOVE

Refer to figure 3-15 and remove the Hydraulic Ram Assembly as follows:

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the pump release valve knob 1/4 turn

counterclockwise nominally.

WARNING

If removal of castle nut from axle requires any appreciable torque, immediately check condition

and security of each split rim attaching bolt and nut. Assure that they are securely holding Inner

and outer wheel rim halves together. If not, removal of the castle nut from axle may result in

explosive separation of rims with resultant damage, injury or death.

3. Remove wheel assembly.

a. Remove cotter pin (1).

b. Remove castle nut (2), and retainer (3).

c. Remove wheel assembly (4) from axle hub (5).

4. Disconnect hydraulic ram clevis (10) by removing cotter pin (6), two flat washers (7), and clevis pin (8).

Retain parts for connecting replacement ram clevis.

5. Rotate axle to see clevis set screw (9) and loosen set screw.

6. Rotate axle to clear clevis, unthread clevis (10) from hydraulic ram piston (17), and retain clevis for

installation In replacement ram.

7. Disconnect hose assembly (15) from elbow (16) Installed In ram assembly (11) and drain fluid into drip

pan.

8. Remove elbow (16) from ram assembly (11) and retain for installation in replacement ram.

9. Remove setscrew (13) and plug from trunnion (14), and retain for installation of replacement ram.

10. Unthread clevis (10) from ram piston (17).

11. Unscrew ram assembly (11) from trunnion (14).

12. Install new ram assembly in accordance with B below.

GO TO NEXT PAGE

3-43
TM 1-1730-232-13&P

Figure 3-15. Hydraulic Ram, Model 214-706-104-101

GO TO NEXT PAGE

3-44
TM 1-1730-232-13&P

3-16.5 Hydraulic Ram Replacement, Model 214-706-104-101 (AVUM) - Continued.

B. INSTALL

Refer to figure 3-15 and install the Hydraulic Ram Assembly as follows.

1. Arrange replacement ram assembly and attaching parts retained during removal

2. Thread ram assembly (11) into trunnion (14) until it bottoms out; back off until the hydraulic inlet hole is

facing outward from the cradle and slightly above parallel with the trunnion.

CAUTION

Over tightening the ram assembly setscrew can prevent the ram from operating properly

3. Install the ram assembly setscrew (13), and only tighten until snug

4. Thread clevis (10) into the hydraulic ram piston (17) and fully extend the ram

NOTE

To ensure proper operation, the clevis must be threaded into ram piston until distance from

trunnion to centerline of hole in clevis is 3.915 inches (9 94 cm). The clevis should be

configured with the long length of slot facing up and the short side facing down.

5. Measure the distance from the face of trunnion (14) (inboard side) to centerline of holes in clevis (10);

measurement should be 3 915 inches (9.94 cm) when piston in bottomed in ram.

CAUTION

Over tightening the ram assembly setscrew can crack or dent interior surface of hollow piston

shaft and prevent the ram from operating properly

NOTE

If measurement is incorrect, the clevis to piston relationship must be adjusted. To maintain

clevis configuration, the ram piston is rotated rather than the clevis, until proper measurement

is attained.

6. Hold clevis (10) and rotate ram piston (17) until 3.915 inches (9.94 cm) measurement is achieved;

tighten the clevis setscrew (13).

7. Rotate the axle down and align each clevis with an axle arm.

GO TO NEXT PAGE

3-45
TM 1-1730-232-13&P

3-16.5 Hydraulic Ram Replacement, Model 214-706-104-101 (AVUM) - Continued.

WARNING

Operator injury or death and equipment damage may occur if the clevis pin mandatory

configuration is not Implemented. Mandatory configuration requires one washer (7) under

head of clevis pin (8) and one on other end of clevis pin (8), between clevis and cotter pin (6).

A fracture or stress of clevis pin may occur under hoses helical weighted load.

8. Connect ram clevis (10) to arm on axle (5) as follows:

a. Install a washer (7) on head end of clevis pin (8).

b. Insert clevis pin (8) through holes in clevis (10) and clevis arm of axle (5).

c. Install washer (7) and cotter pin (6) on clevis pin (8).

d. Install lubrication fitting in clevis pin (8), unless already Installed.

e. Repeat steps 8a thru 8d for other axle, If necessary.

9. Install elbow fitting (16) In replacement ram assembly (11), using Teflon Tape (item 8, Appendix D).

10. Connect hose assembly (15) to elbow (16) installed In ram assembly (11) and tighten.

11. Install Wheel assembly.

a. Install wheel assembly (4) on axle hub (5).

b. Install retainer (3) and castle nut (2).

c. Install cotter pin (1).

NOTE

Ensure freedom of hose movement throughout full travel of rams and axles, without rubbing

on wheel tire. If any interference with movement occurs, reconfigure hose routing to alleviate

the problem.

12. Perform service fill and bleed procedure in C below.

C. SERVICE

Perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses (15) at tee

2. Rotate axles until hydraulic rams (11) are fully retracted.

3. Tighten flared fitting nuts on both hoses (15) at tee and check fluid level in pump.

4. Refill pump with fluid if necessary, and install cap.

5. Rotate the pump release valve knob clockwise to close valve.

6. Activate pump until axles are fully extended, ensuring freedom of hoses movement without rubbing.

7. Release hydraulic pressure from system by rapidly rotating the pump release valve knob

counterclockwise.

8. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

9. If fluid level Is incorrect, repeat steps 1 through 8; if correct, install cap and procedure is completed.

END OF TASK

3-46
TM 1-1730-232-13&P

3-16.6 Wheel Assembly Replacement, Model 214-706-104-101 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 214-706-104-101. The numbers in parenthesis refer to figure 3-16 Observe all WARNINGS and

CAUTIONS while performing the following Inspections.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Lubricating Oil................................................................ P/N VV-L-800 (item 5, Appendix D)

Repair Parts

Wheel Assembly . .......................................................... P/N 40-117A

Personnel Required

MOS 67

A. REMOVE

Refer to figure 3-16 and remove the Wheel Assembly as follows:

1. Remove cotter pin (1), castle nut (2), and retainer (3).

2. Remove damaged wheel assembly (4) from axle (5).

3. Inspect axle to assure that it. is clean. Lubricate machined surfaces lightly with lubricating oil (item 5,

Appendix D).

4. If wheel assembly is removed as part of a disassembly procedure, retain for reinstallation.

5. If wheel assembly is removed because it is defective, repair using procedures in paragraph 3-16.7.

GO TO NEXT PAGE

3-47
TM 1-1730-232-13&P

3-16.6 Hydraulic Ram Replacement, Model 214-706-104-101 (AVUM) - Continued.

Figure 3-16. Wheel Assembly, Model 214-706-104-101

B. INSTALL

Refer to figure 3-16 and install new or repaired Wheel Assembly as follows'

1. Install wheel assembly (4) on axle (5), after cleaning and lubricating.

2. Install retainer (3) and castle nut (2); hand tighten castle nut until snug

3. Back off castle nut until first slot aligns with hole In axle.

4. Install cotter pin (1) in slot of nut and hole in axle, and secure by bending both tangs.

5. Perform service procedure in C below.

C. SERVICE

Service the Wheel Assembly as follows:

1. Check condition, security, and torque (150-225 inch pounds) on six split rim connector bolts and nuts.

Replace as required H unserviceable.

2. Check tire pressure with tire pressure gauge for 75 psi (51 7 kPa).

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

3. If pressure is incorrect, inflate or deflate tire to 75 psi (51.7 kPa); if pressure is correct, procedure is

completed.

END OF TASK

3-48
TM 1-1730-232-13&P

3-16.7 Wheel Assembly Replacement, Model 214-706-104-101 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to wheel assembly with part number

40-117A, used on Ground Handling Wheels Assembly, Model 214-706-104-101. The numbers in parenthesis refer to

figure 3-17. Observe all WARNINGS and CAUTIONS while performing the following inspections.

This task covers:

a. Remove

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Grease P/N MIL-G-10924 (item 7, Appendix D)

Repair Parts

Wheel Half, Outer .......................................................... P/N 162-48

Wheel Half, Inner........................................................... P/N 161-23

Tire .......................................................................... P/N MS26535-2

Tube, Pneumatic ........................................................... P/N ZZ-1-550/G5/5.70/5.00-8/OFFCTR

Ring, Retaining. ............................................................. P/N 155-1

Washer, Flat .................................................................. P/N 153-4

Retainer, Packing........................................................... P/N 153-15

Bearing ......................................................................... P/N 214-1 and 214-2

Seal .......................................................................... P/N 153-3

Felt, Mechanical............................................................. P/N 154-01300

Personnel Required

MOS 67

A. REPAIR

WARNING

To prevent personnel injury, the tire and tube must be completely deflated, and the valve stem

cores removed, before attempting to separate the wheel halves in the following procedures.

GO TO NEXT PAGE

3-49
TM 1-1730-232-13&P

3-16.7 Wheel Assembly Repair, Model 214-706-104-101 (AVUM) Continued

Figure 3-17. Wheel Assembly for Model 214-706-104-101

GO TO NEXT PAGE

3-50
TM 1-1730-232-13&P

3-16.7 Wheel Assembly Repair, Model 214-706-104-101 (AVUM) - Continued

Refer to figure 3-17 and repair wheel assembly 40-117A as follows

1. Remove tire and tube.

a. Press valve stem core to vent air from tube(4) and deflate tire completely

b. Remove valve stem core from tube stem.

c. Remove nuts(7), washers (6), and bolts (5) from wheel halves at three locations.

d. Separate wheel halves (2) and (1) and remove tire (3) and tube (4)

2. Remove bearings and grease seals from outer wheel half.

a. Remove lockring (8), washer (9), felt packing (10), washer (9), and bearing (11) from outer wheel

half (1).

b. Clean bearing race and inspect for damage. If race is damaged, replace outer bearing (11) or

wheel half (1)

3. Install bearings and grease seals in outer wheel half

a. Pack new bearing by dipping in grease (Item 7, Appendix D) and working between balls and

cage with fingers.

b. Install new bearing (11), washer (9), felt packing (10), flat washer (9), and lock ring (8).

4. Remove bearings and grease seals from Inner wheel half

a. Remove lockring (8), ring grease seal (14), felt packing (10), washer (15), and bearing (12) from

inner wheel half (2).

b. Clean bearing race and inspect for damage. If race is damaged, replace Inner wheel half (2).

5. Install bearings and grease seals in inner wheel half

a. Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage

with fingers.

b. Install new bearing (12), washer (15), felt packing (10), ring grease seal (14) and lockring (8) in

inner wheel half (2).

6. Install tire and tube.

a. Inflate new tube slightly to provide shape, and insert tube (4) into tire (3)

b. Nest tire (3), tube (4) on wheel halves (2 and 1).

c. Align tube valve stem and insert through hole in outer wheel half (2)

d. Install washers (6) on bolts (5) through outer wheel half and inner wheel half at six places.

e. Install washers (6) and nuts (7) on bolts (5), torque nuts to 140-150 in lbs

f. Install valve stem core and inflate tube.

g. Check tire pressure with tire pressure gauge for 75 psi (51.7 kPa). If pressure is incorrect, inflate

or deflate tire to 75 psi (51.7 kPa); if pressure is correct, procedure is completed.

END OF TASK

3-51
TM 1-1730-232-13&P

3-17. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 1730-EG-100 (AVUM).

The Ground Handling Wheels Assembly is group number 00 in the MAC. Maintenance performed on Model 1730-EG100, at the AVUM level, includes inspection, replacement and repair procedures. Inspection procedures are presented

for the hydraulic system, cradle assembly, and wheel assembly. Replacement procedures are presented for the

hydraulic pump assembly, hydraulic ram assembly, and wheel assembly. Repair procedures for the wheel assembly are

presented in this section and repair procedures for the hydraulic pump assembly, hydraulic ram assembly, and cradle

assembly, are contained in Chapter 4, Section V. Refer to Appendix C, Figure C-1-3, to identify assemblies in the

following procedures.

3-17.1 Hydraulic System Inspection, Model 1730-EG-100 (AVUM).

The Hydraulic System is group number 01 in the MAC, and consists of a hydraulic pump assembly, two hydraulic ram

assemblies, two hydraulic hoses, and connection fittings. This procedure is applicable to Ground Handling Wheels

Assembly, Model 1730-EG-100. Refer to figure 3-18 and inspect the hydraulic system as follows:

Figure 3-18. Ground Handling Wheels Assembly, Model 1730-EG-100

1. Check hydraulic hose assemblies (9) and fittings for leakage. If a hose assembly or fitting is leaking,

tighten; if defective, return Ground Handling Wheels Assembly to AVIM for repair.

2. Check hydraulic rams (1) for leakage. If a hydraulic ram assembly is leaking at hose fitting, tighten

hose fitting; if defective, replace hydraulic ram using procedures in paragraph 3-17.5.

3. Check hydraulic pump (4) for damage and leaks. If pump is leaking, tighten connections; if defective,

replace hydraulic pump using procedures in paragraph 3-17.4.

4. Check hydraulic system components for cleanliness. If a component is dirty, wipe clean with dry

cleaning solvent (item 6, Appendix D). Observe all WARNINGS relative to the use of cleaning agents.

END OF TASK

3-52
TM 1-1730-232-13&P

3-17.2 Cradle Assembly Inspection, Model 1730-EG-100 (AVUM).

The Cradle Assembly Is group number 02 In the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 1730-EG-100 Inspect the cradle assembly as follows:

Figure 3-19. Cradle Assembly, Model 1730-EG-100

1. Check for loose, bent, worn, or broken nose pin (38). If nose pin is damaged, replace.

2. Check for loose, bent, worn, or broken rear support pin (17). If rear support pin is damaged, replace.

3. Check for broken, missing parts, excessive wear, cracked, or damaged Cradle Assembly (1). If cradle

assembly is damaged, return the Ground Handling Wheels Assembly to AVIM for repair.

END OF TASK

3-53
TM 1-1730-232-13&P

3-17.2 Wheel Assembly Inspection, Model 1730-EG-100 (AVUM).

The Wheel Assembly is group number 03 in the MAC This procedure is applicable to Ground Handling Wheels

Assembly, Model 1730-EG-100. Inspect the wheel assembly as follows,

Figure 3-20. Wheel Assembly for Model 1730-EG-100

1. Check for cracked rims (1 & 2), missing parts, or damage to wheel assembly. If damaged, replace

wheel assembly using procedures in paragraph 3-17.6 or repair wheel assembly using procedures in

paragraph 3-17. 7.

2. Check for cut, worn, or frayed tires (3). If a tire is defective, replace wheel assembly using procedures

in paragraph 3-17.6 or repair wheel assembly using procedures in paragraph 3-17.7.

3. Check for grease leaking from wheel assembly bearings (11 & 12). If leaking grease, replace wheel

assembly using procedures in paragraph 3-17.6 or repair wheel assembly using procedures in

paragraph 3-17.7.

4. Check that wheel rotates freely on axle. If wheel rotation is sluggish and the axle is okay, replace

wheel assembly using procedures In paragraph 3-17.6 or repair wheel assembly using procedures in

paragraph 3-17.7.

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

5. Check tire air pressure with tire pressure gauge for 75 psi (51.7 kPa). Inflate tube (4) if necessary,

using available air source or deflate to proper pressure.

END OF TASK

3-54
TM 1-1730-232-13&P

3-17.4 Hydraulic Pump Replacement, Model 173G0EG-100 (AVUM).

The Hydraulic Pump Assembly is group number 0101 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 1730-EG-100. The hydraulic pump Installed on this model has part number 61780 and is

repairable. A pump that is removed as part of a disassembly procedure, will be reinstalled rf not defective The numbers

in parenthesis refer to figure 3-21. Observe all WARNINGS and CAUTIONS while performing the following procedure.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Materials

Teflon Tape ................................................................... P/N MIL-T-27730 (item 8, Appendix D)

Hydraulic Fluid . ............................................................. P/N MIL-H-5606 (item 1, Appendix D)

Repair Parts

Pump, Hydraulic ............................................................ P/N 61780

Personnel Required

MOS 67

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the

hydraulic pump before starting any maintenance action. Release hydraulic pressure by

rapidly rotating the pressure release knob counterclockwise.

GO TO NEXT PAGE

3-55
TM 1-1730-232-13&P

3-17.4 Hydraulic Pump Replacement, Model 1730-EG-100 (AVUM) - Continued.

A. REMOVE

Refer to figure 3-21 and remove hydraulic pump from cradle assembly as follows:

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the pump release valve knob

counterclockwise.

3. Disconnect both hose assemblies from tee fitting (27) installed in pump reducer/metering valve, and

drain fluid into drip pan.

4. Remove tee fitting (27) from reducer/metering valve in pump, and retain for Installation In replacement

pump.

5. Remove pump (4) as follows.

a. Remove two nuts (16) and washers (17) from U-bolt (18).

b. Remove U-bolt (18).

c. Remove two nuts (26), washers (17), and bolts (25).

d. Grasp pump (4) and lift from cradle assembly (12).

e. If pump was removed as part of a disassembly procedure, retain pump and attaching hardware

for reinstallation.

f. If pump was removed because it is defective, send to AVIM for repair

Figure 3-21. Hydraulic Pump, Part No. 61780

GO TO NEXT PAGE

3-56
TM 1-1730-232-13&P

3-17.4 Hydraulic Pump Replacement, Model 1730-EG-100 (AVUM) - Continued.

NOTE

Only hydraulic pump assembly with part number 61780 can be used to replace the defective

pump removed above. A mounting plate and hydraulic fitting guard are already installed on

an assembled pump.

B. INSTALL

Refer to figure 3-21 and Install the hydraulic pump on cradle assembly as follows:

1. Position hydraulic pump (4) on cradle assembly (12) and align mounting holes.

2. Insert two bolts (25) through holes in pump mounting plate and hydraulic fitting guard; attach with

washers (17) and nuts (26).

3. Install U-bolt (18) over pump (4) body and insert through holes in cradle; attach with washers (17) and

nuts (16).

4. Install tee fitting (27), wrapped with Teflon Tape (item 8, Appendix D), in reducer/metering valve in

pump.

5. Connect hose assemblies to both sides of tee fitting (27), but do not tighten completely at this time.

6. Perform service fill and bleed procedure in C below.

C. SERVICE

Refer to figure 3-21 and perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses at tee fitting (27).

2. Rotate axle until hydraulic rams are fully retracted.

3. Tighten flared fitting nuts on both hoses at tee fitting (27) and check fluid level in pump.

4. Refill pump with hydraulic fluid (Item 1, Appendix D) if necessary, and install cap.

5. Activate pump until axles are fully extended.

6. Release hydraulic pressure from system by rapidly rotating the pressure release valve knob

counterclockwise.

7. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

8. If fluid level is incorrect, repeat steps 1 through 7; if correct, install cap and procedure is completed.

END OF TASK

3-57
TM 1-1730-232-13&P

3-17.5 Hydraulic Ram Replacement, Model 1730-EG-100 (AVUM).

The Hydraulic Ram Assembly is group number 0102 in the MAC. This procedure is applicable to Ground Handling

Wheels Assembly, Model 1730-EG-100. The Hydraulic Ram Assembly is non-repairable and is discarded upon failure.

