A320飞机维护手册 AMM LANDING GEAR 起落架4(148)

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R  (1) Saftey Precaution 
R R  WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON_______ THE LANDING GEAR. 
R R R R R R  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. 
R R  (a) Install the safety devices on the landing gear doors (Ref. TASK 32-00-00-481-002). 
R R  (2) Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001). 
R  (3) Move the MLG ground door-opening handle from the OPEN to the CLOSED position.
 NOTE : This is necessary so you can install the rigging pins.____ 
R  (4) Put the rigging pins in position. FOR 2521GM 
R  (5) Put the RIGGING PIN (98DNSA20208060) through the lever into the forward face of the MLG door uplock 2521GM. 
R  (6) Put the RIGGING PIN (98DNSA20208040) through the lever into the aft face of the MLG door uplock 2521GM.

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 Rigging of the MLG Door Uplocks 2521GM (2520GM)
 Figure 402/TASK 32-31-33-991-003
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R (7) Put the RIGGING PIN (98DNSA20208040) through the lever into the

 forward face of the MLG vent valve 2516GM. 
R  (8) Put the RIGGING PIN (98DNSA20208040) through the lever into the aft face of the door by-pass valve 2517GM.
 FOR 2520GM 
R  (9) Put the RIGGING PIN (98DNSA20208060) through the lever into the forward face of the MLG door uplock 2520GM. 
R  (10) Put the RIGGING PIN (98DNSA20208040) through the lever into the aft face of the MLG door uplock 2520GM. 
R  (11) Put the RIGGING PIN (98DNSA20208060) through the lever into the forward face of the cutout valve 2515GM. 
R  (12) Put the RIGGING PIN (98DNSA20208040) through the lever into the aft face of the door by-pass valve 2518GM.
 Subtask 32-31-33-820-050
 C. Adjustment of the MLG Door Uplock (Ref. Fig. 401/TASK 32-31-33-991-001, 403/TASK 32-31-33-991-002)
 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.
 (1) Put the rod assembly (2) between the forks of the lever (44) and make sure that the holes are aligned. If necessary adjust the rod assembly (2).
 (2) Remove and discard the lockwire from the locknuts (3) at both ends of the rod assembly (2).
 (3) Loosen the locknuts (3).
 (4) Turn the rod assembly (2) until the holes are aligned.
 (5) Tighten the locknuts (3).
 (6) Make sure that the threads of the rod ends are in safety.

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 Levers of the MLG Door Uplock 2521GM (2520GM) Figure 403/TASK 32-31-33-991-002
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 (7) Safety the locknuts (3) with corrosion-resistant steel lockwire 0.8 mm (0.032 in.) dia.
 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) Put the rod assembly (26) between the forks of the lever (48) and make sure that the holes are aligned. If necessary adjust the rod assembly (26).
 (8)
 Remove and discard the lockwire from the locknuts (25) at both ends of the rod assembly (26).

 (9)
 Loosen the locknuts (25).

 (10)
 Turn the rod assembly (26) until the holes are aligned.

 (11)
 Tighten the locknuts (25).

 (12)
 Make sure that the threads of the rod ends are in safety.

 (13) Safety the locknuts (25) with corrosion-resistant steel lockwire 0.8 mm (0.032 in.) dia. Subtask 32-31-33-560-051 R D. Attachment of the Control Rods
 (Ref. Fig. 401/TASK 32-31-33-991-001)
 WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THE SPECIAL

_______
 MATERIAL.
 THIS MATERIAL IS DANGEROUS.

 (1)
 Apply SPECIAL MATERIALS (Material No. 05-002) to the bolts (8) and

 (21) and the bushes (9) and (20).

 (2)
 Put the control rods (2) and (26) in position.

 (3)
 Install the bushes (9) and (20), the bolts (8) and (21), the washers

 (4) and (22) and the nuts (7) and (23).

 (4)
 Safety the nut (7) with the new cotter pin (6).
　
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