747-400 AMM 飞机维护手册 起落架 LANDING GEAR 2(51)

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 (4)  S 435-010Connect the rod end (3) to the link (2).
 NOTE:____ The bolt (18) must go through the link (2) and the side plates (1) with the bolt head forward.
 (a)  Tighten the nut to 36-60 pound-inches (4.06-6.78 Nm) and install the cotter pin.
 (5)  S 225-011Make sure the dimension between the spring housing and the lower pushrod nut (16) is 0.03 +/- 0.01 inch (0.8 +/- 0.3 mm).
 (6)  S 225-007If the dimension did not stay in tolerance, do the steps above again to get the correct dimension.
 (7)  S 435-012Tighten upper pushrod nut (14) to 36-60 pound-inches (4.06-6.78 Nm) and install lockwire.
 (8)  S 435-013Connect the lever (6) to the rod end (4). (a) Put a load on the hook (7) in the lower position to make it tight.

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
 S 225-014
 (9)  
Make sure that dimension B is 0.12 +/-0.01 inch (3.1 +/- 0.3 mm).

 S 825-015

 (10)
 If dimension B is not in tolerance, disconnect the lever and adjust the lower rod to get the dimension of 0.12 +/- 0.01 inch (3.1 +/-0.3 mm).

 S 435-016

 (11)
 Connect the lever (6) to lower rod end (4) and install the bolt.

 (a)  
Tighten nut (5) to 36 - 60 pounds-inches (16.3 - 27.2 Nm) and install the cotter pin.

 S 435-017
 (12) Tighten the locknut of the rod end (4) to 36 - 60 pound-inches
 (4.1 - 6.8 Nm) and install the lockwire.
 (a)  Make sure the lock tabs are installed correctly.
 S 095-018
 (13)
 Remove the ground lock for the landing gear from the landing gear that you are adjusting.

 S 225-019

 (14)
 Retract that landing gear.

 (a)  
Make sure the distance between the link (2) and the striker in the clevis of the side strut is 0.05 inch (1.3 mm) minimum.

 S 095-020
 (15) Extend the landing gear and remove the jacks (AMM 07-11-01/201).
 S 095-024
 WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
 DOOR LOCKS FROM THE LANDING GEAR DOORS.  THE DOORS CAN CLOSE
 QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY.  THIS

 CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (16)
 Do this task:  "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).

 S 095-006

 (17)
 Do this task:  "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 WING LANDING GEAR TRUCK MECHANICAL LOCK - INSPECTION/CHECK
__________________________________________________________
 1.  General
_______
 A.  This procedure contains a task to examine the fit of the parts on the truck mechanical lock.
 B.  The parts to examine on the truck mechanical lock of the wing landing gear includes:
 -
The pushrod and the sideplates

 -
The pushrod and the lever

 -
The lever and the frame

 -
The roller support bushings and the bearings.

 C.  
To do this procedure, you must remove the mechanical lock assembly.

 TASK 32-11-23-206-001
 2.  The Truck Mechanical Lock Inspection on the Wing Landing Gear (Fig. 601)
_____________________________________________________________
 A.  References
 (1)  
20-11-01/401, Bearings and Bushings

 (2)  
32-11-23/401, Wing Gear Truck Mechanical Lock

 (3)  
IPC 32-11-25 Fig. 1

 B.  
Access

 (1)  
Location Zone
 735 Wing Landing Gear, LH
 745 Wing Landing Gear, RH
　
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