The numbers In parenthesis refer to figure 3-22.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Drip Pan

Materials

Hydraulic Fluid .............................................................. P/N MIL-H-5606 (item 1, Appendix D)

Repair Parts

Ram Assembly, Hydraulic ............................................. P/N 1730-EG-119

Personnel Required

MOS 67

Figure 3-22. Hydraulic Ram for Model 1730-EG-100

GO TO NEXT PAGE

3-58
TM 1-1730-232-13&P

3-17.5 Hydraulic Ram Replacement, Model 1730-EG-100 (AVUM) - Continued.

WARNING

To prevent injury to personnel or damage to equipment, release all pressure from the

hydraulic pump before starting any maintenance action. Release hydraulic pressure by

rapidly rotating the pressure release knob counterclockwise.

A. REMOVE

Refer to figure 3-22 and remove the Hydraulic Ram Assembly as follows:

1. Place drip pan under wheels assembly.

2. Remove hydraulic pressure from system by rapidly rotating the pump release valve knob

counterclockwise.

3. Remove wheel assembly.

a. Remove cotter pin (1).

b. Remove castle nut (2), and retainer (3).

c. Remove wheel assembly (4) from axle hub (5).

NOTE

Both devises must be disconnected in next step.

4. Disconnect hydraulic ram clevis (10) by removing cotter pin (6), two flat washers (7), and clevis pin (8).

Retain parts for connecting replacement ram clevis.

5. Rotate axle to see clevis set screw (9) and loosen set screw.

6. Rotate axle to clear clevis, unthread clevis (10) from hydraulic ram piston (15), and retain clevis for

Installation in replacement ram.

7. Disconnect hose assembly (17) from ram assembly (11) and drain fluid Into drip pan.

8. Remove setscrew (13) and plug from trunnion (14), and retain for installation of replacement ram.

9. Unscrew ram assembly (11) from trunnion (14).

10. Install new ram assembly in accordance with B below.

GO TO NEXT PAGE

3-59
TM 1-1730-232-13&P

3-17.5 Hydraulic Ram Replacement, Model 1730-EG-100 (AVUM) - Continued.

B. INSTALL

Refer to figure 3-22 and install the Hydraulic Ram Assembly as follows:

1. Arrange replacement ram assembly and attaching parts retained during removal.

2. Thread ram assembly (11) into trunnion (14) until it bottoms out; back off until the hydraulic inlet hole is

facing outward from the cradle and slightly above parallel with the trunnion.

CAUTION

Over tightening the ram assembly setscrew can prevent the ram from operating properly.

3. Install the ram assembly setscrew (13) and plug; only tighten until snug.

4. Thread clevis (10) into the hydraulic ram pistol(15) and fully extend the ram.

NOTE

To ensure proper operation, the clevis must be threaded into ram piston until distance from

trunnion to centerline of hole in clevis is 3.915 inches (9.94 cm). The clevis should be

configured with the long length of slot facing up and the short side facing down.

5. Measure the distance from the face of trunnion (14) (inboard side) to centerline of holes in clevis (10);

measurement should be 3.915 inches (9.94 cm) when piston in bottomed in ram.

CAUTION

Over tightening the ram assembly setscrew can crack or dent interior surface of hollow piston

shaft and prevent the ram from operating properly.

NOTE

If measurement is incorrect, the clevis to piston relationship must be adjusted. To maintain

clevis configuration, the ram piston is rotated rather than the clevis, until proper measurement

is attained.

6. Hold clevis (10) and rotate ram piston (15)until 3.915 inches (9.94 cm) measurement is achieved;

tighten the clevis setscrew (13).

7. Rotate the axle down and align each clevis with an axle arm.

GO TO NEXT PAGE

3-60
TM 1-1730-232-13&P

3-17.5 Hydraulic Ram Replacement, Model 1730-EG-100 (AVUM) - Continued.

WARNING

Operator injury or death and equipment damage may occur If the clevis pin mandatory

configuration is not implemented. Mandatory configuration requires one washer (7) under

head of clevis pin (8) and one on other end of clevis pin (8), between clevis and cotter pin (6).

A fracture or stress of clevis pin may occur under hoses helical weighted load.

8. Connect ram clevis (10) to arm on axle (5) as follows:

a. Install a washer (7) on head end of clevis pin (8).

b. Insert clevis pin (8) through holes in clevis (10) and clevis arm of axle (5).

c. Install washer (7) and cotter pin (6) on clevis pin (8).

d. Install lubrication fitting (18) In clevis pin (8), unless already Installed.

e. Repeat steps 8a thru 8d for other axle, if necessary.

9. Install hose assembly (17) in replacement ram assembly (11), using Teflon Tape (item 8, Appendix D)

and tighten.

10 Install Wheel assembly.

a. Install wheel assembly (4) on axle hub (5).

b. Install retainer (3) and castle nut (2).

c. Install cotter pin (1).

NOTE

Ensure freedom of hose movement throughout full travel of rams and axles, without rubbing

on wheel tire. If any interference with movement occurs, reconfigure hose routing to alleviate

the problem.

12. Perform service fill and bleed procedure in C below.

GO TO NEXT PAGE

3-61
TM 1-1730-232-13&P

3-17.5 Hydraulic Ram Replacement, Model 1730-EG-100 (AVUM) - Continued.

C. SERVICE

Refer to figure 3-22 and perform fill and bleed procedure of hydraulic system as follows:

1. Loosen flared fitting nuts on both hoses (17)at tee fitting

2. Rotate axles in cradle until hydraulic rams pistons (15)are fully retracted into ram (11).

3. Tighten flared fitting nuts on both hoses (17) at tee fitting and check fluid level in pump.

4. Refill pump with hydraulic fluid (item 1, Appendix D) if necessary, and install cap.

5. Activate pump until ram pistons/axles are fully extended and bottomed out in trunnion.

6. Release hydraulic pressure from system by rapidly rotating the pump pressure release valve knob

counterclockwise.

7. Rotate axles until the hydraulic rams are fully retracted and recheck fluid level in pump.

8. If fluid level is incorrect, repeat steps 1 through 7; if correct, install Cap and procedure is Completed.

END OF TASK

3-62
TM 1-1730-232-13&P

3-17.6 Wheel Assembly Replacement, Model 1730-EG-100 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to Ground Handling Wheels

Assembly, Model 1730-EG-100. The numbers in parenthesis refer to figure 3-23. Observe all WARNINGS and

CAUTIONS while performing the following Inspections.

This task covers:

a. Remove b. Install c. Service

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Lubricating Oil................................................................ P/N VV-L-800 (item 5, Appendix D)

Repair Parts

Wheel Assembly ............................................................ P/N 1730-EG-116

Personnel Required

MOS 67

Figure 3-23. Wheel Assembly for Model 1730-EG-100

GO TO NEXT PAGE

3-63
TM 1-1730-232-13&P

3-17.6 Wheel Assembly Replacement, Model 1730-EG-100 (AVUM) - Continued

A. REMOVE

Refer to figure 3-23 and remove the Wheel Assembly as follows:

1. Remove cotter pin (1), castle nut (2), and retainer (3).

2. Remove wheel assembly (4) from axle (5).

3. inspect axle to assure that it is clean. Lubricate machined surfaces lightly with lubricating oil (item 5,

Appendix D).

4. If wheel assembly is removed as part of a disassembly procedure, retain for reinstallation.

5. If wheel assembly is removed because it is defective, repair using procedures in paragraph 3-16.7.

B. INSTALL

Refer to figure 3-23 and install new or repaired Wheel Assembly as follows:

1. Install wheel assembly (4) on axle (5).

2. Install retainer (3), castle nut (2), and hand tighten castle nut until snug.

3. Back off castle nut until first slot aligns with hole in axle.

4. Install cotter pin (1) in slot of nut and hole In axle and bend both tangs.

5. Perform service procedure in C below.

C. SERVICE 

Service the Wheel Assembly as follows:

1. Check tire pressure with tire pressure gauge for 75 psi (51.7 kPa).

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly, tightened locknuts could separate under pressure, causing serious injury or

death.

2. If pressure is incorrect, inflate or deflate tire to 75 psi (51.7 kPa); if pressure is correct, procedure is

completed.

END OF TASK

3-64
TM 1-1730-232-13&P

3-17.7 Wheel Assembly Repair, Model 1730-EG-100 (AVUM).

The Wheel Assembly is group number 03 in the MAC. This procedure is applicable to wheel assembly with part number

1730-EG-116, used on Ground Handling Wheels Assembly, Model 1730-EG-100. The numbers in parenthesis refer to

figure 3-24. Observe all WARNINGS and CAUTIONS while performing the following inspections.

This task covers: A. Repair

INITIAL SETUP

Tools

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

Tire Pressure Gauge

Materials

Grease .......................................................................................P/N MIL-G-10924 (item 7, Appendix D)

Repair Parts

Wheel Half, Outer .......................................................................P/N 162-48

Wheel Half, Inner........................................................................P/N 161-23

Tire ............................................................................................P/N MS26535-2

Tube, Pneumatic ........................................................................P/N ZZ-1-550/G5/5.70/5.00-8/OFFCTR

Ring, Retaining ...........................................................................P/N 155-1

Washer, Flat ...............................................................................P/N 153-4

Retainer, Packing .......................................................................P/N 153-15

Bearing .......................................................................................P/N 214-1 and 214-2

Seal ............................................................................................P/N 153-3

Felt, Mechanical .........................................................................P/N 154-01300

Personnel Required

MOS 67

GO TO NEXT PAGE

3-65
TM 1-1730-232-13&P

Figure 3-24. Wheel Assembly for Model 1730-EG-100

GO TO NEXT PAGE

3-66
TM 1-1730-232-13&P

3-17.7 Wheel Assembly Repair, Model 1730-EG-100 (AVUM) - Continued

A. REPAIR

WARNING

To prevent personnel Injury, the tire and tube must be completely deflated, and the valve stem

cores removed, before attempting to separate the wheel halves In the following procedures.

Repair wheel assembly 1730-EG-1 16 as follows;

1. Remove tire and tube.

a. Press valve stem core to vent air from tube and deflate tire completely.

b. Remove valve stem core from tube stem.

c. Remove nuts (7), washers (6), and bolts (5), from wheel halves at six locations.

d. Separate wheel halves (1 and 2) and remove tire (3) and tube (4).

2. Remove bearings and grease seals from outer wheel half.

a. Remove lock ring (8), washer (9), felt packing (10), washer (9), and bearing (11) from outer wheel half (1).

b. Clean bearing race and Inspect for damage. If race is damaged replace outer wheel half (1).

3. Install bearings and grease seals in outer wheel half.

a. Pack new bearing by dipping In grease (item 7, Appendix D) and working between balls and cage with fingers.

b. Install new bearing (11), washer (9), felt packing (10), flat washer (9), and lock ring (8).

4. Remove bearings and grease seals from inner wheel half.

a. Remove lock ring (8), ring grease seal (15), felt packing (10), washer (14), and bearing (12) from the inner wheel

half (2).

b. Clean bearing race and Inspect for damage. If race is damaged replace inner wheel half (2).

5. Install bearings and grease seals in inner wheel half.

a. Pack new bearing by dipping in grease (item 7, Appendix D) and working between balls and cage with fingers.

b. Install new bearing (12), washer (14), felt packing (10) ring grease seal (15), and lock ring (8) in Inner wheel half

(2).

6. Install tire and tube.

a. Inflate new tube slightly to provide shape, and insert tube (4) Into tire (3).

b. Nest tire (3), tube (4) on wheel halves (1 and 2).

c. Align tube valve stem and insert through hole In outer wheel half (1).

d. Place a washer (6) on each bolt (5), and insert bolts (5) through outer wheel half and inner wheel half at three

places.

e. Install washers (6) and nuts (7) on bolts (5); torque nuts to 150-225 in. lbs.

GO TO NEXT PAGE

3-67
TM 1-1730-232-13&P

3-17.7 Wheel Assembly Repair, Model 1730-EG-100 (AVUM)- Continued

WARNING

Never inflate wheel assembly without first checking wheel locknut torques, to insure wheel

locknuts are tightened to specifications. An assembly with missing washers, bolts, nuts or

improperly tightened locknuts could separate under pressure, causing serious injury or death.

f. Install valve stem core and inflate tube.

g. Check tire pressure with tire pressure gauge for 75 psi (51.7 kPa). If pressure is incorrect, inflate or deflate tire to

75 psi (51 7 kPa); if pressure is correct, procedure is completed.

END OF TASK

3-68
TM 1-1730-232-13&P

SECTION VI

AVUM PREPARATION FOR STORAGE OR SHIPMENT

3-18. PREPARATION FOR STORAGE (AVUM).

Preservation procedures for extended storage of the Wheels Assembly are contained in TM 1-1500-204-23

(Series).

3-19. PREPARATION FOR SHIPMENT (AVUM).

Packaging procedures for shipping the Wheels Assembly are contained in TM 1-1500-204-23 (Series).

3-69/(3-70 blank)
TM 1-1730-232-13&P

CHAPTER 4

AVIATION INTERMEDIATE MAINTENANCE (AVIM) INSTRUCTIONS

SECTION I

AVIM REPAIR PARTS, SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT

4-1. COMMON TOOLS AND EQUIPMENT (AVIM).

For authorized common Tools and equipment, refer to the Modified Table of Organization and Equipment (MTOE), CTA

50-970, or CTA 8-100, as applicable to your unit. The following common tool kits are required to support the Ground

Handling Wheels Assembly at the Aviation Intermediate Maintenance (AVIM) level

Tool Number Nomenclature NSN

SC 5180-99-A01 Tool Kit, General Mechanics 5180-00-323-4692

SC 4920-99-A81 Shop Set, AVIM, Hydraulic 4920-00-165-1454

4-2. SPECIAL TOOLS, TMDE, AND SUPPORT EQUIPMENT (AVIM).

No special Tools, TMDE, or support equipment are required to maintain the Ground Handling Wheels Assembly at the

Aviation Intermediate Maintenance (AVIM) level.

4-3. REPAIR PARTS (AVIM).

The Repair Parts used at the AVIM level are listed and illustrated in the Repair Parts and Special Tools List (RPSTL),

contained in Appendix C of this manual.

4-1
TM 1-1730-232-13&P

SECTION II

AVIM SERVICE UPON RECEIPT

4-4. INSPECTION UPON RECEIPT (AVIM).

The required Inspections to be performed upon receipt of the Ground Handling Wheels Assembly are presented in

Chapter 3, Section II. The newly received equipment should be checked against the packing list to ensure that the

assembly is complete, and inspected for any damage incurred during shipping.

4-5. PRELIMINARY SERVICING AND LUBRICATION (AVIM).

The preliminary servicing and lubrication procedures to be performed upon receipt of the Ground Handling Wheels

Assembly are presented in Chapter 3, Section II.

4-6. OPERATIONAL TEST (AVIM).

After the Ground Handling Wheels Assembly is inspected and serviced upon receipt, an operational test is performed in

accordance with procedures in Chapter 2, Section III, Operation Under Usual Conditions.

4-2
TM 1-1730-232-13&P

SECTION III

AVIM PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

4-7. GENERAL PMCS INFORMATION (AVIM).

The Preventive Maintenance Checks and Services (PMCS) procedures are performed on a regular basis at the AVUM

level, to ensure operational readiness of the Ground Handling Wheels Assembly. The instructions presented in Chapter

3, Section III, allow the operator to find defects before they result in serious damage, equipment failure, or personnel

injury. The AVUM level instructions can be used at AVIM level to perform inspections, adjustments, and corrections.

4-8. PMCS PROCEDURES (AVIM).

No specific PMCS procedures are apparent or assigned to the AVIM level The general and specific AVUM PMCS

procedures, and directions for using the procedures, are presented in Chapter 3, Section III.

WARNING

Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles and

gloves, and use only In a well-ventilated area. Avoid contact with skin, eyes, and clothes, and

DO NOT use near open flame or excessive heat. The solvents flash point is 100°F - 130°F (38°C

59°C). If you become dizzy while using cleaning solvent, immediately get fresh air and medical

help. If solvent contacts eyes, immediately flush your eyes with clean water and get medical

help.

4-9. CLEANING AGENTS (AVIM).

An important part of the PMCS procedures is keeping the wheels assemblies clean. Equipment that is covered with

surface dirt, grease, and oil cannot be properly inspected. Keep excess lubricants away from exterior parts that do not

require lubrication.

a. Authorization. Use only those authorized cleaning solvents or agents listed in Appendix D.

b. Application. Use dry cleaning solvent (item 6, Appendix D) on a wiping rag (item 4, Appendix D) to clean

grease, oil, or rust from metal parts. After parts are cleaned, rinse and dry thoroughly.

c. Lubrication. Apply light lubricating oil (item 5, Appendix D)to all polished metal surfaces to inhibit corrosion.

4-10. LEAKAGE DEFINITIONS (AVIM).

It is important to know how fluid leakage affects the status of the Ground Handling Wheels Assembly. Review the

classes of leaks, acceptable leaks, and unacceptable leaks discussed below.

4-3
TM 1-1730-232-13&P

a. Classes of Leaks. Maintenance personnel must know the following types/classes of leaks in order to

determine whether the assembly is operational. Learn these leakage definitions. When in doubt, notify your supervisor.

Class I Seepage of fluid, not great enough to form drops, is indicated by wetness or discoloration.

Class II Leakage of fluid great enough to form drops, but not great enough to cause continuous dripping 

from the Item being Inspected.

Class III Leakage of fluid great enough to form drops that continuously drip from the Item being 

Inspected.

b. Acceptable Leakage. Equipment operation is allowed with minor Class I or II leakage. Fluid levels in an

item/system, affected with such leakage, must be checked more frequently than required In PMCS. When in doubt,

notify your supervisor.

c. Unacceptable Leakage. Class III leaks render the Item unserviceable and must be reported to your

supervisor immediately.

4-11. REPORTING REPAIRS (AVIM).

Immediately after completing AVUM PMCS procedures, if preformed at the AVIM level, report all defects found on DA

Form 2404, Equipment Inspection and Maintenance Worksheet. All defects shall be reported before taking corrective

action, and shall also be entered in the equipment log.

4-4
TM 1-1730-232-13&P

SECTION IV

AVIM TROUBLESHOOTING

4-12. INTRODUCTION TO TROUBLESHOOTING (AVIM).

Troubleshooting procedures for the AVUM level and AVIM level are identical. The information required to identify and

correct most mechanical malfunctions of the Ground Handling Wheels Assembly, is contained in Chapter 3, Section IV.

Component replacement procedures are referenced to Chapter 3, Section V, but repair procedures are referenced to

Chapter 4, Section V. Refer to Chapter 2 for a better understanding of how a system operates. If the location of an item

mentioned in troubleshooting is not is known, see Appendix C to identify locations.

4-13. TROUBLESHOOTING PROCEDURES (AVIM).

The troubleshooting procedures at the AVIM level are identical to the troubleshooting procedures at the AVUM level.

Since AVIM can perform any task performed at AVUM level, the procedures are presented in Chapter 3, Section IV, and

not duplicated in this section. The AVUM level troubleshooting procedures, used at the AVIM level, are provided in

Table 3-2.

