S 434-044
 (13) Tighten the cables (GDR3A and GDR3B - LH or GRD4A and GDR4B - RH) to the tension shown in Fig. 402.
 NOTE: Adjust the cable tension until the differential drums are on
____
 the stops.

 S 434-045
 (14)
 Connect the differential output rod to the differential.

 S 434-053

 (15)
 Install the bolt and the two cotter pins.

 S 834-046

 (16)
 Make sure that rig pin AE/GD-5 (LH) or AE/GD-6 (RH) is loose in the bus quadrant.

 S 834-047

 (17)
 Make sure that rig pin AE/GD-3 (LH) or AE/GD-4 (RH) is loose in the ground release handle.

 S 834-048

 (18)
 Make sure that rig pin AE/GD-7 (LH) or AE/GD-8 (RH) is loose in the uplock mechanism for the applicable wing gear.

 S 434-049

 (19)
 Install the locking clips on the cable turnbuckle.

 S 094-050

 (20)
 Remove the rig pins from the ground release handle, bus quadrant and uplock mechanism.

 S 434-051

 (21)
 Connect these electrical connectors to the uplock mechanism for the wing gear:

 (a)
Connector DM86 for the left actuator.

 (b)
Connector DM89 for the right actuator.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 01 Page 409 ú Oct 10/91
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A
747-400 MAINTENANCE MANUAL
 S 094-022
 WARNING:_______ OBEY THE REMOVAL PROCEDURE FOR THE DOOR LOCKS.  THE DOORS OPEN
 AND CLOSE QUICKLY.  THE MOVEMENT OF THE DOORS CAN CAUSE
 INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.

 (22)
 Remove the door locks from the body gear (AMM 32-00-30/201).

 S 864-017

 (23)
 Pressurize hydraulic system No. 4 (AMM 29-11-00/201).

 S 864-018

 (24)
 Make sure the pressure is removed from hydraulic system No. 1 (AMM 29-11-00/201).

 S 864-019

 (25)
 Move the ground release handle for the doors to the "doors open" position.

 S 864-020

 (26)
 Connect the operator rods for the wing gear doors to the applicable doors (AMM 32-00-30/201).

 S 714-021

 (27)
 Do the operational test for the alternate extension of the wing gear (AMM 32-36-00/501).

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 WING LANDING GEAR DOOR ACTUATOR RELEASE MECHANISM - REMOVAL/INSTALLATION
________________________________________________________________________
 1. General
_______
 A. This procedure has two tasks:
 (1)  
The removal of the actuator release mechanism for the doors of the wing landing gear

 (2)  
The installation of the actuator release mechanism for the doors of the wing landing gear

 TASK 32-36-08-024-001
 2. Wing Landing Gear Door Actuator Release Mechanism Removal
_________________________________________________________
 A. References
 (1)  
AMM 09-11-00/201, Towing

 (2)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (3)  
AMM 32-00-30/201, Landing Gear Door Locks

 (4)  
IPC 32-36-08 Fig. 1

 B.
Access

 (1)  
Location Zone 731 Wing Landing Gear Door, Center Section Inboard Panel, LH 741 Wing Landing Gear Door, Center Section Inboard Panel, RH

 C.
Prepare for the Removal

 S 494-003
 WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
 (1) Install the ground locks in all landing gear (AMM 09-11-00/201).
 S 494-004
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO INSTALL
　
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