F.
Put the Airplane Back to Its Usual Condition.
S 864-038
(1)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a)
P6, Main Power Distribution Panel
1) 6C29, ALT LG EXT WING L
2) 6C30, ALT LG EXT WING R
S 094-042
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS 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 AND DAMAGE TO EQUIPMENT.
(2)
Do this task: "Body Landing Gear Door Lock Removal"
(AMM 32-00-30/201).
S 094-043
(3)
Do this task: "Wing Landing Gear Door Lock Removal"
(AMM 32-00-30/201).
S 864-048
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(4) Pressurize hydraulic systems No. 1 and No. 4 (AMM 29-11-00/201).
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ALL ú ú 01 Page 410 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-030
WARNING: MAKE SURE ALL PERSONS AND EQUIPMENT ARE AWAY FROM THE DOOR
_______ OPERATION AREA. A FAST MOVEMENT OF THE DOORS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(5) Move the ground release handle for the doors for the main landing gear to the DOORS CLOSED position.
NOTE: The handle is in the aft inboard corner of the wheel well of
____ the body landing gear. You can get to the handle through the strut door opening. Hydraulic pressure will cause the doors to close.
S 864-031
(6) Remove systems No. 1 and No. 4 hydraulic power if it is not necessary (AMM 29-11-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
WING LANDING GEAR UPLOCK MECHANISM - INSPECTION/CHECK
_____________________________________________________
1. General
_______
A. This procedure contains a task to examine the uplock mechanism for the wing landing gear for worn areas.
B. To do the inspection of the uplock mechanism, examine these parts for worn areas:
(1)
The uplock hook
(2)
The uplock roller
(3)
The uplock actuator
(4)
The attach bolts for the uplock actuator.
C.
You must remove the uplock actuator for the wing landing gear to do the inspection/check.
TASK 32-32-08-206-004
2. Inspection of the Uplock Mechanism for the Wing Landing Gear
____________________________________________________________
A. References
(1)
20-11-01/401, Bearings and Bushings
(2)
32-32-08/401, Wing Gear Uplock Mechanism
B.
Access
(1)
Location Zone
135 Wing Landing Gear Wheel Well, LH
136 Wing Landing Gear Wheel Well, RH
C.
Procedure (Fig. 601)
S 026-001
(1)
Remove the uplock actuator from the uplock mechanism (Ref 32-32-08/401).
S 226-002
(2)
Examine these parts for worn areas:
(a)
The uplock hook and the roller
(b)
The rod end bolt and bushing of the actuator
(c)
The head end bolt and bushing of the actuator.
(3)
Measure the dimensions shown on figure 601.
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