4-5
TM 1-1730-232-13&P

SECTION V

AVIM MAINTENANCE PROCEDURES

4-14. INTRODUCTION TO MAINTENANCE PROCEDURES (AVIM).

This section provides repair procedures for the Ground Handling Wheels Assembly, at the Aviation Intermediate

Maintenance (AVIM) level, authorized by the Maintenance Allocation Chart (MAC) provided in Appendix B. A model

number is included with the title of a procedure, unless the procedure applies to all models covered in this manual. The

Repair Parts and Special Tools List (RPSTL), in Appendix C, may be referenced to aid in identifying assemblies and

component parts.

4-15. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 204-050-200-5 (AVIM).

The Ground Handling Wheels Assembly is group number 00 in the MAC. Maintenance performed on Ground Handling

Wheels Assembly, Model 204-050-200-5, at the AVIM level, consists of repair procedures. Repair procedures are

presented for the hydraulic pump assembly and cradle assembly. The wheel assembly is repaired at the AVUM level.

The inspection, replacement, and repair procedures at the AVUM level are contained In Chapter 3, Section V. Observe

all WARNINGS and CAUTIONS while performing the following repair procedures

4-15.1 Hydraulic Pump Repair, Model 204-050-200-5 (AVIM).

The Hydraulic Pump Assembly is group number 0101 in the MAC. Two types of hydraulic pump may be installed on

Ground Handling Wheels Assembly, Model 204-050-200-5. If an older version pump with part number BU0953B fails, it

is not repairable, but upon failure, shall be replaced by a pump with part number 61780. If the newer version pump with

part number 61780 fails, refer to paragraph 4-17.1 for repair procedures.

4-6
TM 1-1730-232-13&P

4-15.2 Cradle Assembly Repair, Model 204-050-2005 (AVIM).

The Cradle Assembly is group number 02 in the MAC. The cradle assembly is the mounting point for all other

components or assemblies installed on Ground Handling Wheels Assembly, Model 204-050-200-5. The cradle assembly

need not be disassembled to replace the fixed nose pin, rear support pin, or lubrication fittings. It must be disassembled

to replace an axle, axle arm, sleeve bushing, trunnion, or clevis. Disassembly may require the removal of the wheels,

hydraulic pump, hydraulic hoses, and hydraulic rams. Refer to Figure 4-1 while performing the following repair

procedures.

This task covers: A. Replace B. Disassemble C. Assemble

INITIAL SETUP

Tools

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

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

Materials

Grease .......................................................................................P/N MIL-G-10924 (item 7, Appendix D)

Repair Parts

(1) Cradle ............................... 204-050-157-7 (14) Pin, Cotter ........................ MS242665-300

(2) Axle ................................... 205-050-158-11 (15) Fitting................................ MS15002-1

(3) Axle ................................... 205-050-158-12 (16) Fitting ............................... MS15001-2

(4) Arm ................................... 204-050-160-1 (17) Pin, Release ..................... 204-050-163-3

(5) Bushing, Sleeve................. 204-050-159-1 (18) Pin, Connection ................ 204-050-154-1

(6) Bolt.................................... 204-050-167-1 (19) Pin, Support ..................... 204-050-164-1

(7) Washer ............................. AN960-616L (20) Spring ............................... 204-050-133-1

(8) Nut..................................... MS21042L6 (21) Pin..................................... MS171598

(9) Trunnion ........................... 204-050-161-1 (22) Pin, Support, Nose ........... 1730-EG-103

(10) Setscrew ......................... MS51964-94 (23) Bushing, Sleeve ............... 21-010B15-5-51

(11) Clevis, Rod End, LH......... 204-050-170-1 (24) Bushing, Support Pin ........ 204-050-166-3

(12) Pin, Clevis ...................... 204-050-200-13 (33) Setscrew ........................... MS51964-55

(13) Fitting, Lubrication .......... MS15001-4

Personnel Required

MOS 67

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4-7
TM 1-1730-232-13&P

4-15.2 Cradle Assembly Repair, Model 204-050-200-5 (AVIM) Continued

Figure 4-1. Cradle Assembly Repair, Model 204-050-200-5 (AVIM).

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4-8
TM 1-1730-232-13&P

4-15.2 Cradle Assembly Repair, Model 204-050-200-5 (AVIM) Continued

A. REPLACE CRADLE ASSEMBLY COMPONENTS

The fixed nose pin, rear support pin, and lubrication fittings can be removed and installed, without disassembling the

cradle assembly

1. Replace fixed nose pin as follows

a. Remove the spring pin (21).

b. Remove fixed nose pin (22).

c. Remove sleeve bushing (23).

d. Install new sleeve bushing (23).

e. Install new fixed nose pin, with chamfer facing out and down, in hole of cradle making sure pin seats

fully

f. Line drill new fixed nose pin with a 0.187 Inch diameter drill.

g. Install new spring pin (21).

2. Replace rear support pin as follows

a. Remove top (vertical) lubrication fitting (16) and screw-out connection pin (18) from cradle.

b. Slide release pin (17) from cradle.

c. Slide support pin (19) from cradle and retrieve spring (20), for use when installing new support pin.

d. Remove support pin bushing (24), if end hole is excessively worn.

e. Install new support pin bushing (24), if required.

f. Slide spring (20) and new support pin (19) into lower hole in cradle.

g. Slide release pin (17) into upper hole of cradle

h. Insert and screw-in connection pin (18) in top hole of cradle; move release pin (17) and support pin

(19) until connection pin drops into holes in the release pin and support pin.

i. Install lubrication fitting (16) in top hole of cradle, where connection pin (18) is installed.

3. Replace lubrication fittings as follows:

a. Remove broken or damaged lubrication fittings (15) or (16) from cradle.

b. Install new lubrication fitting (15) or (16) In cradle and tighten.

c. Remove broken or damaged lubrication fittings (13) from clevis pin (12).

d. Install new lubrication fitting (13) in clevis pin (12).

e. Apply grease (item 7, Appendix D) to lubrication fitting with a grease gun.

4. To replace other cradle components, or entire cradle, disassemble cradle assembly as presented below.

GO TO NEXT PAGE

4-9
TM 1-1730-232-13&P

4-15.2 Cradle Assembly Repair, Model 204-050-200-5 (AVIM) Continued

B. DISASSEMBLE CRADLE ASSEMBLY

NOTE

Cradle disassembly requires removal of the wheels, hydraulic pump, hoses, and rams. The

required removal procedures are referenced to appropriate paragraphs

Disassemble cradle assembly as follows:

1. Prepare Ground Handling Wheels Assembly for cradle disassembly.

a. Remove all hydraulic pressure from the hydraulic system by rotating the hydraulic pump control

handle counterclockwise.

b. It is not necessary to drain the hydraulic reservoir.

2. Remove both wheel assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-15.6.

3 Remove two hydraulic hoses from tee fitting and hydraulic ram assemblies; drain hydraulic fluid Into drip pan or 

suitable container.

4. Remove hydraulic pump assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-15.4.

5. Remove hydraulic ram assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-15.5.

6. Remove trunnion (9) from cradle (1), with one ram still installed on trunnion, by sliding from cradle.

7. Remove axle (2) as follows:

a. Remove axle nuts (8), washers (7), and bolts (6) from arm (4).

b. Remove axle (2) and axle arm (4) by sliding from sleeve bushing (5).

c. Discard damaged axle (2) or arm (4) and replace with new axle or arm.

8. Remove axle (3) as follows:

a. Remove axle nuts (8), washers (7), and bolts (6), from arm (4).

b. Remove axle (3) and axle arm (4) by sliding from axle sleeve bushing (5).

c. Discard damaged axle (3) or arm (4) and replace with new axle or arm

9. Remove axle sleeve bushing (5) by sliding from cradle (1).

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4-10
TM 1-1730-232-13&P

4-15.2 Cradle Assembly Repair, Model 204-050200-5 (AVIM) Continued

C. ASSEMBLE CRADLE ASSEMBLY

Assemble cradle assembly as follows.

1. Install steel axle sleeve bushing (5) by sliding into aluminum cradle (1)

2. Install axle (3) as follows:

a. Slide axle (3) and axle arm (4) over axle sleeve bushing (5).

b. Align holes and insert bolts (6) through holes in axle arm (4), axle (3), and axle sleeve bushing (5)

c. Install washers (7), and nuts (8) on bolts (6); tighten.

NOTE

The axle arms must point in the same direction before Installing attaching hardware in following

step.

3. Install axle (2) as follows:

a. Slide axle (2) and axle arm (4) over axle sleeve bushing (5).

b. Ensure that axle arms point in the same direction.

c. Align holes and insert bolts (6) through holes in axle arm (4), axle (3), and axle sleeve bushing (5).

d. Install washers (7), and nuts (8) on bolts (6); tighten.

NOTE

Depending on degree of disassembly, the trunnion may or may not have one ram already

installed.

4. Install trunnion (9) by sliding into cradle (1).

NOTE

If no ram is installed in trunnion, perform the following step on both rams.

5. Install a hydraulic ram assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-15.5.

6. Install hydraulic pump assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-15.4.

7. Install both wheel assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-15.6.

END OF TASK

4-11
TM 1-1730-232-13&P

4-16. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 214-706-104-101 (AVIM).

The Ground Handling Wheels Assembly is group number 00 In the MAC. Maintenance performed on Ground Handling

Wheels Assembly, Model 214-706-104-101, at the AVIM level, consists of repair procedures. Repair procedures are

presented for the hydraulic pump assembly and cradle assembly. The wheel assembly is repaired at the AVUM level.

The inspection, replacement, and repair procedures at the AVUM level are contained in Chapter 3, Section V. Observe

all WARNINGS and CAUTIONS while performing the following repair procedures.

4-16.1 Hydraulic Pump Repair, Model 214-706-104-101 (AVIM).

The Hydraulic Pump Assembly is group number 0101 in the MAC. Two types of hydraulic pump may be installed on

Ground Handling Wheels Assembly, Model 214-706-104-101. If the older version pump with part number BU0953B fails,

it is not repairable and shall be replaced by pump with part number 61780 upon failure. If the newer version pump with

part number 61780 fails, refer to paragraph 4-17.1 for repair procedures.

4-12
TM 1-1730-232-13&P

4-16.2 Cradle Assembly Repair, Model 214-706-104-101 (AVIM).

The Cradle Assembly is group number 02 in the MAC. The cradle assembly is the mounting point for all other

components or assemblies Installed on Ground Handling Wheels Assembly, Model 214-706-104-101 The cradle

assembly need not be disassembled to replace the fixed nose pin adapter, quick release pin, or lubrication fittings. The

cradle assembly must be disassembled to replace an axle, sleeve bushing, trunnion, or clevis Disassembly may require

the removal of the wheels, hydraulic pump, hydraulic hoses, and hydraulic rams Refer to Figure 4-2 while performing the

following repair procedures.

This task covers: A. Replace B. Disassemble C. Assemble

INITIAL SETUP

Tools

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

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

Materials

Grease........................................................................................P/N MIL-G-10924 (item 7, Appendix D)

Repair Parts

(1) Cradle ............................... 214-050-011-103 (17) Pin, Release ..................... MS17984C824

(2) Axle .................................. 214-050-022-1 (24) Bushing, Clevis ................ 214-050-011-5

(3) Axle ................................... 214-050-022-3 (25) Bushing, Clevis ................ 214-050-011-7

(5) Spacer, Sleeve ................. 214-050-014-001 (26) Bushing, Clevis ................ 214-050-011-9

(6) Bolt ................................... LWB22-5-34 (27) Adapter, Support .............. 209-050-129-101

(7) Washer ............................. AN960-616L (28) Bolt.................................... MS20004H24

(8) Nut, Locking ...................... MS21042L5 (29) Washer.............................. 140-007-17S14D5

(9) Trunnion. ........................... 214-050-012-1 (30) Nut .................................... NAS577B4A

(10) Set Screw ....................... MS51964-94 (31) Retainer, Nut .................... NAS578-4B

(11) Clevis .............................. 204-050-170-1 (33) Setscrew ........................... MS51964-55

(12 Pin, Clevis ........................ 204-050-200-13 (34) Rope, Wire ....................... SE2939-1455

(13) Fitting, Lubrication .......... MS15001-4 (35) Washer.............................. AN960-516L

(14) Pin, Cotter........................ MS24665-283 (36) Nut, Locking ..................... MS21042L6

(15) Fitting .............................. MS1500 2-1 (37) Bolt.................................... MS21250-06030

(16) Fitting ............................. MS15001-2 (42) Sleeve, Wire Rope ............ 2842687-3

Personnel Required

MOS 67

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4-13
TM 1-1730-232-13&P

4-16.2 Cradle Assembly Repair, Model 214-706-104-101 (AVIM)- Continued

Figure 4-2. Cradle Assembly Repair, Model 214-706-104-101 (AVIM).

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4-14
TM 1-1730-232-13&P

4-16.2 Cradle Assembly Repair, Model 214-706-104-101 (AVIM) - Continued

A. REPLACE CRADLE ASSEMBLY COMPONENTS

The fixed nose pin adapter, quick release pin, and lubrication fittings can be removed and installed, without

disassembling the cradle assembly

1. Replace fixed nose pin adapter as follows:

a. Unscrew both bolts (28) from support pin adapter (27) and cradle (1).

b. Pull support pin adapter (27) from cradle nose.

c Remove two nut retainers (31).

d. Attach support pin adapter (27) to cradle (1) by installing two nut retainers (31), nuts (30), washers (29), 

and bolts (28).

2. Replace quick release pin as follows

a. Remove quick release pin (17) by cutting wire rope (34) from handle of cradle assembly (1).

b. Prepare 8 inches of wire rope (34), by sliding two wire sleeve swages (42) onto wire rope and moving to 

center.

c. Pass wire rope (34) through hole in quick release pin (17) and form a i-inch diameter loop.

d. Slide a wire sleeve swage (42) over end of wire rope until flush; crimp wire sleeve swage (42) until tight.

e. Pass wire rope (34) through handle of cradle assembly (1) and form a 1 7 inch diameter loop.

f. Slide a wire sleeve swage (42) over end of wire rope until flush; crimp wire sleeve swage (42) until tight.

3. Replace bushings.

a. Remove bushings (24),(25),(26).

b. Install new bushings (24),(25),(26).

4. Replace lubrication fittings as follows:

a. Remove broken or damaged lubrication fittings (15) or (16) from cradle.

b. Install new lubrication fitting (15) or (16) in cradle and tighten

c. Remove broken or damaged lubrication fittings (13) from clevis pin (12).

d. Install new lubrication fitting (13) in clevis pin (12).

e. Apply grease (item 7, Appendix D) to lubrication fitting with a grease gun.

5. To replace other cradle components or entire cradle, disassemble cradle assembly as presented in B below.

GO TO NEXT PAGE

4-15
TM 1-1730-232-13&P

4-16.2 Cradle Assembly Repair, Model 214-706-104-101 (AVIM) - Continued

B. DISASSEMBLE CRADLE ASSEMBLY

NOTE

Cradle disassembly requires removal of the wheels, hydraulic pump, hoses, and rams. The

required removal procedures are referenced to appropriate paragraphs.

Disassemble cradle assembly as follows:

1. Prepare Ground Handling Wheels Assembly for cradle disassembly.

a. Remove all hydraulic pressure from the hydraulic system by rotating the hydraulic pump control handle 

counterclockwise.

b. It is not necessary to drain the hydraulic reservoir.

2. Remove both wheel assemblies in accordance with procedure in Chapter 3, Section V, paragraph 316.6.

3. Remove two hydraulic hoses from tee fitting and hydraulic ram assemblies, drain hydraulic fluid into drip pan or 

suitable container.

4. Remove hydraulic pump assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-16.4.

5. Remove hydraulic ram assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-16.5.

6. Remove trunnion (9) from cradle (1), with one ram still installed on trunnion, by sliding from cradle

7. Remove axle (2) and axle (3) as follows:

a. Remove axle nuts (8), washers (35), and bolts (6) from sleeve spacer (5).

b. Remove axle nuts (36), washers (7), and bolts (37) from axle (3).

c. Remove axle (2) and sleeve spacer (5) by sliding from axle (3).

d. Remove axle (3) by sliding from cradle (1).

e. Discard damaged axle (2) or sleeve spacer (5) and replace with new axle or sleeve spacer.

f. Discard damaged axle (3) and replace with new axle.

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4-16
TM 1-1730-232-13&P

4-16.2 Cradle Assembly Repair, Model 214-706-104-101 (AVIM)- Continued

C. ASSEMBLE CRADLE ASSEMBLY

Assemble cradle assembly as follows:

NOTE

The axle arms must point in the same direction before Installing attaching hardware in

following step.

1. Install axle (2) and axle (3) as follows:

a. Install axle (3) by sliding into cradle (1).

b. Install sleeve spacer (5) by sliding onto axle (3).

c. Install axle (2) by sliding into axle (3).

d. Ensure that axle arms point in the same direction

e. Align bolt holes and ream holes, in the side without the spacer, to 0.378 to 0.384 inches, if necessary.

f. Insert bolt (37) through holes in axle (3) and axle (2).

g. Install washers (7) and nut (36) on bolts (37); tighten.

h. Align bolt holes in axles (3), axle (2), and sleeve spacer (5) Ream holes to 0.316 to 0 322 inches, if 

necessary.

i. Insert bolt (6) through holes in sleeve spacer (5), axle (3) and axle (2).

j. Install washers (35) and nut (8) on bolt (6); tighten.

NOTE

Trunnion may or may not have a one ram already Installed.

2. Install trunnion (9) by sliding into cradle (1).

NOTE

If no ram is installed in trunnion, perform the following step on both rams.

3. Install a hydraulic ram assembly in accordance with procedure in Chapter 3, Section V, paragraph 316.5.

4. Install hydraulic pump assembly in accordance with procedure in Chapter 3, Section V, paragraph 316.4.

5. Install both wheel assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-16.6.

END OF TASK

4-17
TM 1-1730-232-13&P

4-17. GROUND HANDLING WHEELS ASSEMBLY MAINTENANCE, Model 1730-EG-100 (AVIM).

The Ground Handling Wheels Assembly is group number 00 in the MAC. Maintenance performed on Ground Handling

Wheels Assembly, Model 1730-EG-100, at the AVIM level, consists of repair procedures. Repair procedures are

presented for the hydraulic pump assembly and cradle assembly The wheel assembly is repaired at the AVUM level.

The inspection, replacement, and repair procedures at the AVUM level are contained in Chapter 3, Section V Observe

all WARNINGS and CAUTIONS while performing the following repair procedures.

4-18
TM 1-1730-232-13&P

4-17.1 Hydraulic Pump Repair (Typical - All Wheel Assembly Models).

The Hydraulic Pump Assembly is group number 0101 In the MAC. A defective pump removed from any model Ground

Handling Wheels Assembly, can only be replaced with a hydraulic pump with part number 61780. This repair procedure

applies to pump part number 61780 and may be referenced from paragraphs 4-15-1 and 4-16-1. A mounting plate and

hydraulic fitting guard are part of the pump assembly. Refer to Figure 4-3 while performing the repair procedures.

