(4)
Do this task: "Leading Edge Flaps Activation" (AMM 27-81-00/201).
S 445-017
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747-400 MAINTENANCE MANUAL
ALTERNATE LIMIT SWITCH PACK - REMOVAL/INSTALLATION
__________________________________________________
1. General
_______
A. There are two tasks in this procedure. There is one task for the removal and one task for the installation of an alternate limit switch pack from the trailing edge flap power package. The procedure has these parts:
(1)
The retraction of the flaps
(2)
The deactivation of the flaps
(3)
The installation of the landing gear door locks
(4)
The removal of the limit switch pack
(5)
The installation of the limit switch pack
(6)
The removal of the door locks from the landing gear doors
(7)
The activation of the trailing edge flaps.
B.
You can use this procedure for the limit switch pack for the inboard or the outboard flaps.
TASK 27-51-18-004-001
2. Alternate Limit Switch Pack Removal (Fig. 401)
___________________________________
A. References
(1)
27-51-00/201, Trailing Edge Flap System
(2)
32-00-30/201, Landing Gear Door Locks
(3)
IPC 27-51-09 Fig. 1
(4)
IPC 27-51-09 Fig. 3
B.
Access
(1)
Location Zone
137 Body Gear Wheel Well, LH
138 Body Gear Wheel Well, RH
C.
Procedure
S 864-015
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF THE LE AND TE
_______ FLAPS AND FLAP DRIVE MECHANISMS BEFORE YOU MOVE THE FLAP CONTROL LEVER. WITH HYDRAULIC POWER REMOVED, THE FLAPS WILL MOVE AUTOMATICALLY BY ELECTRICAL POWER WHEN YOU MOVE THE FLAP CONTROL LEVER.
CAUTION: MAKE SURE THE TRAILING EDGE FLAPS ARE IN THE RETRACTED POSITION
_______ BEFORE YOU REMOVE THE ALTERNATE LIMIT SWITCH PACK. YOU CANNOT INSTALL THE SWITCH PACK IF THE FLAPS ARE EXTENDED.
(1)
Make sure the trailing edge flaps are fully retracted.
S 864-003
(2)
Do this task: "Trailing Edge Flaps Deactivation"
(Ref 27-51-00/201).
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747-400 MAINTENANCE MANUAL
SEE A
INBOARD TE FLAP POWER PACKAGE
ALTERNATE LIMIT SWITCH PACK
BOLT
(2 LOCATIONS)
RVDT (REF) A (2 LOCATIONS) WASHER
NOTE: THE INBOARD ALTERNATE LIMIT SWITCH PACK IS SHOWN. THE OUTBOARD ALTERNATE LIMIT SWITCH PACK IS EQUIVALENT.
Alternate Limit Switch Pack Installation Figure 401
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747-400 MAINTENANCE MANUAL
S 494-011
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK 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)
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本文链接地址：747-400 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(164)
