A. Install the L/G Selector Valve (3)
 (1)
 Remove the blanking plugs.

 (2)
 Install the seals (6) in the hydraulic interface connections of the manifold (5).

 (3)
 Make sure that the seals (6) are installed with the PTFE backing ring on top.

 (4)
 Put the L/G selector valve (3) on the manifold (5).

 (5)
 Make sure that the locating pin on the manifold (5) is in the locating hole in the L/G selector valve (3).

 (6)
 Install the washers (2) and the screws (1). TORQUE the screws (1) to

 0.9 m.daN (79.64 lbf.in).
 WARNING : WEAR GOGGLES WHEN YOU REMOVE OR INSTALL THE LOCKWIRE. CUT,

_______ REMOVE AND DISCARD THE LOCKWIRE AS YOU DO THE TASK. LOOSE LOCKWIRE CAN CUT OR BLIND YOU.
 (a)
 Safety the screws (1) on the forward edge of the L/G selector valve (3) with corrosion-resistant steel lockwire 0.8 mm (0.032 in.) dia.

 (b)
 Remove the blanking caps.

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 (c) Make sure that the electrical connectors are clean and in the correct condition.
 (d) Connect the electrical connectors (4). Subtask 32-31-12-865-053
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1GA, 2GA, 52GA, 1701GK, 1702GK.
 Subtask 32-31-12-869-052
 C. Put the aircraft back to the ground condition.
 (1)
 Connect the PTU isolation coupling (Ref. TASK 29-23-00-860-002).

 (2)
 If the flight configuration precautions were obeyed, put the aircraft back to the serviceable condition (Ref. TASK 32-00-00-860-002).

 Subtask 32-31-12-860-052
 D. Preparation for Test
 (1)
 Remove the container.

 (2)
 Remove the warning notice(s).

 (3)
 Remove the access platform(s).

 (4)
 Close the right MLG door (Ref. TASK 32-12-00-410-001).

 (5)
 If necessary fill the reservoir of the Green hydraulic system to the correct level (Ref. TASK 12-12-29-611-001).

 Subtask 32-31-12-720-050
 E. Do this Test
 (1)
 Do the functional test of the normal extension and retraction system of the landing gear (Ref. TASK 32-31-00-720-002).

 (2)
 Open the right MLG door (Ref. TASK 32-12-00-010-001).

 (3)
 Make sure that there is no hydraulic fluid leakage from the L/G selector valve 40GA.

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 5. Close-up
________ Subtask 32-31-12-410-050
 A. Close Access
 (1)
 Apply corrosion protection to the screws (1) and the adjacent areas (Ref. TASK 51-75-13-916-002).

 (2)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (3)
 Close the right MLG door (Ref. TASK 32-12-00-410-001).

 (4)
 Remove the ground support and maintenance equipment, the special and standard tools and all other items.

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 BYPASS VALVE - MLG DOOR GROUND OPENING (2517GM,2518GM) - REMOVAL/INSTALLATION
_____________________________________________________________________________ TASK 32-31-13-000-001 Removal of the MLG Door Ground-Opening Bypass-Valve 2517GM (2518GM) 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.

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs R No specific safety barriers
R  No specific tape, protective No specific warning notice No specific access platform 2.8 m (9 ft. 2 in.) No specific container 5 l (1.3208 USgal)
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 B. Referenced Information
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM LANDING GEAR 起落架4(103)