This task covers:

a. Repair b. Test

INITIAL SETUP

Tools

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

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

Gauge, 10,000 PSI

Materials

Goggles and Gloves Cleaning Solvent (item 6, Appendix D)

Teflon Tape (item 8, Appendix D) Hydraulic Fluid (Item 1, Appendix D)

Repair Parts Part No. Repair Parts Part No

Kit, Repair Parts 300487 (21) Body., Pump 61295

(1) Ring, Retaining 211743 (22) Valve, Relief, Press 21278-80

(2) Pin, Straight 211742 (23) Filter, Stick 12205

(3) Handle, Manual 61813-GR12 (24) O-Ring 211495

(4) Grip, Handle 206731 (25) Screw, Set 10556

(5) Valve Screw 305975 (26) Knob 21643-NP

(6) Bushing, Pipe 10676 (27) Reservoir Assembly 307601

(7) Valve, Metering . 305993 (28) Tie Rod . 213847

(8) Piston, Assembly . 211468 (29) Cap, Dust 52711

(9) Washer, Backup 213987 (30 Gasket 212739

(10) O-Ring 10271 (31) Nut 10204

(11) Ball, Steel 10378 (32) Decal 'Do Not Remove'. 215907

(12) Ball 12223 (33) Ball, Nylon 15528

(13) Valve, Release. 308617 (34) O-Ring 12557

(14) O-Ring 10267 (35) Plug, Pipe 10970

(15) Washer, Backup 15085 (36) Decal, Warning 308473

(16) Washer, Copper 14874 (38) Plate, Mounting 47139-GR12

(17) Spring, Compression 10444 (39) Guard, Hyd Fitting 420094-GR12

(18) Spacer 297S2 (40) Bolt MS9072510

(19) Spring, Compression 211797 (41) Nut MS51967-2

(20) Ball, Steel . 10375

Personnel Required

MOS 67

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4-19
TM 1-1730-232-13&P

4-17.1 Hydraulic Pump Repair (Typical - All Wheel Assembly Models) - Continued

Figure 4-3. Hydraulic Pump Assembly Repair, Part Number 61780

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4-20
TM 1-1730-232-13&P

4-17.1 Hydraulic Pump Repair (Typical - All Wheel Assembly Models) - Continued

A. REPAIR HYDRAULIC PUMP

Repair of the hydraulic pump assembly, with part number 61780, consists of disassembly and assembly New

components parts from repair kit 300487 are Installed during assembly.

1. Disassemble hydraulic pump.

CAUTION

A free floating steel ball is located under the piston assembly in the pump body. To prevent

losing or damaging the steel ball, ensure that pump body is flat on the workbench before

removing the manual control handle or piston assembly.

a. Remove retaining rings (1), straight pins (2), and detach handle assembly (3) from pump body (21).

b. Remove piston assembly (8), backup washer (9), and O-Ring (10) from pump body (21).

c. Place hand over hole in pump body, where piston assembly was just removed, and rotate pump body 180 

degrees. Catch the steel ball (11) and check it for corrosion or damage

d. Remove dust protective cap (29) and gasket (30), and drain hydraulic fluid from reservoir assembly (27).

e. Remove nut (31), tie rod (28), reservoir assembly (27), and O-Ring (24).

f. Remove stick filter (23) and O-Ring (34) from pump body (21).

g. Remove pressure relief valve (22) from pump body (21).

h. Loosen setscrew (25) and remove safety release valve knob (26).

i. Unscrew safety release valve (13), backup washer (15), O-Ring (14), nylon ball (33), and ball (12) from 

pump body (21).

j. Remove pipe bushing (6) and metering valve (7) from pump body (21).

k. Remove valve screw (5), copper washer (16), compression spring (17), steel ball (11), spacer (18), 

compression spring (19), and steel ball (20).

I. Remove nut (41), bolt (40), and mounting plate (38) from pump body.

m. Remove nut (41), bolt (40), and hydraulic fitting guard (39) from pump body.

2. Clean hydraulic pump components.

WARNING

Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles and

gloves, and use only In a well-ventilated area. Avoid contact with skin, eyes, and clothes, and

DO NOT use near open flame or excessive heat. The solvents flash point is 100°F 130°F (38°C

59°C) if you become dizzy while using cleaning solvent, immediately get fresh air and medical

help. If solvent contacts eyes, immediately flush your eyes with clean water and get medical

help.

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4-21
TM 1-1730-232-13&P

4-17.1 Hydraulic Pump Repair (Typical - All Wheel Assembly Models) - Continued

a. Thoroughly clean exterior and interior of pump body (21), using dry cleaning solvent (item 6, Appendix D).

Inspect to verify serviceability and replace pump body if defective.

b. Clean all removed components that are to be reinstalled. Inspect to verify serviceability and replace 

components if defective.

3. Assemble hydraulic pump, using new parts from repair kit 300487.

a. Install hydraulic fitting guard (39) on pump body with bolt (40) and nut (41).

b. Install mounting plate (38) on pump body with bolt (40) and NUT (41).

c. Install steel ball (20). Install compression spring (19) in spacer (18) and install into pump body Install steel

ball (11), compression spring (17), copper washer (16), and valve screw (5). Torque to 300/370 Inch pounds.

d. Install metering valve (7) in pump body (21), pipe bushing (6) in metering valve (7), and pipe plug (35) 

and O-Ring (34) in pipe bushing (6). Use Teflon Tape (item 8, Appendix D).

e. Install ball (12), safety release valve (13), nylon ball (33), O-Ring (14), backup washer (15), in pump body 

(21).

f. Install safety release valve knob (26) and tighten setscrew (25).

NOTE

The pressure relief valve is factory set in the range of 8300 to 8800 psi. If pressure is outside

this range during test in B below, the pump must be disassembled and the pressure relief

valve replaced.

g. Install pressure relief valve (22) in pump body (21).

h. Install stick filter (23) and O-Ring (34) (as an assemble) in pump body (21).

i. Install tie rod (28) in pump body (21); seat O-Ring (24) and reservoir assembly (27) in pump body and 

attach with nut (31). Torque to 250 inch pounds j. Fill reservoir assembly (27) with hydraulic fluid (item 1, 

Appendix D) and install gasket (30) and dust protective cap (29).

k. Drop ball (11) in top hole of pump body (21).

I. Install O-Ring (10), backup washer (9), and piston assembly (8) in top hole of pump body (21).

m. Attach handle assembly (3) to pump body (21), by installing two straight pins (2) and four retaining rings 

(1).

B. TEST HYDRAULIC PUMP

NOTE

The pressure relief valve is inside the hydraulic pump. If unloading pressure is incorrect

during test, the pump must be disassembled to replace pressure relief valve.

1. Testing Hydraulic Pump.

a. Fill hydraulic pump reservoir to proper level with hydraulic fluid (item 1, Appendix D).

b. Connect a 10,000 psi gage to outlet hole in the end of the pump.

c. Operate the pump until pressure builds up and pressure relief valve unloads between 8300 to 8800 psi.

d. If setting incorrect, disassemble pump and replace pressure relief valve.

END OF TASK

4-22
TM 1-1730-232-13&P

4-17.2 Cradle Assembly Repair, Model 1730-EG-100 (AVIM).

The Cradle Assembly is group number 02 in the MAC. The cradle assembly is the mounting point for all other

components or assemblies installed on Ground Handling Wheels Assembly, Model 1730-EG-100. The cradle assembly

need not be disassembled to replace the fixed nose pin, quick release pin, or lubrication fittings The cradle assembly

must be disassembled to replace an axle, sleeve bushing, trunnion, or clevis. Disassembly may require the removal of

the wheels, hydraulic pump, hydraulic hoses, and hydraulic rams. Refer to Figure 4-4 while performing the following

repair procedures.

This task covers:

a. Repair b. Disassemble c. Assemble

INITIAL SETUP

Tools

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

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

Drip Pan

Materials

Grease (item 7, Appendix D)

Repair Parts

(1) Cradle........................................ 1730-EG-101-1 (17) Pin, Release...................................... MS17984C824

(2) Axle, Outer. ............................... 1730-EG-107 (23) Bushing, Pin ..................................... NAS77A8-144

(3) Axle, inner ................................ 1730-EG-109 (24) Bushing, Clevis ................................ NAS77A8-070P

(5) Spacer, Sleeve. ......................... 1730-EG-108 (32) Plug, Alum or Brass .......................... 0.19DIAX0.13

(6) Bolt ........................................... MS21250-05036 (33) Setscrew .......................................... MS51964-55

(7) Washer .....................................AN960-616L (34) Rope, Wire .......................................SE2939-1455

(8) Nut, Locking .............................. MS21042L6 (35) Washer .............................................AN960-516L

(9) Trunnion . .................................. 1730-EG-111 (36) Nut, Locking . .................................... MS21042L6

(10) Set Screw ................................ MS51964-94 (37) Bolt ................................................... MS21250-06030

(11) Clevis . .................................... 1730-EG-112 38) Pin ..................................................... 1730-EG-103

(12) Pin, Clevis. .............................. 1730-EG-110 39) Pin, Spring ......................................... MS171598

(13) Fitting, Lubrication .................. MS15001-4 (40)Bushing.............................................. 1730-EG-101-2

(14) Pin, Cotter ............................... MS24665-283 (41) Bushing ............................................ 1730-EG-101-3

(15 Fitting ....................................... MS15002-1 (42) Swaging Sleeve, Wire Rope.............. 2842687-3

(16) Fitting . .................................... MS15001-2

Personnel Required

MOS 67

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4-23
TM 1-1730-232-13&P

4-17.2 Cradle Assembly Repair, Model 1730-EG-100 (AVIM) - Continued

Figure 4-4. Cradle Assembly Repair, Model 1730-EG-100 (AVIM).

GO TO NEXT PAGE

4-24
TM 1-1730-232-13&P

4-17.2 Cradle Assembly Repair, Model 1730-EG-100 (AVIM) - Continued

A. REPLACE CRADLE ASSEMBLY COMPONENTS

The fixed nose pin, quick release pin, and lubrication fittings can be removed and installed, without disassembling the

cradle assembly.

1. Replace fixed nose pin as follows:

a. Remove the spring pin (39).

b. Remove fixed nose pin (38).

c. Remove sleeve bushing (23).

d. Install new sleeve bushing (23).

e. Install new fixed nose pin (38), with chamfer out and down, making sure pin seats fully In the hole.

f. Line drill new fixed nose pin with a 0 187 inch diameter drill g Install new spring pin (39).

2. Replace quick release pin as follows:

a. Remove quick release pin (17) by cutting wire rope (34) from handle of cradle assembly (1)

b. Prepare 8 inches of wire rope (34), by sliding two wire sleeve swages (42) onto wire rope and moving to 

center

c. Pass wire rope (34) through hole in quick release pin (17) and form a 2-inch diameter loop.

d. Slide a wire sleeve swage (42) over end of wire rope until flush; crimp wire sleeve swage (42) until tight.

e. Pass wire rope (34) through handle of cradle assembly (1) and form a 1 7 inch diameter loop.

f. Slide a wire sleeve swage (42) over end of wire rope until flush, crimp wire sleeve swage (42) until tight

3. Replace bushings.

a. Remove two clevis bushings (24) from cradle (1)

b. Install two new clevis bushings (24) in cradle (1).

4. Replace lubrication fittings as follows:

a. Remove broken or damaged lubrication fittings (15) or (16) from cradle.

b. Install new lubrication fitting (15) or (16) in cradle and tighten.

c. Remove broken or damaged lubrication fittings (13) from clevis pin (12).

d. Install new lubrication fitting (13) in clevis pin (12).

e. Apply grease (item 7, Appendix D) to lubrication fitting with a grease gun.

5. To replace other cradle components or entire cradle, disassemble cradle assembly as presented below

GO TO NEXT PAGE

4-25
TM 1-1730-232-13&P

4-17.2 Cradle Assembly Repair, Model 1730-EG-100 (AVIM) - Continued

B. DISASSEMBLE CRADLE ASSEMBLY

NOTE

Cradle disassembly requires removal of the wheels, hydraulic pump, hoses, and rams.

Required removal procedures are referenced to appropriate paragraphs

Disassemble cradle assembly as follows:

1. Prepare Ground Handling Assembly for cradle disassembly.

a. Remove all hydraulic pressure from the hydraulic system by rotating the hydraulic pump control handle 

counterclockwise.

b. It is not necessary to drain the hydraulic reservoir.

2. Remove both wheel assemblies In accordance with procedure in Chapter 3, Section V, paragraph 3-17.6.

3. Remove two hydraulic hoses from tee fitting and hydraulic ram assemblies; drain hydraulic fluid into drip pan or 

suitable container.

4. Remove hydraulic pump assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-17.4.

5. Remove hydraulic ram assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-17.5.

6. Remove axle (2) or axle (3) as follows:

a. Remove axle nuts (8), washers (35), and bolts (6) from sleeve spacer (5).

b. Remove axle nuts (36), washers (7), and bolts (37) from axle (3).

c. Remove axle (2) and sleeve spacer (5) by sliding from axle (3).

d. Remove axle (3) by sliding from cradle (1).

e. Discard damaged axle (2) or sleeve spacer (5) and replace with new axle or sleeve spacer.

f. Discard damaged axle (3) and replace with new axle.

7. Remove bushing (40) from cradle (1).

GO TO NEXT PAGE

4-26
TM 1-1730-232-13&P

4-17.2 Cradle Assembly Repair, Model 1730-EG-100 (AVIM) - Continued

C. ASSEMBLE CRADLE ASSEMBLY

Assemble cradle assembly as follows

1. Install bushing (40) into cradle (1).

NOTE

The axle arms must point in the same direction before installing attaching hardware in

following step.

2. Install axle (2) and axle (3) as follows:

a. Install axle (3) by sliding into bushing (40).

b. Install sleeve spacer (5) by sliding onto axle (3).

c. Install axle (2) by sliding into axle (3)

d. Ensure that axle arms point in the same direction.

e. Align bolt (37) holes and line ream holes, in the side without the spacer (5), to 0.378 to 0.384 Inches, if 

necessary.

f. Install washer (35) on bolt (37). Insert bolt (37) through holes in axle (3) and axle (2).

g. Install washer (7) and nut (36) on bolt (37); tighten.

h. Align bolt holes In axle (3), axle (2), and sleeve spacer (5). Line ream holes to 0.316 to 0.322 inches, if 

necessary.

i. Install washer (35) on bolt (6). Insert bolt (6) through holes in sleeve spacer (5), axle (3) and axle (2).

j. Install washer (35) and nut (8) on bolt (6); tighten.

NOTE

Trunnion may or may not have a one ram already Installed.

3. Install bushing (41) into cradle (1).

4. Install trunnion (9) by sliding into bushing (41).

NOTE

If no ram is installed in trunnion, perform the following step on both rams.

5. Install a hydraulic ram assembly in accordance with procedure in Chapter 3, Section V, paragraph 3-17.5, 

subparagraph B.

6. Install Hydraulic Pump Assembly In accordance with procedure in Chapter 3, Section V, paragraph 3-17.4, 

subparagraph B.

7. Install both Wheel Assemblies in accordance with procedure in Chapter 3, Section V, paragraph 3-17.6.

8. Service the Wheel Assemblies, in accordance with procedures in Chapter 3, Section V, paragraph 3-17.6, 

subparagraph C.

9. Service the Hydraulic Pump in accordance with procedure In Chapter 3, Section V, paragraph 3-17 4, 

subparagraph C.

END OF TASK

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SECTION VI

AVIM PREPARATION FOR STORAGE OR SHIPMENT

4-18. PREPARATION FOR STORAGE (AVIM).

Preservation procedures for extended storage of the Ground Handling wheels Assembly are contained in TM 1-1500-

204-23 (Series).

4-19. PREPARATION FOR SHIPMENT (AVIM).

Packaging procedures for shipping the Ground Handling Wheels Assembly are contained in TM 1-1500-204-23 (Series).

4-28
TM 1-1730-232-13&P

APPENDIX A

REFERENCES

A-1. SCOPE.

This appendix list forms, field manuals, technical manuals, and other publications referenced in this manual. The

referenced publications apply to operation, organizational maintenance, direct support and general support maintenance

of the Ground Handling Wheels Assembly.

A-2. DEPARTMENT OF THE ARMY PAMPHLETS.

DA Pam 25-30 Consolidated Index of Army Publications and Blank Forms

DA Pam 738-750 The Army Maintenance Management Systems (TAMMS)

DA Pam 738-751 Functional Users Manual for the Army Maintenance Management Systems -

Aviation (TAMMS-A)

A-3. SUPPLY CATALOGS.

None.

A-4. FORMS.

DA Form 1222 Routing Slip

DA Form 2028 Recommended Changes to Publications and Blank Forms

DA Form 2028-2 Recommended Changes to Equipment Technical Manuals

DA Form 2258 De-preservation Guide for Vehicles and Equipment

DA Form 2404 Equipment Inspections and Maintenance Worksheet

DA Form 2408-9 Equipment Control Record

DD Form 2407 Maintenance Request

SF 368 Product Quality Deficiency Report

A-5. ARMY REGULATIONS.

AR 310-25 Dictionary of United States Army Terms

AR 310-50 Authorized Abbreviations and Brevity Codes

A-1
TM 1-1730-232-13&P

APPENDIX A

REFERENCES-cont

A-6. TECHNICAL MANUALS.

TM 9-214 Procedures for Destruction of Army Equipment to Prevent Enemy Use

Inspection, Care, and Maintenance of Anti-friction Bearings

TM 9-2610-200-14 Operator, Organizational, Direct Support, and General Support Maintenance

Care Maintenance, Repair, and Inspection of Pneumatic Tires and Inner

Tubes

TM 38-230-2 Packing of Materiel: Preservation (Volume 1 and Volume 2)

TM-1-1500-204-23 (Series) General Aircraft Maintenance Manual

A-2
TM 1-1730-232-13&P

APPENDIX B

MAINTENANCE ALLOCATION CHART

SECTION I INTRODUCTION

B-1. AVIATION MAINTENANCE ALLOCATION CHART.

The Maintenance Allocation Chart (MAC) assigns maintenance functions in accordance with the Aviation Maintenance

concept for Army aviation. The maintenance levels are Aviation Unit Maintenance (AVUM), Aviation Intermediate

Maintenance (AVIM), and Depot Maintenance, described below. These maintenance levels are column headings in

Maintenance Allocation Chart, Table B-1.

AVUM corresponds to an O code in 3rd position of SMR code in the Repair Parts and Special

Tools List (RPSTL).

AVIM corresponds to an F code in 3rd position of SMR code in the Repair Parts and Special

Tools List (RPSTL).

DEPOT corresponds to a D code in 3rd position of SMR code in the Repair Parts and Special

Tools List (RPSTL).

a. Aviation Unit Maintenance (AVUM). The AVUM activities are staffed and equipped to perform high frequency

"On-Aircraft" maintenance tasks required to keep aircraft systems or support systems In a serviceable condition.

