S 966-007
(5)
If the part is not in tolerance, repair or replace the part.
S 216-005
(6)
Examine these parts for rust and corrosion:
(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.
S 426-004
(7) Install the uplock actuator on the uplock mechanism (Ref 32-33-08/401).
TASK 32-33-08-206-009
3. Inspection of the Uplock Mechanism of the Body Landing Gear___________________________________________________________
NOTE: This is a scheduled maintenance task.
____
A. Procedure
S 216-010
(1)
Examine these parts for rust and corrosion:
(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.
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32-33-08
ALL ú ú 01 Page 605 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
BODY LANDING GEAR UPLOCK HOOK - REMOVAL/INSTALLATION
_______________________________________________________
1. General
_______
A. This procedure has these two tasks: ##||
(1)
Uplock Hook Removal
(2)
Uplock Hook Installation.
TASK 32-33-09-004-001
2. Body Landing Gear Uplock Hook Removal (Fig. 401)
_____________________________________
A. References
(1)
AMM 09-11-00/201, Landing Gear Down Locks
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AMM 32-33-14/401, Body Gear Uplock Actuator
(5)
AIPC 32-33-08
B.
Access
(1)
Location Zone
755 Body Landing Gear, LH
765 Body Landing Gear, RH
C.
Prepare for the Removal
S 424-040
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).
(2)
Remove the pressure from hydraulic system 1 (AMM 29-11-00/201).
S 864-003
S 424-041
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO INSTALL
_______ THE DOOR LOCKS ON THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT INSTALL THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(3) Do this task: "Landing Gear Door Lock Installation" (AMM 32-00-30/201).
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ALL ú ú 01 Page 401 ú Jun 18/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-006
(4)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P6, Main Power Distribution Panel
1) 6C28, ALT LG EXT NOSE
2) 6C31, ALT LG EXT BODY L
3) 6C32, ALT LG EXT BODY R
D.
Remove the Uplock Hook.
S 024-043
(1) Disconnect each end of the uplock actuator and move the actuator to the side (AMM 32-33-14/401).
NOTE: The uplock actuator remains in the plane. Do not remove the hydraulic lines.
S 024-044
WARNING:_______USE EXTREME CARE WHEN YOU REMOVE THE SPRINGS. SPRING TENSION CAN INJURE PERSONNEL OR DAMAGE PARTS.
(2)
Remove and discard cotter pin (13), remove nut (14), washer (17) and bolt (15). Move springs clear of hook (18). View A-A.
S 024-045 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：747-400 AMM 飞机维护手册 起落架 LANDING GEAR 4(145)
