S 024-084

 (2)
Disconnect the electrical connectors in the table that follows.

 ~.................................................................. | Left Wing Gear | Right Wing Gear | .................................................................... | D40781 | D40791 | | D40782 | D40792 | | D40783 | D40793 | | D40784 | D40794 | 2................................….................................1
 S 034-068
 (3)
Disconnect the electrical conduit from the connector bracket.

 (4)
Disconnect the electrical conduit from the cable bracket.

 S 034-069
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-11-01
 ALL  ú ú 03 Page 408 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 S 494-070
 (5)  Use a rope to hold the end of the conduit to the shock strut.
 S 864-011
 (6)  Supply electrical power if it is necessary (AMM 24-22-00/201).
 S 034-073
 (7)  Disconnect the hydraulic lines:
 (a)  Disconnect the five hydraulic lines at the junction bracket.
 NOTE:____ The junction bracket is immediately above the jury strut
 on the shock strut.
 (b)  Put caps on the disconnected hydraulic lines.
 (c)  Put plugs in the open fittings.
 (d)  Loosen the bracket at the top of the shock strut.
 (e)  Pull the hydraulic lines through the bracket.
 (f)  Use a rope to hold the hydraulic lines to the structure in the
 wheel well.
 S 034-014

 WARNING: USE A ROPE OR A SLING TO HOLD EACH WALKING BEAM BEFORE YOU
_______ DISCONNECT THE ENDS. EACH WALKING BEAM WEIGHS APPROXIMATELY 40 POUNDS. IF A WALKING BEAM FALLS, IT CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO THE EQUIPMENT.
 (8)  
Disconnect the inboard ends of the walking beams from the shock strut (AMM 32-11-15/401).

 S 494-015

 (9)  
Use a rope to hold the walking beams to the structure in the wheel well.

 NOTE: If the reason for the removal of the wing gear is to overhaul
____ the gear, and the walking beam is also scheduled for overhaul at this time, then you should also remove the walking beam from structure of the wheel well (AMM 32-11-15/401).
 S 034-016
 WARNING: USE A ROPE OR A SLING TO HOLD THE RETRACTION ACTUATOR BEFORE
_______ YOU DISCONNECT THE INBOARD END. THE ACTUATOR WEIGHS APPROXIMATELY 97 POUNDS WHEN IT CONTAINS HYDRAULIC FLUID. IF THE ACTUATOR FALLS, IT CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE EQUIPMENT.
 (10) Disconnect the inboard end of the retract actuator from the shock strut (AMM 32-32-01/401).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-11-01
 ALL  ú ú 02 Page 409 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 S 494-017
 (11)
 Use a rope to hold the actuator to the structure above the shock strut.

 (a)
Make sure the rod end of the actuator stays retracted.

 S 494-018
 (12)
 Replace the tilt actuator with the mechanical equipment lock.

 S 494-019

 (13)
 Install the oleo jack between the truck beam and the forward side of the shock strut.

 S 034-020

 (14)
 Remove the side strut assembly from the airplane (AMM 32-11-27/401).

 CAUTION:_______ USE A ROPE OR A SLING TO HOLD THE SIDE STRUT ASSEMBLY.  IF YOU
 DO NOT HOLD THE SIDE STRUT ASSEMBLY, YOU CAN CAUSE DAMAGE TO
 THE DOWNLOCK SEQUENCE VALVE.

 NOTE: You can disconnect the jury strut and the lower side strut
____ from the shock strut as an alternative. You can then use a rope to attach the side strut assembly to the inboard structure. This will keep the side strut away from the shock strut without the full removal of the side strut assembly.
 S 034-021
 (15) Remove the lockplate (8), the bearing nut (5), and the lockwasher (4) from the aft trunnion bearing of the wing landing gear.
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：747-400 AMM 飛機(jī)維護(hù)手冊 起落架 LANDING GEAR 1(78)