Assignment of maintenance tasks to divisional company size aviation units depends on the overall maintenance

capability of the division, the requirement to conserve personnel and equipment resources, and air mobility requirements.

(1) Maintenance Capability. The maintenance capability of the AVUM is governed by the Maintenance

Allocation Chart (MAC). The maintenance capability is limited by the amount and complexity of ground support

equipment (GSE), facilities required, authorized manning strength, and critical skills available.

(2) Authorized Spares. The range and quantity of authorized spare modules/components will be consistent

with the mobility requirements dictated by the air mobility concept.

(3) Task Assignment to Company Size Aviation Units. Company size units perform preventive maintenance,

maintenance repair, and replacement tasks necessary to sustain a high level of aircraft operational readiness.

(a) The maintenance inspections and servicing tasks include preflight, daily, intermediate, periodic or

phased, and special inspections authorized by the MAC or higher headquarters.

(b) Applicable technical manual troubleshooting tasks identify the cause of equipment or system

malfunctions. Test, measurement, and diagnostic equipment (TMDE) is used as required.

(c) If no complex adjustments or system alignment is required, removal/installation tasks are used to

replace worn or damaged modules/components. All tasks are performed with available skills, tools, and ground support

equipment.

B-1
TM 1-1730-232-13&P

(d) The hydraulic system is inspected, serviced, and checked for operation, capacity, and pressure

requirement.

(e) The manufacture of parts is limited to those items which can be fabricated with tools and equipment

found in current air mobile tool and shop sets.

(f) Unserviceable modules/components, and end items beyond the repair capability of AVUM, are sent

to the support AVIM.

(4) Tasks Assigned to Less than Company Size Aviation Units. Aviation elements organic to brigade, group,

battalion headquarters, and detachment size units are normally small and have less than 10 aircraft assigned.

(a) Maintenance tasks performed by these units will be those which can be accomplished by the

aircraft crew chief or assigned aircraft repairman.

(b) Tasks will normally be limited to preventive maintenance, inspections, servicing, spot painting,

module/component fault diagnosis, and replacement of selected modules/components.

(c) Repair tasks will normally be accomplished by the support AVIM unit.

b. Aviation Intermediate Maintenance (AVIM). The AVIM activities are staffed and equipped to perform mobile,

responsive "One-Stop" maintenance support. The AVIM activities may perform all maintenance functions authorized at

the AVUM level. Authorized maintenance includes replacement and repair of components or end items, which can be

accomplished efficiently with available skills, tools, and equipment. Maintenance functions which are not conducive to

sustaining air mobility will be assigned to depot maintenance. Repair of equipment for return to user will emphasize

support or operational readiness requirements.

(1) Maintenance Capability. The maintenance capability of the AVIM is governed by the Maintenance

Allocation Chart (MAC) and limited by the amount and complexity of ground support equipment (GSE), facilities required,

authorized manning strength, and critical skills available.

(2) Authorized Spares. The range and quantity of authorized spare components will be consistent with the

mobility requirements dictated by the air mobility concept.

(3) Direct Exchange. Repairs selected items for return to stock and establishes the Direct Exchange (DX)

program for AVUM units, when such repairs cannot be accomplished at the AVUM level.

(4) Serviceability. The AVIM units will have capability to determine the serviceability of specified

components removed prior to the expiration of the Time Between Overhaul (TBO) or finite life. The AVIM inspects,

troubleshoots, performs diagnostic tests, repairs, adjusts, calibrates, and aligns aircraft support system components.

Component disassembly and repair will support the DX program and will normally be limited to tasks requiring cleaning

and the replacement of seals, fittings, and items of common hardware. Unserviceable repairable components and end

items, which are beyond the capability of AVIM to repair, will be evacuated to Depot Maintenance.

(5) Weight and Balance. Performs aircraft weight and balance inspections and other special inspections

which exceed AVUM capability.

(6) Quick Response. Provides quick response maintenance support, including aircraft recovery and air

evacuation, on the-job training, and technical assistance through the use of mobile maintenance contact teams.

(7) Operational Readiness. Maintains authorized operational readiness float aircraft.

B-2
TM 1-1730-232-13&P

(8) Material Classification. Provides collection and classification services for serviceable/unserviceable

material.

(9) Cannibalization. Operates a cannibalization activity in accordance with AR 750-50. The aircraft

maintenance company within the maintenance battalion of a division will perform AVIM functions consistent with air

mobility requirements and conservation of personnel and equipment resources Additional intermediate maintenance

support will be provided by the supporting non-divisional AVIM unit.)

B-3
TM 1-1730-232-13&P

SECTION II

USE OF THE MAINTENANCE ALLOCATION CHART

B-2. GENERAL INFORMATION.

The Maintenance Allocation Chart is used to assign and authorize maintenance functions as follows.

NOTE

Approved item names are used throughout this MAC. Generic terms or nomenclatures, if

used, are expressed in parentheses and are not to be considered as official terminology.

a. Maintenance Function Assignment. The Maintenance Allocation Chart assigns maintenance functions to the

lowest level of maintenance, based on past experience and the following considerations:

(1) Skills available.

(2) Work time required.

(3) Tools and test equipment required and/or available.

b. Maintenance Level Authorization. Only the lowest level of maintenance authorized to perform a

maintenance function is indicated. If the lowest maintenance level cannot perform all tasks of a single maintenance

function (e.g., test, repair), then the higher maintenance level(s) will also be indicated to accomplish additional tasks.

(1) A maintenance function assigned to a maintenance level will automatically be authorized to be performed

at any higher maintenance level.

(2) A maintenance function that cannot be performed at the assigned level of maintenance, for any reason,

may be evacuated to the next higher maintenance level. Higher maintenance levels will perform the maintenance

functions of lower maintenance levels, when required, by the commander who has the authority to direct such tasking.

(3) The assignment of a maintenance function will not be construed as authorization to carry the related

repair parts or spares in stock. Information to requisition, or otherwise secure the necessary repair parts, will be as

specified in the associated Repair Parts and Special Tools List (RPSTL).

(4) Normally, there will be no deviation from the assigned level of maintenance. In cases of operational

necessity, requests for a lower maintenance level may be authorized on a one-time basis. To transfer maintenance

functions to the lower level, specific authorization by the maintenance officer at the higher level of maintenance is

required. The special tools and equipment required by the lower level of maintenance will be furnished by the

maintenance level to which the function is assigned. The transfer of a maintenance function to a lower maintenance

level does not relieve the higher maintenance level of the responsibility for the function. The higher level of maintenance

will provide technical supervision and inspection of the function being performed at the lower level.

B-4
TM 1-1730-232-13&P

B-3. MAINTENANCE FUNCTIONS.

Maintenance functions will be limited to and defined as follows:

a. Inspect. Inspection determines the serviceability of an item by comparing its physical and mechanical

characteristics with established standards The examination is conducted by using sight, sound, and feel.

b. Test. Testing verifies the serviceability by measuring the mechanical and hydraulic characteristics of the item

and comparing the measurements with prescribed standards.

c. Service. Servicing operations are required periodically to keep an item in proper operating condition. Servicing

tasks include cleaning, decontamination, preservation, draining, painting, and replenishment of fuel, lubricants, chemical

fluids, or gases.

d. Adjust. Adjustments set the prescribed operating limits of an item. Adjustments maintain or regulate specified

parameters, or bring components into proper or exact position.

e. Align. Alignment brings specified variable elements of an item in line, to ensure optimum or desired

performance.

f. Calibrate. Calibration is required on instruments or TMDE used for precision measurement. Calibration

compares a certified standard of known accuracy, to the instrument to be checked. Discrepancies in the accuracy of the

instrument being compared, are corrected by adjustment.

g. Remove/Install. Removal and installation of the same item is required when an item must be removed to

perform service or other maintenance functions.

h. Replace. To remove an unserviceable item and install a serviceable counterpart in Its place. "Replace" is

authorized by the MAC and the assigned maintenance level is shown as the 3rd position code of the SMR code.

i. Repair. The application of maintenance services to identity troubles and restore serviceability to an item by

correcting specific damage, fault, malfunction, or failure in a part, subassembly, end item, or system. The services

include fault location and troubleshooting procedures, removal and installation procedures, and disassembly and

assembly procedures.

j. Overhaul. That maintenance effort (service/action) prescribed to restore an item to a completely

serviceable/operational condition as required by maintenance standards in appropriate technical publications (I.e.,

DMWR). Overhaul is normally the highest degree of maintenance performed by the Army. Overhaul does not normally

return an item to like new condition.

k. Rebuild. Those services/actions necessary for the restoration of unserviceable equipment to a like new

condition in accordance with original manufacturing standards. Rebuild is the highest degree of materiel maintenance

applied to Army equipment. The rebuild operation includes the act of returning to zero those age measurements (e.g.,

hours/miles) considered in classifying Army equipment/components.

B-5
TM 1-1730-232-13&P

B-4. EXPLANATION OF COLUMNS IN THE MAC.

Explanations of the columns used in the Maintenance Allocation Chart in Table B-1, are as follows:

a. Group Number (Column 1). Column 1 lists the group number of the end item and assemblies of the end item.

This manual uses Group codes 00 thru 03.

b. Component/Assembly (Columns 2). Column 2 lists the name of the component or assembly assigned to the

group number listed in column 1.

c. Maintenance Function (Column 3). Column 3 lists the maintenance functions to be performed on the items

listed in column 2. This manual uses maintenance functions INSPECT, REPLACE, and REPAIR.

d. Maintenance Levels (Column 4). The maintenance levels AVUM, AVIM, and DEPOT are listed on the

Maintenance Allocation Chart in individual columns. The work times are entered for the maintenance functions

authorized at each maintenance level. Work times are presented in whole hours and/or decimal portions of hours. If a

work time has not been established, the columnar presentation will indicate '--." Maintenance levels higher than the level

of maintenance indicated, are authorized to perform the indicated function.

e. Tools and Equipment Reference Code (Column 5). Column 5 specifies, by code, those common tool sets

(not individual tools), common TMDE, and special tools, special TMDE, and special support equipment required to

perform the designated function.

f. Remarks Code (Column 6). This column contains a numerical code, which is keyed to the remarks contained in

Section IV, Table B-3.

B-6
TM 1-1730-232-13&P

Table B-1. Maintenance Allocation Chart (Aviation)

for

Ground Handling Wheels Assembly

(1) (2) (3) (4) (5) (6)

MAINTENANCE

LEVEL TOOLS &

GROUP COMPONENT/ MAINTENANCE EQUIPMENT REMARKS

NUMBER ASSEMBLY FUNCTION AVUM(O) AVIM(F) DEPOT(D) REF CODE CODE

00 WHEELS ASSEMBLY, INSPECT 0.50 1

GROUND HANDLING REPAIR 2.00 1,3 2

01 HYDRAULIC SYSTEM

0101 PUMP ASSY, REPLACE 1.00 1,2 3

HYDRAULIC REPAIR 1.50 1,3 4

0102 RAM ASSY, REPLACE 1.00 1,2 5

02 CRADLE ASSEMBLY INSPECT 0.20 1

REPAIR 1.50 1,3 6

03 WHEEL ASSEMBLY INSPECT 0.10 1

REPLACE 0.20 1,2 7

REPAIR 1.00 1 8

B-7
TM 1-1730-232-13&P

SECTION III

TOOLS AND TEST EQUIPMENT REQUIREMENTS

The Tools and Test Equipment required to maintain and service the Ground Handling Wheels Assemblies are provided

in Table B-2 of this Appendix.

B-5. EXPLANATION OF COLUMNS IN TOOLS AND TEST EQUIPMENT REQUIREMENTS

a. Column 1, Tools and Test Equipment Reference Code. The tool and test equipment reference code

correlates with a code used in the MAC, Section II, Table B-1, Column 5.

b. Column 2, Maintenance Level. The lowest level of maintenance authorized to use the tool or test equipment.

c. Column 3, Nomenclature. Name or identification of the tool or test equipment.

d. Column 4, National Stock Number. The National Stock Number of the tool or test equipment.

e. Column 5, Tool Number. The manufacturers part number.

Table B-2. TOOLS AND TEST EQUIPMENT REQUIREMENTS

(1) (2) (3) (4) (5)

Reference Maintenance National Stock Tool

Code Category Nomenclature Number (NSN) Number

1 O Tool Kit, General Mechanics 5180-00-323-4692 SC 5180-99-A01

2 O Tool Set, AVUM 4920-00-567-0476 SC 4920-99-A92

3 F Shop Set, AVIM Hydraulic, 4920-00-165-1454 SC 4920-99-A81

Divisional

B-8
TM 1-1730-232-13&P

SECTION IV

REMARKS

B-6. EXPLANATION OF COLUMNS IN REMARKS TABLE.

Remarks code numbers are entered in Column 6 of MAC Table B-1, are referenced to code numbers and remarks in

Table B-3 below.

a. Column 1, Remarks Code. The numerical code in this column is referenced in Column 6 of MAC Table B-1.

b. Column 2, Remark. This column contains pertinent Information required when performing a maintenance

function listed in MAC Table B-1

Table B-3. Remarks for MAC Column 6

Remarks Code Remarks

1 Visual inspection without detailed disassembly.

2 End item repair requires replacing a hydraulic system component, cradle assembly, or

wheel assembly.

3 Hydraulic pump P/N BU0953B has UOC.GH1,GH2;

hydraulic pump P/N 61780 has UOC:GH1,GH2,GH3;

when hydraulic pump P/N BU0953B fails, it may be replaced by hydraulic pump P/N

61780.

4 Hydraulic pump P/N BU0953B is not repairable; hydraulic pump P/N 61780 is repaired

upon failure.

5 Replacement procedures for ram assembly are the same for all models of the Ground

Handling Wheels Assembly.

6 Repair allows replacement of axles, bushings, trunnion, release pins, clevis, or cradle.

7 Tire already mounted on rim and bearings installed.

8 Repair allows replacement of tire, tube, bearings, and split rims.

B-9/(B-10 blank)
TM 1-1730-232-13&P

APPENDIX C

REPAIR PARTS AND SPECIAL TOOLS LIST

SECTION I INTRODUCTION

C-1. SCOPE

This appendix lists spare and repair parts; special tools; special test, measurement and diagnostic equipment (TM DE);

and other special support equipment, required to maintain three models of the Ground Handling Wheels Assembly. It

authorizes the requisitioning and Issue of spare parts and repair parts, as indicated by the source, maintenance, and

recoverability (SMR) codes. The list is used when performing Aviation Unit Maintenance (AVUM) and Aviation

Intermediate Maintenance (AVIM).

C-2. GENERAL

The Repair Parts and Special Tools list is divided into the following sections:

a. SECTION II REPAIR PARTS LIST. Section II lists the spare and repair parts authorized for use In the

performance of maintenance Included are parts which must be removed for replacement of the authorized parts. The

parts are listed by functional groups In numeric sequence, with the parts in each group listed in illustration figure and item

number sequence.

b. SECTION III SPECIAL TOOLS LIST. Section III is provided to list special tools, special TMDE, and other

special support equipment authorized for the performance of maintenance. Not applicable.

c. SECTION IV CROSS-REFERENCE INDEX. Section IV lists all part numbers appearing In the group lists in

Section II. The part numbers are listed in alphanumeric sequence and are cross referenced to the national stock number

(NSN), the commercial and government entity (CAGE) code, and the Illustration figure and item number.

C-3. EXPLANATION OF COLUMNS 

Explanations are given for the columns in the Repair Parts List in Section II, Special Tools List in Section III, and the

Cross-Reference Index in Section IV.

a. Columns In Section II and III. The columns in the Repair Parts List in Section II and the Special Tools List In

Section III, are identified by a number in parenthesis ( ) and a column title. The explanations are as follows:

Column (1) ITEM NO. The item number refers to the number that appears with an arrow on the

figure, which point to a specific part. The figure to use is identified at the top of the parts list.

Column (2) SMR CODE The entry in this column is a Source, Maintenance, and Recoverability

(SMR) Code. Specific positions in the uniform code format are assigned for each type code.

EXAMPLE: P 1st & 2nd Positions = Source Code (requisition)

A

F 3rd Position = Maintenance Code (install/replace)

Z 4th Position = Maintenance Code (complete repair)

Z 5th Position = Recoverability Code (disposition)

C-1
TM 1-1730-232-13&P

1. Source Codes The source code tells personnel how to acquire items needed for maintenance, repair, or

overhaul of an end item/equipment. Source codes are entered In the first and second positions of the uniform

SMR Code format as follows:

Code Application/Explanation (1st and 2nd Positions)

PA Item procured and stocked for anticipated or known usage.

PB Item procured and stocked for insurance purpose; essential that a minimum quantity be available in the

supply system

PC Item procured and stocked, which would otherwise be coded PA, but is deteriorative in nature.

PD Support item procured for Initial issue or outfitting; excludes support equipment and Is stocked only for

subsequent or additional initial Issues or out-fittings. Not subject to automatic replenishment.

PE Support equipment procured and stocked for Initial issue or outfitting at specified maintenance repair

activities.

PF Support equipment which will not be stocked, but which will be centrally procured on demand.

FG Item procured and stocked to provide sustained support for the life of the equipment. It is applied to an

item peculiar to the equipment, which will probably be discontinued or out of production, and would prove

uneconomical to reproduce at a later time

KD An item in a depot overhaul repair kit and not purchased separately.

KF An item in a maintenance kit and not purchased separately. Maintenance kits items can be replaced at

organizational or intermediate levels of maintenance

KB Item included in both depot overhaul repair kit and maintenance kit.

MD Item to be manufactured or fabricated at organizational level.

MF Item to be manufactured or fabricated at the direct support maintenance level.

MH Item to be manufactured or fabricated at the general support maintenance level.

MD Item to be manufactured or fabricated at the depot maintenance level.

AD Item to be assembled at organizational level.

AF Item to be assembled at direct support maintenance level.

AH Item to be assembled at general support maintenance level.

AD Item to be assembled at depot maintenance level.

XA Item is not procured or stocked; requirements for the item results in replacement of the next higher

assembly.

XB Item is not procured or stocked; it is not available through salvage or requisition.

XC Installation drawing, diagram, instruction sheet, field service drawing, identified by manufacturers part

number.

XD A support item that Is not stocked. When required, item will be procured through normal supply

channels.

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 coded XA or aircraft support items

restricted by AR 750-1.

C-2
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2. Maintenance Code. Maintenance codes are assigned to indicate the levels of maintenance authorized to

USE and REPAIR support items. The maintenance code entered in the third position will indicate the lowest

maintenance level authorized to remove, replace, and use the support item. The maintenance code entered in

the fourth position indicates whether the item is to be repaired and Identifies the lowest maintenance level with

the capability to perform complete repair. The maintenance codes are entered in the third and fourth positions of

the uniform SMR code format as follows:

Code Application/Explanation (3rd Position Codes)

C Crew or operator maintenance performed within organizational maintenance

O Support item Is removed, replaced, used at the organizational level.

F Support item Is removed, replaced, used at the direct support level.

H Support item is removed, replaced, used at the general support level.

L Support items that are removed, replaced, used at the depot, mobile depot, or specialized repair activity

only.

Code Application/Explanation (4th Position Codes)

O The lowest maintenance level capable of complete repair of the support item is the organizational level.

