@A318/A319/A320/A321

AIRCRAFT MAINTENANCE MANUAL

** On A/C ALL

Task 57-26-13-400-002-A

Installation of the Bearing Assembly of the MLG Actuator Attachment

WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A

TASK ON OR NEAR:

- THE FLIGHT CONTROLS

- THE FLIGHT CONTROL SURFACES

- THE LANDING GEAR AND THE RELATED DOORS

- COMPONENTS THAT MOVE.

WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR.

WARNING : BE CAREFUL WHEN YOU USE THE CONSUMABLE MATERIAL(S). YOU MUST OBEY THE

OPERATOR’S AND MANUFACTURER’S HEALTH AND SAFETY INSTRUCTIONS.

1. Reason for the Job

Self explanatory

2. Job Set-up Information

A. Fixtures, Tools, Test and Support Equipment

REFERENCE QTY DESIGNATION

No specific 1 ACCESS PLATFORM 2M (6 FT)

No specific AR WARNING NOTICE(S)

No specific Torque wrench: range to between 0.67 and 13.50 M.DAN (4.94 and 99.57

LBF.FT)

98D57004081000 1 SPANNER-R/I BEARING

B. Consumable Materials

REFERENCE DESIGNATION

Material No: 09-002 SEALANTS

-

Material No: 11-026 CLEANING AGENTS

SOLVENT GENERAL PURPOSE

Material No: 19-003 LINT-FREE COTTON CLOTH

C. Expendable Parts

FIG.ITEM DESIGNATION IPC-CSN

4 tab washer 57-26-13-01-030

D. Referenced Information

REFERENCE DESIGNATION

32-00-00-481-001-A Installation of the Safety Devices on the Landing Gears

32-00-00-481-002-A Installation of the Safety Devices on the Landing Gear Doors

32-31-46-000-001-A Removal of the MLG Actuating Cylinder

32-31-46-400-001-A Installation of the MLG Actuating Cylinder

(Ref. Fig. 57-26-13-991-00200-B - Details of the MLG Actuator Bracket Assembly.)

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REFERENCE DESIGNATION

(Ref. Fig. 57-26-13-991-00500-A - Installation Details of the Special Washer)

3. Job Set-up

Subtask 57-26-13-941-053-A

A. Safety Precautions

(1) Make sure that the safety barriers are in position.

(2) Make sure that the safety devices are installed on the landing gears (Ref. TASK 32-00-00-481-001-A)

and the landing gear doors (Ref. TASK 32-00-00-481-002-A).

(3) Make sure that the WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate

the landing gear. bay, zone 571 (671).

Subtask 57-26-13-860-053-A

B. Aircraft Maintenance Configuration

(1) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position below the applicable main landing

gear.

(2) Make sure that the applicable MLG actuating cylinder has been removed (Ref. TASK 32-31-46-000-001-

A).

4. Procedure

(Ref. Fig. 57-26-13-991-00200-B - Details of the MLG Actuator Bracket Assembly.)

Subtask 57-26-13-560-051-B

A. Preparation for Installation

(1) Clean the component interfaces and the adjacent areas with a LINT-FREE COTTON CLOTH (Material

No: 19-003) made moist with CLEANING AGENTS (Material No: 11-026) .

(2) Use a LINT-FREE COTTON CLOTH (Material No: 19-003) , made moist with CLEANING AGENTS

(Material No: 11-026) to clean the edges of the bush (2) and the adjacent area.

(3) Do an inspection of the component interface and/or the adjacent area.

(4) Make sure that the parts retained from the removed component are clean and in the correct condition.

(5) Apply a layer of SEALANTS (Material No: 09-002) around the edges of the bush (3).

Subtask 57-26-13-420-053-B

B. Installation of the Bearing Assembly

(1) Install the special washer (2) in the actuator attachment bracket.

CAUTION : MAKE SURE THAT THERE IS NO CLEARANCE BETWEEN THE SPECIAL WASHER AND THE

ACTUATOR ATTACHMENT BRACKET. IF YOU FIND CLEARANCE, YOU MUST CONTACT

AIRBUS.

(2) Make sure that the special washer (2) is correctly located on the lug of the actuator attachmentbracket.

(Ref. Fig. 57-26-13-991-00500-A - Installation Details of the Special Washer)

(3) Clean the special washer (2) and the bearing housing (1) with a clean lint-free cloth and CLEANING

AGENTS (Material No: 11-026) .

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(4) Apply a bead of SEALANTS (Material No: 09-002) around the anti-rotation washer (3) and the housing

of the bearing-assembly (1).

(5) Install a new (IPC-CSN 57-26-13-01) tab washer (4) .

NOTE : Make sure that the new tab washer (4) is correctly installed.

The tab of the tab washer (4) is used to safety the special nut (5).

(6) Use the SPANNER-R/I BEARING (98D57004081000) to install the special nut (5). TORQUE the

special nut (5) to between 4.0 and 4.5 M.DAN (29.50 and 33.19 LBF.FT).

(7) Safety the special nut (5) with the tab washer (4).

(8) Clean the component interfaces as follows:

(a) Clean the edge of the special nut (5), the special washer (4) and the adjacent areas with:

. a clean LINT-FREE COTTON CLOTH (Material No: 19-003) made moist with CLEANING

AGENTS (Material No: 11-026) .

(9) Apply a bead of SEALANTS (Material No: 09-002) around the special nut (5) and the special washer

(4).

5. Close-up

Subtask 57-26-13-410-051-A

A. Close Access

(1) Make sure that the work area is clean and clear of tool(s) and other items.

(2) Install the MLG actuating cylinder (Ref. TASK 32-31-46-400-001-A).

Subtask 57-26-13-942-051-A

B. Removal of Equipment

(1) Make sure that the work area is clean and clear of tool(s) and other items.

(2) Remove the safety barriers.

(3) Remove the warning notice(s).

(4) Remove the access platform(s).

(5) Remove the ground support and maintenance equipment, the special and standard tools and all other

items.

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