F The lowest maintenance level capable of complete repair of the support item is the direct support level.

H The lowest maintenance level capable of complete repair of the support item is the general support level.

D The lowest maintenance level capable of complete repair of the support item is the depot level.

L Repair restricted to a Specialized Repair Activity.

Z Non-repairable. No repair is authorized.

B No repair is authorized. The item may be reconditioned by adjusting, lubricating, etc., at the user level.

No parts or special tools are procured for the maintenance of this Item.

3. Recoverability Code. Recoverability codes are assigned to support items to indicate the disposition

action on unserviceable items. The recoverability code is entered in the fifth position of the uniform SMR code

format as follows:

Code Application/Explanation (5th Position Codes)

Z Non-repairable item. When unserviceable, condemn and dispose at the level indicated in position three

of SMR code.

O Repairable Item. When uneconomically repairable, condemn and dispose at organizational level or

aviation unit level.

F Repairable Item. When uneconomically repairable, condemn and dispose at the direct support level or

aviation intermediate level.

H Repairable item. When uneconomically repairable, condemn and dispose at the general support level.

D Repairable item. When beyond lower level repair capability, return to depot. Condemnation and disposal

not authorized below depot level.

L Repairable item. Condemnation and disposal not authorized below depot specialized repair activity

level.

A Item requires special handling or condemnation procedures because of specific reasons (i.e., precious

metal content, high dollar value, critical material or hazardous material). Refer to appropriate

manuals/directives for specific instructions.

C-3
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Column (3) NSN. The National Stock Number (NSN) for the item is listed In this column and used to

requisition the part.

Column (4) CAGE CODE. The Commercial and Government Entity (CAGE) code is a 5character code used

to identify the manufacturer, distributor, or Government agency/activity that supplies the part.

Column (5) PART NUMBER. The part number 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, specifications, standards, and inspection requirements to

identify an item or range of items.

NOTE

When an NSN is used to requisition an item, the item received may have a different part

number than the item listed.

Column (6) DESCRIPTION AND USABLE ON CODE. This column can contain the following information:

The Federal item name and a minimum description to identity the item, if required;

part numbers of bulk materials, referenced to a line entry in which it is used for manufacture or fabrication;

the Useable On Code (UOC) identifies the functional group on which the part is used and appears on last line

of item description.

the statement END OF FIGURE is entered just below the last item description in the column for a given figure.

Column (7) QUANTITY The quantity Indicates the amount of the item used In the breakout shown on the

illustration figure, which Is prepared for a functional group, sub-functional group, or an assembly. A 'V"

appearing in this column Instead of a quantity number Indicates that the quantity is variable and may vary from

application to application.

b. Columns In Section IV. The Cross-Reference Index In Section IV consists of two lists. One list Is the National

Stock Number Index and the other list Is the Part Number Index.

(1) NATIONAL STOCK NUMBER (NSN) INDEX. The NSN Index has three columns as follows:

STOCK NUMBER Column. Contains the NSN in national item Identification number (NIIN) sequence. The

NIIN consists of the last nine digits of the NSN.

FIG. Column. Contains the number of the figure where the item is identified/located.

ITEM Column. Contains the item number associated with the figure number in the adjacent column.

C-4
TM 1-1730-232-13&P

(2) PART NUMBER INDEX. The Part Number Index has three columns as follows:

PART NUMBER Column. Contains the part number assigned to the item.

FIG. Column. Contains the number of the figure where the item is identified/located.

ITEM Column. Contains the item number associated with the figure number in the adjacent column.

C-4. SPECIAL INFORMATION

a. Usable On Code. A usable on code (UOC) is assigned to each different model of an end item. The usable on code is

shown as "UOC: ", justified left on the last line of the description column, when required. Uncoded items are applicable

to all models. Identification of usable on codes used in this RPSTL are:

UOC Used On

GH1 Model 204-050-200-5

GH2 Model 214-706-104-101

GH3 Model 1730-EG-100

b. Illustrations-Listings. Only illustrations containing organizational authorized items appear in this appendix. Only

those parts assigned the third position SMR maintenance code C or 0 are listed in the tabular listing: therefore, there may

be a break In the item number sequence.

C-5. HOW TO LOCATE REPAIR PARTS

a. When National Stock Number or part Number is Unknown.

(1) Using the Table of Contents, determine the assembly or subassembly group to which the item belongs.

(2) Find the figure covering the functional group to which the item belongs.

(3) Identify the item on the figure and note the number of the item.

(4) Look up the Repair Parts List for the figure and item number. The NSN and part number is on the same

line as the item number.

b. When National Stock Number or Part Number is Known.

(1) Using the Index of National Stock Numbers and Part Numbers, find the pertinent National stock number or

part number. The NSN index is in NIIN sequence. The part number index is in alphanumeric sequence, crossreferenced to the Illustration figure number and item number.

(2) Turn to the figure and locate the item number. Verify that the item is the one desired.

C-5
TM 1-1730-232-13&P

Figure C-1-1. Ground Handling Wheels Assembly, P/N 204-050-200-5

C-6
TM 1-1730-232-13&P

Figure C-1-2. Ground Handling Wheels Assembly, P/N 214-706-104-101

C-7
TM 1-1730-232-13&P

Figure C-1-3. Ground Handling Wheels Assembly, P/N 1730-EG-100

C-8
TM 1-1730-232-13&P

SECTION II REPAIR PARTS LIST

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

GROUP 00

GROUND HANDLING WHEELS ASSY

FIG C-1-1 G H WHEELS ASSEMBLY

(204-050-200-5)

FIG C-1-2 G H WHEELS ASSEMBLY

(214-706-104-101)

FIG C-1-3 G H WHEELS ASSEMBLY

(1730-EG-100)

1 XCOFF 1730-00-980-9552 97499 204-050-200-5 WHEELS ASSY, GROUND HANDLING . .......................... 1

UOC: GH 1

2 PAOFF 1730-01-133-9204 97499 214-706-104-101 WHEELS ASSY, GROUND HANDLING. ........................... 1

UOC.GH2

3 PAOFF 1730-01-133-9204 81996 1730-EG-100 WHEELS ASSY, GROUND HANDLING, . ......................... 1

UOC:GH3

4 PAOFF 4320-01-287-9662 45225 61780 PUMP, HYDRAULIC RAM

SEE FIG C-2 FOR BREAKDOWN...................................... 1

UOC:GH1,GH2,GH3

5 XCOFF 4320-00-866-7750 77428 BU0953B PUMP, HYDRAULIC RAM, ................................................. 1

UOC: GH 1,GH2

6 PAOZZ 3040-00-963-6853 81996 3040-UH1-155 RAM ASSY .......................................................................... 2

UOC:GH1

7 PAOZZ 4320-01 -332-5472 81996 1730-EG-119 RAM ASSY . ........................................................................ 2

UOC:GH2,GH3

8 PAOZZ 4720-00-868-5779 98441 129241-1 HOSE ASSY RAM, ............................................................. 2

UOC:GH1,GH2

9 PAOZZ 4720-01-341-2337 81996 1730-EG-12-1 HOSE ASSY RAM............................................................... 2

UOC:GH1,GH2,GH3

10 PAOZZ 1?30-01-333-5964 1JD86 1730-UH-1001 CRADLE ASSY SEE FIG C-3-1 FOR

BREAKDOWN..................................................................... 1

UOC:GH1

11 PAOFF 1730-01-147-8581 97499 214-050-011-101 CRADLE ASSY SEE FIG C-3-2 FOR

BREAKDOWN .................................................................... 1

UOC:GH2

12 PAOFF 1730-01-147-8581 81996 1730-EG-101 CRADLE ASSY SEE FIG C-3-3 FOR

BREAKDOWN..................................................................... 1

UOC:GH3

13 PAOOO 1630-00-895-9348 33269 40-76-1 WHEEL ASSY SEE FIG C - 1 FOR

BREAKDOWN..................................................................... 2

UOC:GH1

C-9
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

14 PAOOO 1630-01-153-7185 33269 40-117A WHEEL ASSY SEE FIG C-4-2 FOR

BREAKDOWN..................................................................... 2

UOC:GH2

15 PAOOO 1630-01 -153-7185 81996 1730-EG-116 WHEEL ASSY SEE FIG C--3 FOR

BREAKDOWN .................................................................... 2

UOC:GH3

16 PAOZZ 5310-00-807-1475 96906 MS21042L4 NUT . ................................................................................... 4

UOC.GH1, GH2 (USQ with item 5)

PAOZZ 5310-00-807-1475 96906 MS21042L4 NUT ..................................................................................... 2

UOC:GH1.GH2 (use with item 4)

PAOZZ 5310-00-400-5503 96906 MS35650-3254 NUT . ................................................................................... 2

UOC:GH3

17 PAOZZ 5310-00-167-0835 88044 AN960416L WASHER ............................................................................ 4

UOC: GH 1, GH2, GH3

18 PAOZZ 5306-01-238-3828 81996 1730-EG-025-1 U-BOLT................................................................................ 1

UOC.GH2, GH3

PAOZZ 5306-01-238-3829 81996 1730-EG-025-2 U-BOLT ............................................................................... 1

UOC:GH1 (use with item 4)

PAOZZ 5306-00-889-3003 0FUR2 330570 U-BOLT................................................................................ 1

UOC GH1 (use with item 5)

19 PAOZZ 5306-01-238-3829 81996 1730-EG-025-2 U-BOLT ............................................................................... 1

UOC:GH2 (use with item 5)

PAOZZ 5306-00-911-4180 OFUP.2 330571 U-BOLT ............................................................................... 1

UOC:GH1 (use w-h item 5)

20 PAOZZ 5365-00-368-9131 24434 ALS55 SPACER, PLATE, ............................................................... 1

UOC:GH1

21 PAOZZ 5365-01-265-9019 09986 ALS-57 SPACER, PLATE ................................................................ 1

UOC:-;H2

22 PAOZZ 5365-00-845-2200 97499 204-050-165-1 RETAINER .......................................................................... 2

UOC:GH1, GH2

PAOZZ 5365-00-298-3184 81996 1730-EG-114 RETAINER .......................................................................... 2

UOC:GH3

23 PAOZZ 5310-00-176-8118 88044 AN320-20 NUT . ................................................................................... 2

UOC: GH 1, GH2, GH3

24 PAOZZ 5315-00-200-4545 96906 MS24665426 COTTER PIN,...................................................................... 2

UOC:GH1, GH2, GH3

25 PAOZZ 5305-00-088-0509 96906 MS90725-10 BOLT . ................................................................................. 2

UOC:GH1.GH2, GH3 (use with item 4)

26 PAOZZ 5310-00-761-6882 96906 MS51967-2 NUT, .................................................................................... 2

UOC:GH1 GH2, GH3 (use with item 4)

27 PAOZZ 4730-00-277-9305 96906 MS208254 TEE,..................................................................................... 1

UOC:GH1, GH2, GH3

28 PAOZZ 4730-00-231-4010 96906 MS208224-4 ELBOW, .............................................................................. 2

UOC.GH1, GH2

C-10
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(PAGE INTENTIONALLY LEFT BLANK)

C-11
TM 1-1730-232-13&P

Figure C-2. Hydraulic Ram Pump, P/N 61780

C-12
TM 5-4210-224-14&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

GROUP 01

HYDRAULIC SYSTEM

GROUP 0101

PUMP, HYDRAULIC RAM

FIG C-2 PUMP, HYDRAULIC RAM

(61780)

1 XDFZZ 5365-01-296-2700 45225 211743 RING, RETAINING.............................................................. 4

2 XDFZZ 5315-01-297-2681 45225 211742 PIN, STRAIGHT .................................................................. 2

3 XDFZZ 5340-01-299-6751 45225 61813-GR12 HANDLE, MANUAL CONTROL.......................................... 1

4 XDFZZ 5340-01-296-3658 45225 206731 GRIP, HANDLE, ................................................................. 1

5 XDFZZ 5305-01-296-7763 45225 305975 VALVE SCREW ................................................................. 1

6 XDFZZ 4730-01-268-4007 45225 10676 BUSHING, PIPE.................................................................. 1

7 XDFZZ 4820-01-297-9050 45225 305993 VALVE, METERING............................................................ 1

8 PAFZZ 4820-01-299-5762 45225 211468 PISTON, ASSEMBLY.......................................................... 1

9 XDFZZ 45225 213987 WASHER, BACKUP............................................................ 1

10 XDFZZ 5330-01-292-7144 45225 10271 O'RING. ............................................................................... 1

11 XDFZZ 45225 10378 BALL, STEEL ...................................................................... 2

12 XDFZZ 45225 12223 BALL, . ................................................................................. 1

13 XDFZZ 4810-01-297-5037 45225 308617 VALVE, SAFETY RELEASE .............................................. 1

14 XDFZZ 45225 10267 O'RING ............................................................................... 1

15 XDFZZ 45225 15085 WASHER, BACKUP............................................................ 1

16 XDFZZ 45225 14874 WASHER, COPPER, .......................................................... 1

17 XDFZZ 45225 10444 SPRING, COMPRESSION, ................................................ 1

18 XDFZZ 45225 29782 SPACER ............................................................................. 1

19 XDFZZ 45225 211797 SPRING, COMPRESSION ................................................. 1

20 XDFZZ 45225 10375 BALL, STEEL....................................................................... 1

21 XDFZZ 45225 61295 BODY, PUMP ...................................................................... 1

22 XDFZZ 4820-01-297-4506 45225 21278-80 VALVE, RELIEF, PRESSURE ........................................... 1

23 PAFZZ 45225 12205 FILTER, STICK.................................................................... 1

24 PAFZZ 5330-01-296-2657 45225 211495 O'RING ............................................................................... 1

25 XDFZZ 45225 10556 SCREW, SET., ................................................................... 1

26 XDFZZ 45225 21643-NP KNOB .................................................................................. 1

27 XDFZZ 45225 307601 RESERVOIR ASSEMBLY,.................................................. 1

23 XDFZZ 45225 213847 TIE ROD .............................................................................. 1

29 PAFZZ 5340-01-296-6523 45225 52711 CAP, PROTECTIVE, DUST................................................ 1

30 XDFZZ 5330-01-296-2658 45225 212739 GASKET .............................................................................. 1

31 XDFZZ 45225 10204 NUT .................................................................................... 1

32 XDFZZ 45225 215907 DECAL ADO NOT REMOVE.............................................. 1

33 XDFZZ 45225 15529 BALL NYLON....................................................................... 1

34 XDFZZ 45225 12557 O'RING ................................................................................ 1

C-13
TM 5-4210-224-14&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

35 XDFZZ 45225 10970 PLUG, PIPE ........................................................................ 1

36 XDFZZ 45225 308473 DECAL, WARNING, ., ........................................................ 1

37 XDFZZ 4320-01-287-5348 45225 300437 KIT, REPAIR PARTS ......................................................... 1

38 XDOZZ 45225 47139-GR12 PLATE, MOUNTING ........................................................... 1

39 XDFZZ 45225 420094-GR12 GUARD, HYDRAULIC FITTING ........................................ 1

40 PAOZZ 5305-00-088-0509 96906 MS90725-10 BOLT . ................................................................................. 2

41 PAOZZ 5310-00-761-6882 96906 MS51967-2 NUT . ................................................................................... 2

C-14
TM 1-1730-232-13&P

(PAGE INTENTIONALLY LEFT BLANK)

C-15
TM 1-1730-232-13&P

Figure C-3-1. Cradle Assembly, P/N 1730-UH-1001

C-16
TM 1-1730-232-13&P

Figure C-3-2. Cradle Assembly, P/N 214-050-011-101

C-17
TM 1-1730-232-13&P

Figure C-3-3. Cradle Assembly, P/N 1730-EG-101

C18
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

GROUP 02

CRADLE ASSEMBLY

FIG C-3-1 CRADLE ASSEMBLY

(1730-UH-1001)

FIG C-3-2 CRADLE ASSEMBLY

(214-050-011-101)

FIG C-3-3 CRADLE ASSEMBLY

(1730-EG-101)

1 PAOZZ 1730-00-691-0552 97449 204-050-157-7 CRADLE . ............................................................................ 1

UOC:GH1

XDFZZ 97499 214-050-011-103 CRADLE ............................................................................. 1

UOC:GH2

XAFZZ 81996 1730-EG- 101-1 CRADLE ............................................................................. 1

UOC.GH3

2 PAOZZ 1730-00-066-0294 97499 205-050-158-11 AXLE.................................................................................... 1

UOC:GH1

PAOZZ 1730-01-147-8578 97499 214-050-022-1 AXLE, OUTER..................................................................... 1

UOC:GH2

PAOZZ 1730-01-310-6429 81996 1730-EG-107 AXLE, OUTER .................................................................... 1

UOC:GH3

3 PAOZZ 1730-00-077-1766 97499 205-050-158-12 AXLE ................................................................................... 1

UOC:GH1

PAOZZ 1730-01-147-8579 97499 214-050-022-3 AXLE, INNER ...................................................................... 1

UOC:GH2

XDOZZ 1730-01-310-0412 81996 1730-EG-109 AXLE, INNER ...................................................................... 1

UOC:GH3

4 PAOZZ 1730-00-895-9343 97499 204-050-160-1 ARM .................................................................................... 2

UOC:GH1

5 PAOZZ 3120-00-897-5184 97499 204-050-159-1 BUSHING, SLEEVE............................................................ 1

UOC:GH1

PAOZZ 5365-00-529-1585 97499 214-050-014-001 SPACER, SLEEVE ............................................................. 1

UOC:GH2

PAOZZ 3102-01-312-0730 81996 1730-EG-108 SPACER, SLEEVE.............................................................. 1

UOC:GH3

6 PAOZZ 5306-00-846-1655 97499 204-050-167-1 BOLT . ................................................................................. 4

UOC:GH1

PAOZZ 5306-00-548-2543 13689 LWB22-5-34 BOLT . ................................................................................. 1

UOC.GH2

PAOZZ 5306-00-097-4662 96906 MS21250-05036 BOLT. .................................................................................. 1

UOC.GH3

C-19
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

7 PAOZZ 5310-00-167-0837 88044 AN960-616L WASHER ............................................................................ 6

UOC:GH1,GH2,GH3

8 PAOZZ 5310-00-807-1477 96906 MS21042L6 NUT ..................................................................................... 2

UOC:GH1,GH3

PAOZZ 5310-00-807-1476 96906 MS21042L5 NUT, LOCKING .................................................................. 1

UOC:GH2

9 PAOZZ 1730-00-895-9344 97499 204-050-161-1 TRUNNION ......................................................................... 1

UOC:GH1

PAOZZ 1730-01-147-580 97499 214-050-012-1 TRUNNION ......................................................................... 1

UOC:GH2

XDOZZ 81996 1730-EG-111 TRUNNION ......................................................................... 1

UOC:GH3

10 PAOZZ 5305-00-725-3511 96906 MS51964-94 SET SCREW ...................................................................... 2

UOC:GH1,GH2,GH3

11 PAOZZ 5340-00-895-9345 97499 204-050-170-1 CLEVIS. ............................................................................... 2

UOC:GH1,GH2

PAOZZ 5340-01-311-2832 81996 1730-EG-112 CLEVIS . .............................................................................. 2

UOC:GH3

12 PAOZZ 1730-00-895-9347 97499 204-050-200-13 PIN, CLEVIS ....................................................................... 2

UOC:GH 1,GH2

PAOZZ 1730-00-895-9347 81996 1730-EG-110 PIN ...................................................................................... 2

UOC:GH3

13 PAOZZ 4730-00-050-4207 96906 MS15001-4 FITTING, LUBRICATION ................................................... 1

UOC:GH 1,GH2,GH3

14 PAOZZ 5310-00-234-1863 88644 MS242665-300 PIN, COTTER...................................................................... 2

UOC:GH1

PAOZZ 5315-00-842-3044 96906 MS24665-283 PIN, COTTER ..................................................................... 2

UOC:GH2,GH3

15 PAOZZ 4730-0)-172-0010 96906 MS15002-1 FITTING............................................................................... 2

UOC:GH1

PAOZZ 4730-00-172-0010 96906 MS15002-1 FITTING............................................................................... 1

UOC:GH2

16 PAOZZ 4730-00-172-0001 96906 MS15001-2 FITTING............................................................................... 2

UOC:GH1,GH3

PAOZZ 4730-00-172-0001 96906 MS15001-2 FITTING .............................................................................. 1

UOC.GH2

17 PAOZZ 5315-01-016-0446 97499 204050-163-3 PIN, RELEASE . .................................................................. 1

UOC:GH1

PAOZZ 5340-00-575-5740 96906 MS17984C824 PIN, RELEASE . .................................................................. 1

UOC:GH2,GH3

18 PAOZZ 5315-00-895-6797 97499 204-050-154-1 PIN, CONNECTION ........................................................... 1

UOC:GH1

C-20
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

19 PAOZZ 5315-00-895-6799 97499 204-050-164-1 PIN, SUPPORT .................................................................. 1

UOC:GH1

20 PAOZZ 5360-00-675-3229 97499 204-050-133-1 SPRING .............................................................................. 1

UOC:GH1

21 PAOZZ 5315-00-200-3183 96906 MS171598 PIN ...................................................................................... 1

UOC:GH1

22 PAOZZ 5315-01-310-6174 81996 1730-EG-103 PIN, SUPPORT, FWD ....................................................... 1

UOC:GH 1

23 PAFZZ 3120-00-179-7201 97499 21-010B15-5-51 BUSHING, SLEEVE ........................................................... 1

UOC:GH1

XDFZZ 80205 NAS77A8-144 BUSHING, PIN ................................................................... 1

UOC:GH3

24 PAFZZ 5365-00-898-0003 97499 204-050-166-3 BUSHING, SUPPORT PIN ................................................ 1

UOC:GH1

XDFZZ 3120-00-529-1538 97499 214-050-011-5 BUSHING, CLEVIS ............................................................ 1

UOC:GH2

PAOZZ 3120-01-309-4842 96906 NAS77A8-070P BUSHING, CLEVIS ............................................................. 2

UOC:GH3

25 XDFZZ 3120-00-537-3945 97499 214-050-011-7 BUSHING, CLEVIS ............................................................ 1

UOC:GH2

26 XDFZZ 3120-00-529-1555 97499 214-050-011-9 BUSHING, CLEVIS, . .......................................................... 1

UOC:GH2

27 XDOZZ 4730-01-257-5769 97499 209-050-129-101 ADAPTER, SUPPORT ....................................................... 1

UOC:GH2

28 PAOZZ 5306-00-584-5141 96906 MS20004H24 BOLT .................................................................................. 2

UOC:GH2

29 PAOZZ 5365-01-164-1719 97499 140-007-17S14D5 WASHER ............................................................................ 2

UOC:GH2

30 PAOZZ 5310-01-232-3542 80205 NAS57784A NUT .................................................................................... 2

UOC:GH2

31 PAOZZ 5340-00-948-9787 80205 NAS578-4B RETAINER, NUT ................................................................ 2

UOC:GH2

32 XDOZZ 28510 0.19DI1AX0.13 PLUG, Alum or Brass ......................................................... 2

UOC:GH3

33 PAOZZ 5305-00-724-6791 96906 MS51964-55 SETSCREW ....................................................................... 2

UOC:GH1 ,GH2,GH3

34 PAOZZ 4010-00-222-4482 81755 SE2939-1455 ROPE,WIRE........................................................................ 1

UOC:GH2,GH3

35 PAOZZ 5310-00-167-0836 88044 AN960-516L WASHER ............................................................................ 2

UOC:GH2,GH3

36 PAOZZ 5310-00-807-1477 96906 MS21042L6 NUT, LOCKING .................................................................. 1

C-21
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

UOC:GH2,GH3

37 PAOZZ 5306-00-489-3503 96906 MS21250-06030 BOLT .................................................................................. 1

UOC.GH2,GH3

38 PAOZZ 5315-01-310-6174 81996 1730-EG-103 PIN....................................................................................... 1

UOC:GH3

39 PAOZZ 5315-00-200-3183 96906 MS171598 PIN, SPRING....................................................................... 1

UOC:GH3

40 XDFZZ 81996 1730-EG-101-2 BUSHING ............................................................................ 1

UOC:GH3

41 XDFZZ 81996 1730-EG-101-3 BUSHING . .......................................................................... 1

UOC:GH3

42 PAOZZ 4030-01-021-6339 30003 2842687-3 SWAGING SLEEVE, WIRE ............................................... 2

UOC:GH2,GH3

C-22
TM 1-1730-232-13&P

THIS PAGE LEFT INTENTIONALLY BLANK

C-23
TM 1-1730-232-13&P

Figure C-4-1. Wheel Assembly, P/N 40-76-1

C-24
TM 1-1730-232-13&P

Figure C-4-2. Wheel Assembly, P/N 40-117A

C-25
TM 1-1730-232-13&P

Figure C-4-3. Wheel Assembly, P/N 1730-EG-116

C-26
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

GROUP 03

WHEEL ASSEMBLY

FIG C-4-1 WHEEL ASSEMBLY

(40-76-1)

FIG C-4-2 WHEEL ASSEMBLY

(40-117A)

FIG C-4-3 WHEEL ASSEMBLY

(1 730-EG-1 16)

1 XDOOO 33269 162-27 WHEEL HALF, OUTER . .................................................... 1

UOC:GH1

XDOOO 33269 162-48 WHEEL HALF, OUTER . .................................................... 1

UOC:GH2,GH3

2 XDOOO 33269 161-30 WHEEL HALF, INNER........................................................ 1

UOC:GH1

XDOOO 33269 161-23 WHEEL HALF, INNER ....................................................... 1

UOC:GH2,GH3

3 PAOZZ 2620-00-269-7553 D2501 7 00 X 6-6 PLY TIRE .................................................................................... 1

UOC:GH1

PAOZZ 2620-00-277-5398 96906 MS26535-2 TIRE..................................................................................... 1

UOC GH2,GH3

4 PAOZZ 2620-00-269-7267 73842 7.00 X 6 TUBE .................................................................................. 1

UOC:GH1

PAOZZ 2610-00-528-7798 81348 ZZ-I-550/G5/5.70/ TUBE ................................................................................... 1

5.00-8/OFFCTR

UOC:GH2,GH3

5 PAOZZ 5306-00-151-1421 88044 AN4-13A BOLT, MACHINE ................................................................ 3

UOC:GH1

PAOZZ 5306-00-150-9237 88044 ANS-35A BOLT, MACHINE ................................................................ 6

UOC:GH2,GH3

6 PAOZZ 5310-00-141-1795 88044 AN960-416 WASHER, FLAT ................................................................. 6

UOC:GH1

PAOZZ 5310-00-187-2399 88044 AN960-516 WASHER,FLAT .................................................................. 12

UOC:GH2,GH3

7 PAOZZ 5310-00-061-7325 96906 MS21045-4 NUT,SELF-LOCKING.......................................................... 3

UOC:GH1

PAOZZ 5310-00-982-4912 96906 MS21045-5 NUT, SELF-LOCKING......................................................... 6

UOC:GH2,GH3

8 PAOZZ 5365-00-869-2429 33269 155-1 RING, RETAINING.............................................................. 2

UOC:GH1,GH2,GH3

C-27
TM 1-1730-232-13&P

(1) (2) (3) (4) (5) (6) (7)

ITEM SMR PART

NO. CODE NSN CAGEC NUMBER DESCRIPTION AND USABLE ON CODE QTY

9 PAOZZ 5330-00-869-9014 33269 153-15 RETAINER, PACKING ....................................................... 1

UOC:GH1

PAOZZ 5310-00-868-4828 33269 153-4 WASHER, FLAT.................................................................. 2

UOC:GH2,GH3

10 PAOZZ 5330-00-868-5764 33269 154-01300 FELT, MECHANICAL ......................................................... 1

UOC:GH1

PAOZZ 5365-00-923-5114 33269 154-3 RING, MAIN LANDING ....................................................... 1

UOC:GH2,GH3

11 PAOZZ 3110-00-100-3137 33269 214-2 BEARING ............................................................................ 1

UOC.GH1,GH2,GH3

12 PAOZZ 3120-01-063-5777 33269 214-1 BEARING ............................................................................ 1

UOC.GH1,GH2,GH3

13 XDOZZ 33269 166-64 NAMEPLATE ...................................................................... 1

UOC:GH1,GH2,GH3

14 PAOZZ 5330-00-442-4830 33269 153-3 SEAL.................................................................................... 2

UOC:GH1,GH3

PAOZZ 5330-00-442-4830 33269 153-3 SEAL ................................................................................... 1

UOC:GH2

15 PAOZZ 5330-00-869-9014 33269 153-15 RETAINER, PACKING ....................................................... 1

UOC:GH1,GH2,GH3

16 PAOZZ 5330-00-868-5764 33269 154-01300 FELT, MECHANICAL, PREFORMED................................. 1

UOC:GH1,GH2,GH3

C-28
TM 1-1730-232-13&P

SECTION IV CROSS REFERENCE INDEX

National Stock Number

NSN FIGURE ITEM

4730-00-050-4207 C-3-1 13

4730-00-050-4207 C-3-2 13

4730-00-050-4207 C-3-3 13

5310-00-061-7325 C-4-1 7

1730-00-066-0294 C-3-1 2

1730-00-077-1766 C-3-1 3

5305-00-088-0509 C-1-1 25

5305-00-088-0509 C-1-2 25

5305-00-088-0509 C-1-3 25

5305-00-088-0509 C-2 40

5306-00-097-4662 C-3-3 6

3110-00-100-3137 C-4-1 11

3110-00-100-3137 C-4-2 11

3110-00-100-3137 C-4-3 11

5310-00-141-1795 C-4-1 6

5306-00-150-9237 C-4-2 5

5306-00-150-9237 C-4-3 5

5306-00-151-1421 C-4-1 5

5310-00-167--837 C-3-2 7

5310-00-167-0835 C-1-1 17

5310-00-167-0835 C-1-2 17

5310-00-167-0835 C-1-3 17

5310-00-167-0836 C-3-2 35

5310-00-167-0836 C-3-3 35

5310-00-167-0837 C-3-1 7

5310-00-167-0837 C-3-3 7

4730-00-172-0001 C-3-1 16

4730-00-172-0001 C-3-3 16

4730-00-172-0001 C-3-2 16

4730-00-172-0010 C-3-1 15

4730-00-172-0010 C-3-2 15

5310-00-176-8118 C-1-1 23

5310-00-176-8118 C-1-2 23

5310-00-176-8118 C-1-3 23

3120-00-179-7201 C-3-1 23

5310-00-187-2399 C-4-2 6

5310-00-187-2399 C-4-3 6

5315-00-200-3183 C-3-1 21

5315-00-200-3183 C-3-3 39

5315-00-200-4545 C-1-1 24

5315-00-200-4545 C-1-2 24

5315-00-200-4545 C-1-3 24

4010-00-222-4482 C-3-2 34

4010-00-222-4482 C-3-3 34

4730-00-231-4010 C-1-1 28

C-29
TM 1-1730-232-13&P

National Stock Number

NSN FIGURE ITEM

4730-00-231-4010 C-1-2 28

5315-00-234-1863 C-3-1 14

2620-00-269-7267 C-4-14

2620-00-269-7553 C-4-13

2620-00-277-5398 C-4-23

2620-00-277-5398 C-4-33

4730-00-277-9305 C-1-1 27

4730-00-277-9305 C-1-2 27

4730-00-277-9305 C-1-3 27

5365-00-298-3184 C-1-3 22

5365-00-368-9131 C-1-1 20

5310-00-400-5503 C-1-3 16

5330-00-442-4830 C-4-1 14

5330-00-442-4830 C-4-3 14

5330-00-442-4830 C-4-2 14

5306-00-489-3503 C-3-2 37

5306-00-489-3503 C-3-3 37

2610-00-528-7798 C-4-24

2610-00-528-7798 C-4-34

3120-00-529-1538 C-3-2 24

3120-00-529-1555 C-3-2 26

5365-00-529-1585 C-3-25

3120-00-537-3945 C-3-2 25

5306-00-548-2543 C-3-26

5340-00-575-5740 C-3-2 17

5340-00-575-5740 C-3-3 17

5306-00-584-5141 C-3-2 28

5360-00-675-3329 C-3-1 20

1730-00-691-0552 C-3-11

5305-00-724-6791 C-3-1 33

5305-00-724-6791 C-3-2 33

5305-00-724-6791 C-3-3 33

5305-00-725-3511 C-3-1 10

5305-00-725-3511 C-3-2 10

5305-00-725-3511 C-3-3 10

5310-00-761-6882 C-1-1 26

5310-00-761-6882 C-1-2 26

5310-00-761-6882 C-1-3 26

5310-00-761-6882 C-2 41

5310-00-807-1475 C-1-1 16

5310-00-807-1475 C-1-2 16

5310-00-807-1475 C-1-2

5310-00-807-1476 C-3-28

5310-00-807-1477 C-3-18

5310-00-807-1477 C-3-38

C-30
TM 1-1730-232-13&P

National Stock Number

NSN FIGURE ITEM

5310-00-807-1477 C-3-2 36

5310-00-807-1477 C-3-3 36

5315-00-842-3044 C-3-2 14

5315-00-842-3044 C-3-3 14

5365-00-845-2200 C-1-1 22

5365-00-845-2200 C-1-2 22

5306-00-846-1655 C-3-16

4320-00-866-7750 C-1-15

4320-00-866-7750 C-1-25

5310-00-868-4828 C-4-29

5310-00-868-4828 C-4-39

5330-00-868-5764 C-4-1 10

5330-00-868-5764 C-4-1 16

5330-00-868-5764 C-4-2 16

5330-00-868-5764 C-4-3 16

4720-00-868-5779 C-1-18

4720-00-868-5779 C-1-28

5365-00-869-2429 C-4-18

5365-00-869-2429 C-4-28

5365-00-869-2429 C-4-38

5330-00-869-9014 C-4-19

5330-00-869-9014 C-4-1 15

5330-00-869-9014 C-4-2 15

5330-00-869-9014 C-4-3 15

5306-00-889-3003 C-1-1 18

5315-00-895-6797 C-3-1 18

5315-00-895-6799 C-3-1 19

1730-00-895-9343 C-3-14

1730-00-895-9344 C-3-19

1730-00-895-9347 C-3-1 12

1730-00-895-9347 C-3-2 12

1730-00-895-9347 C-3-3 12

1630-00-895-9348 C-1-1 13

5340-00-895-9349 C-3-1 11

5340-00-895-9349 C-3-2 11

3120-00-897-5184 C-3-15

5365-00-898-0003 C-3-1 24

5306-00-911-4180 C-1-1 19

5365-00-923-5114 C-4-2 10

5365-00-923-5114 C-4-3 10

5340-00-948-9787 C-3-2 31

3040-00-963-6853 C-1-16

1730-00-980-9552 C-1-11

5310-00-982-4912 C-4-27

5310-00-982-4912 C-4-37

C-31
TM 1-1730-232-13&P

National Stock Number

NSN FIGURE ITEM

5315-01-016-0466 C-3-1 17

4030-01-021-6339 C-3-2 42

4030-01-021-6339 C-3-3 42

3120-01-063-5777 C-4-1 12

3120-01-063-5777 C-4-2 12

3120-01-063-5777 C-4-3 12

1730-01-133-9204 C-1-22

1730-01-133-9204 C-1-33

1730-01-147-8578 C-3-22

1730-01-147-8579 C-3-23

1730-01-147-8580 C-3-29

1730-01-147-8581 C-1-2 11

1730-01-147-8581 C-1-3 12

1630-01-153-7185 C-1-2 14

1630-01-153-7185 C-1-3 15

5365-01-164-1719 C-3-2 29

5310-01-232-3542 C-3-2 30

5306-01-238-3828 C-1-2 18

5306-01-238-3828 C-1-3 18

5306-01-238-3829 C-1-1 18

5306-01-238-3829 C-1-2 19

4730-01-257-5769 C-3-2 27

5365-01-265-9019 C-1-2 21

4730-01-268-4007 C-26

4320-01-287-5348 C-2 37

4320-01-287-9662 C-1-14

4320-01-287-9662 C-1-24

4320-01-287-9662 C-1-34

5330-01-292-7144 C-2 10

5330-01-296-2657 C-2 24

5330-01-296-2658 C-2 30

5365-01-296-2700 C-21

5340-01-296-3658 C-24

5340-01-296-6523 C-2 29

5305-01-296-7763 C-25

5315-01-297-2681 C-22

4820-01-297-4506 C-2 22

4810-01-297-5037 C-2 13

4820-01-297-9050 C-27

4820-01-299-5762 C-28

5340-01-299-6751 C-23

3120-01-309-4824 C-3-3 24

1730-01-310-0412 C-3-33

5315-01-310-6174 C-3-1 22

5315-01-310-6174 C-3-3 38

C-32
TM 1-1730-232-13&P

National Stock Number

NSN FIGURE ITEM

1730-01-310-6429 C-3-3 2

5340-01-311-2832 C-3-3 11

3120-01-312-0730 C-3-3 5

4320-01-332-5472 C-1-2 7

4320-01-332-5472 C-1-3 7

1730-01-333-5964 C-1-1 10

4720-01-341-2337 C-1-1 9

4720-01-341-2337 C-1-2 9

4720-01-341-2337 C-1-3 9

C-33
TM 1-1730-232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

28510 0.19DIAX0.13 C-3-3 32

45225 10204 C-2 31

45225 10267 C-2 14

45225 10271 5330-01-292-7144 C-2 10

45225 10375 C-2 20

45225 10378 C-2 11

45255 10444 C-2 17

45225 10556 C-2 25

45225 10676 4730-01-268-4007 C-2 6

45225 10970 C-2 35

45225 12205 C-2 23

45225 12223 C-2 12

45225 12557 C-2 34

98441 129241-1 4720-00-868-5779 C-1-1 8

98441 129241-1 4720-00-868-5779 C-1-2 8

97499 140-007-17S14D5 5365-01-164-1719 C-3-2 29

45225 14874 C-2 16

45225 15085 C-2 15

33269 153-15 5330-00-869-9014 C-4-1 9

33269 153-15 5330-00-869-9014 C-4-1 15

33269 153-15 5330-00-869-9014 C-4-2 15

33269 153-15 5330-00-869-9014 C-4-3 15

33269 153-3 5330-00-442-4830 C-4-1 14

33269 153-3 5330-00-442-4830 C-4-3 14

33269 153-3 5330-00-442-4830 C-4-2 14

33269 153-4 5310-00-868-4828 C-4-2 9

33269 153-4 5310-00-868-4828 C-4-3 9

33269 154-01300 5330-00-868-5764 C-4-1 10

33269 154-01300 5330-00-868-5764 C-4-1 16

33269 154-01300 5330-00-868-5764 C-4-2 16

33269 154-01300 5330-00-868-5764 C-4-3 16

33269 154-3 5365-00-923-5114 C-4-2 10

33269 154-3 5365-00-923-5114 C-4-3 10

33269 155-1 5365-00-869-2429 C-4-1 8

33269 155-1 5365-00-869-2429 C-4-2 8

33269 155-1 5365-00-869-2429 C-4-3 8

45225 15528 C-2 33

33269 161-23 C-4-2 2

33269 161-23 C-4-3 2

33269 161-30 C-4-1 2

33269 162-27 C-4-1 1

33269 162-48 C-4-2 1

33269 162-48 C-4-3 1

33269 166-64 C-4-1 13

33269 166-64 C-4-2 13

C-34
TM 1-1730-232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

33269 166-64 C-4-3 13

81996 1730-EG-025-1 5306-01-238-3828 C-1-2 18

81996 1730-EG-025-2 5306-01-238-3829 C-1-1 18

81996 1730-EG-025-2 5306-01-238-3829 C-1-2 19

81996 1730-EG-02501 5306-01-238-3828 C-1-3 18

81996 1730-EG-100 1730-01-133-9204 C-1-3 3

81996 1730-EG-101 1730-01-147-8581 C-1-3 12

81996 1730-EG-101-1 C-3-3 1

81996 1730-EG-101-2 C-3-3 40

81996 1730-EG-101-3 C-3-3 41

81996 1730-EG-103 5315-01-310-6174 C-3-1 22

81996 1730-EG-103 5315-01-310-6174 C-3-3 38

81996 1730-EG-107 1730-01-310-6429 C-3-3 2

81996 1730-EG-108 3120-01-312-0730 C-3-3 5

81996 1730-EG-109 1730-01-310-0412 C-3-3 3

81996 1730-EG-110 1730-00-895-9347 C-3-3 12

81996 1730-EG-111 C-3-3 9

81996 1730-EG-112 5340-01-311-2832 C-3-3 11

81996 1730-EG-114 5365-00-298-3184 C-1-3 22

81996 1730-EG-116 1630-01-153-7185 C-1-3 15

81996 1730-EG-119 4320-01-332-5472 C-1-2 7

81996 1730-EG-119 4320-01-332-5472 C-1-3 7

81996 1730-EG-120-1 4720-01-341-2337 C-1-1 9

81996 1730-EG-120-1 4720-01-341-2337 C-1-2 9

81996 1730-EG-120-1 4720-01-341-2337 C-1-3 9

1JD86 1730-UH-1001 1730-01-333-5964 C-1-1 10

97499 204--050-154-1 5315-00-895-6797 C-3-1 18

97449 204-050-157-7 1730-00-691-0552 C-3-1 1

97499 204-050-159-1 3120-00-897-5184 C-3-1 5

97499 204-050-161-1 1730-00-895-9344 C-3-1 9

97499 204-050-163-3 5315-01-016-0466 C-3-1 17

97499 204-050-164-1 5315-00-895-6799 C-3-1 19

97499 204-050-165-1 5365-00-845-2200 C-1-1 22

97499 204-050-165-1 5365-00-845-2200 C-1-2 22

97499 204-050-166-3 5365-00-898-0003 C-3-1 24

97499 204-050-167-1 5306-00-846-1655 C-3-1 6

97499 204-050-170-1 5340-00-895-9349 C-3-1 11

97499 204-050-170-1 5340-00-895-9349 C-3-2 11

97499 204-050-200-13 1730-00-895-9347 C-3-1 12

97499 204-050-200-13 1730-00-895-9347 C-3-2 12

97499 204-050-200-5 1730-00-980-9552 C-1-1 1

97499 2040050-133-1 5360-00-675-3329 C-3-1 20

97499 205-050-158-11 1730-00-066-0294 C-3-1 2

97499 205-050-158-12 1730-00-077-1766 C-3-1 3

45225 206731 5340-01-296-3658 C-2 4

C-35
TM 1-1730232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

97499 209-050-129-0101 4730-01-257-5769 C-3-2 27

97499 21-010B15-5-51 3120-00-179-7201 C-3-1 23

45225 211468 4820-01-299-5762 C-2 8

45225 211495 5330-01-296-2657 C-2 24

45225 211742 5315-01-297-2681 C-2 2

45225 211743 5365-01-296-2700 C-2 1

45225 211797 C-2 19

45225 212739 5330-01-296-2658 C-2 30

45225 21278-80 4820-01-297-4506 C-2 22

45225 213847 C-2 28

45225 213987 C-2 9

97499 214-050-011-101 1730-01-147-8581 C-1-2 11

97499 214-050-011-103 C-3-2 1

97499 214-050-011-5 3120-00-529-1538 C-3-2 24

97499 214-050-011-7 3120-00-537-3945 C-3-2 25

97499 214-050-011-9 3120-00-529-1555 C-3-2 26

97499 214-050-012-1 1730-01-147-8580 C-3-2 9

97499 214-050-014-001 5365-00-529-1585 C-3-2 5

97499 214-050-022-1 1730-01-147-8578 C-3-2 2

97499 214-050-022-3 1730-01-147-8579 C-3-2 3

33269 214-1 3120-01-063-5777 C-4-1 12

33269 214-1 3120-01-063-5777 C-4-2 12

33269 214-1 3120-01-063-5777 C-4-3 12

33269 214-2 3110-00-100-3137 C-4-1 11

33269 214-2 3110-00-100-3137 C-4-2 11

33269 214-2 3110-00-100-3137 C-4-3 11

97499 214-706-104-101 1730-01-133-9204 C-1-2 2

45225 215907 C-2 32

45225 21643-NP C-2 26

30003 2842687-3 4030-01-021-6339 C-3-2 42

30003 2842687-3 4030-01-021-6339 C-3-3 42

45225 29782 C-2 18

45225 300437 4320-01-287-5348 C-2 37

81996 3040-UH1-155 3040-00-963-6853 C-1-1 6

45225 305975 5305-01-296-7763 C-2 5

45225 305993 4820-01-297-9050 C-2 7

45225 307601 C-2 27

45225 308473 C-2 36

45225 308617 4810-01-297-5037 C-2 13

0FUR2 330570 5306-00-889-3003 C-1-1 18

0FUR2 330571 5306-00-911-4180 C-1-1 19

33269 40-117A 1630-01-153-7185 C-1-2 14

33269 40-76-1 1630-00-895-9348 C-1-1 13

97499 404-050-160-1 1730-00-895-9343 C-3-1 4

45225 420094-GR12 C-2 39

C-36
TM 1-1730-232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

45225 47139-GR12 C-2 38

45225 52711 5340-01-296-6523 C-2 29

45225 61295 C-2 21

45225 61780 4320-01-287-9662 C-1-1 4

45225 61780 4320-01-287-9662 C-1-2 4

45225 61780 4320-01-287-9662 C-1-3 4

45225 61813-GR12 5340-01-299-6751 C-2 3

73842 7.00X6 2620-00-269-7267 C-4-1 4

D2501 7.00X6-6PLY 2620-00-269-7553 C-4-1 3

09986 ALS-57 5365-01-265-9019 C-1-2 21

24434 ALS55 5365-00-368-9131 C-1-1 20

88044 AN320-20 5310-00-176-8118 C-1-1 23

88044 AN320-20 5310-00-176-8118 C-1-2 23

88044 AN320-20 5310-00-176-8118 C-1-3 23

88044 AN4-13A 5306-00-151-1421 C-4-1 5

88044 AN5-35A 5306-00-150-9237 C-4-2 5

88044 AN5-35A 5306-00-150-9237 C-4-3 5

88044 AN960-416 5310-00-141-1795 C-4-1 6

88044 AN960-416L 5310-00-167-0835 C-1-1 17

88044 AN960-416L 5310-00-167-0835 C-1-2 17

88044 AN960-416L 5310-00-167-0835 C-1-3 17

88044 AN960-516 5310-00-187-2399 C-4-2 6

88044 AN960-516 5310-00-187-2399 C-4-3 6

88044 AN960-516L 5310-00-167-0836 C-3-2 35

88044 AN960-516L 5310-00-167-0836 C-3-3 35

88044 AN960-616L 5310-00-167-0837 C-3-1 7

88044 AN960-616L 5310-00-167--837 C-3-2 7

88044 AN960-616L 5310-00-167-0837 C-3-3 7

77428 BU0953B 4320-00-866-7750 C-1-1 5

77428 BU0953B 4320-00-866-7750 C-1-2 5

13689 LWB22-5-34 5306-00-548-2543 C-3-2 6

96906 MS15001-2 4730-00-172-0001 C-3-1 16

96906 MS15001-2 4730-00-172-0001 C-3-3 16

96906 MS15001-2 4730-00-172-0001 C-3-2 16

96906 MS15001-4 4730-00-050-4207 C-3-1 13

96906 MS15001-4 4730-00-050-4207 C-3-2 13

96906 MS15001-4 4730-00-050-4207 C-3-3 13

96906 MS15002-1 4730-00-172-0010 C-3-1 15

96906 MS15002-1 4730-00-172-0010 C-3-2 15

96906 MS171598 5315-00-200-3183 C-3-1 21

96906 MS171598 5315-00-200-3183 C-3-3 39

96906 MS17984C824 5340-00-575-5740 C-3-2 17

96906 MS17984C824 5340-00-575-5740 C-3-3 17

96906 MS20004H24 5306-00-584-5141 C-3-2 28

96906 MS20822-4-4 4730-00-231-4010 C-1-1 28

C-37
TM 1-1730232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

28 MS20822-4-4 4730-00-231-4010 C-1-2 28

96906 MS20825-4 4730-00-277-9305 C-1-1 27

96906 MS20825-4 4730-00-277-9305 C-1-2 27

96906 MS20825-4 4730-00-277-9305 C-1-3 27

96906 MS21042L4 5310-00-807-1475 C-1-1 16

96906 MS21042L4 5310-00-807-1475 C-1-2 16

96906 MS21042L4 5310-00-807-1475 C-1-2

96906 MS21042L5 5310-00-807-1476 C-3-2 8

96906 MS21042L6 5310-00-807-1477 C-3-1 8

96906 MS21042L6 5310-00-807-1477 C-3-3 8

96906 MS21042L6 5310-00-807-1477 C-3-2 36

96906 MS21042L6 5310-00-807-1477 C-3-3 36

96906 MS21045-4 5310-00-061-7325 C-4-1 7

96906 MS21045-5 5310-00-982-4912 C-4-2 7

96906 MS21045-5 5310-00-982-4912 C-4-3 7

96906 MS21250-05036 5306-00-097-4662 C-3-3 6

96906 MS21250-06030 5306-00-489-3503 C-3-2 37

96906 MS21250-06030 5306-00-489-3503 C-3-3 37

96906 MS242665-300 5315-00-234-1863 C-3-1 14

96906 MS24665-283 5315-00-842-3044 C-3-2 14

96906 MS24665-283 5315-00-842-3044 C-3-3 14

96906 MS24665-426 5315-00-200-4545 C-1-1 24

96906 MS24665-426 5315-00-200-4545 C-1-2 24

96906 MS24665-426 5315-00-200-4545 C-1-3 24

96906 MS26535-2 2620-00-277-5398 C-4-2 3

96906 MS26535-2 2620-00-277-5398 C-4-3 3

96906 MS35650-3254 5310-00-400-5503 C-1-3 16

96906 MS51964-55 5305-00-724-6791 C-3-1 33

96906 MS51964-55 5305-00-724-6791 C-3-2 33

96906 MS51964-55 5305-00-724-6791 C-3-3 33

96906 MS51964-94 5305-00-725-3511 C-3-1 10

96906 MS51964-94 5305-00-725-3511 C-3-2 10

96906 MS51964-94 5305-00-725-3511 C-3-3 10

96906 MS51967-2 5310-00-761-6882 C-1-1 26

96906 MS51967-2 5310-00-761-6882 C-1-2 26

96906 MS51967-2 5310-00-761-6882 C-1-3 26

96906 MS51967-2 5310-00-761-6882 C-2 41

96906 MS90725-10 5305-00-088-0509 C-1-1 25

96906 MS90725-10 5305-00-088-0509 C-1-2 25

96906 MS90725-10 5305-00-088-0509 C-1-3 25

96906 MS90725-10 5305-00-088-0509 C-2 40

80205 NAS577B4A 5310-01-232-3542 C-3-2 30

80205 NAS578-4B 5340-00-948-9787 C-3-2 31

96906 NAS77A8-070P 3120-01-309-4824 C-3-3 24

80205 NAS77A8-144 C-3-3 23

C-38
TM 1-1730-232-13&P

Part Number Index

CAGEC PART NUMBER NSN FIGURE ITEM

81755 SE2939-1455 4010-00-222-4482 C-3-2 34

81755 SE2939-1455 4010-00-222-4482 C-3-3 34

81348 ZZ-I-550/G5/5.70/5-8 2610-00-528-7798 C-4-2 4

81348 ZZ-I-550/G5/5.70/5-8 2610-00-528-7798 C-4-3 4

C-39/(C-40 blank)
TM 1-1730-232-13&P

APPENDIX D

EXPENDABLE SUPPLIES AND MATERIALS LIST

D-1. SCOPE.

This appendix lists expendable/durable supplies and materials needed to operate and maintain the Ground Handling

Wheels Assembly. These items are authorized by CTA 50-970, Expendable/Durable 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 this listing

b. Column (2), Level. This column identifies the lowest level of maintenance that requires the listed item.

C Crew/Operator

0 Organizational Maintenance/Aviation Unit Maintenance (AVUM)

I Intermediate Maintenance/Aviation Intermediate Maintenance (AVIM)

c. Column (3), National Stock Number. This is the National Stock Number assigned to the item. Use it to

request or requisition the item.

d. Column (4), Description. Indicates the Federal Item name and, if required, a description to identify the item.

The last line for each Item indicates the Commercial and Government Entity (CAGE) Code in parenthesis followed by the

part number.

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.

D-1
TM 1-1730-232-13&P

Table D-1. EXPENDABLE/DURABLE SUPPLIES AND MATERIALS LIST

(1) (2) (3) (4) (5)

Item National

Number Level Stock Number Description U/M

1 C,O,I 9150-00-180-6181 Hydraulic Fluid gallon

(81349) MIL-H-5606

2 O, l 2620-00-269-7553 Tire

(D2501) 7.00 X 6-6PLY

(used with Model 204)

O,1 2620-00-277-5398 Tire 18 X 5.5, Type VII, 8 PLY each

(96906) MS 26535-1

(used with Model 214; Model 1730

3 O,1 2620-00-269-7267 Tube

(73842) 7.00 X 6

(used with Model 204)

O,1 2610-00-104-1178 Tube 18 X 5.5, Type VII, CL I each

(71513) ZZ-1-550/G5/5.70/5.00-8/OFFCTR

(used with Model 214; Model 1730)

4 O,1 7920-00-205-1711 Rag, wiping pound

50 lb Bale

(58836) A-A-531

5 O,1 9150-00-231-9062 Lubricating Oil, General Purpose gallon

5 gal can

(81348) W-L-800

6 C,O,I 6850-00-264-9037 Dry Cleaning Solvent gallon

55 gl dr

(81348) P-D-680

7 O,1 9150-00-190-0907 Grease, Automotive pound

35 lb cn

(81349) MIL-G-10924

8 1 8030-00-761-1584 Tape, Teflon roll

(81349) MIL-T-27730

D-2
TM 1-1730-232-13&P

APPENDIX E

ILLUSTRATED LIST OF MANUFACTURED ITEMS

No manufactured items have been identified for the Ground Handling Wheels Assembly.

E-1/(E-2 blank)
TM 1-1730-232-13&P

APPENDIX F

TORQUE LIMITS

F-1. GENERAL TORQUE INFORMATION.

The following information may be helpful, to assure proper torque on bolts and nuts.

1. Wet threads and seating area with lubricating oil before fitting nuts.

2. Screw the bolts in until they are squarely seated, using a socket wrench without handle extension or a box or

ordinary wrench without making use of the leverage.

3. Pre-load the bolts by holding the handle extension so that both hands are in contact with the wrench. When

using a box or ordinary wrench for pre-loading, the tip of your straight thumb holding the wrench must touch the head of

the bolt.

4. Tighten the bolts according to the appropriate torquing table, if necessary in stages, in conformity with the

tightening angles specified.

Table F-1. GENERAL TIGHTENING TORQUES FOR BOLTS AND NUTS

ITEM ITEM PART IN. LB.

DESCRIPTION SIZE NUMBER

NUT 1/4-INCH MS21045-4 50-70

NUT 5/16-INCH MS21045-5 100-140

F-2. SPECIFIC TORQUES.

The only specific torques required for the Ground Handling Wheels Assembly are provided for the wheel assemblies.

Table F-2. SPECIFIC TORQUE REQUIREMENTS

FIGURE ITEM ITEM BOLT PART IN. LB.

NUMBER NUMBER DESCRIPTION SIZE NUMBER

C-4-1 5 Wheel Assembly Bolts 1/4 AN4-13A 50-70

C-4-1 5 Wheel Assembly Bolts 5/16 AN5-35A 125-225

F-1/(F-2 blank)
TM 1-1730-232-13&P

GLOSSARY

SECTION I ABBREVIATIONS

AH-1 .................................................... Type of Helicopter

AVIM .................................................... Aviation Intermediate Maintenance

AVUM .................................................. Aviation Unit Maintenance

CAGEC ................................................ Commercial and Government Entity Code

CPC ..................................................... Corrosion Prevention and Control

EIR ...................................................... Equipment Improvement Recommendations

FSC ..................................................... Federal Stock Class

GSE ..................................................... Ground Support Equipment

MTOE .................................................. Modified Table of Organization and Equipment

NSN...................................................... National Stock Number

OH-58D ................................................ Type of Helicopter

PMCS. .................................................. Preventive Maintenance Checks and Services

RPSTL ................................................. Repair Parts and Special Tools List

SMR...................................................... Source, Maintenance and Recoverability

TAMMS ................................................ Army Maintenance Management System - Aviation

TBO ..................................................... Time Between Overhaul

TMDE . ................................................. Test, Measurement and Diagnostic Equipment

UH-1 .................................................... Type of Helicopter

UOC ..................................................... Usable On Code

SECTION II. DEFINITION OF UNUSUAL TERMS

There are no definitions of unusual terms.

Glossary-1/(Glossary-2 blank)



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