32-51-04
ALL ú ú 01 Page 401 ú Oct 10/91
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A
747-400
MAINTENANCE MANUAL
B. Standard Tools and Equipment
(1)
Plastic or wooden spatula
C.
Consumable Materials
(1)
B00153 Solvent Toluene - TT-T-548
(2)
D00539 Penetrating Oil - WD-40
D.
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)
AMM 32-51-00/501, Nose Wheel Steering System
(5)
AMM 32-51-12/401, Nose Gear Steering Actuator
(6)
IPC 32-51-00 Fig. 1, IPC 32-51-60 Fig. 1
E.
Access
(1)
Location Zone
715 Nose Landing Gear
F.
Prepare for Removal
S 494-076
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 494-003
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.
(2)
Do this task: "Installation of the Door Locks on the Nose Landing Gear" (AMM 32-00-30/201).
S 494-004
(3)
Install the rigging pin in the summing lever mechanism (AMM
32-51-00/501).
S 844-005
(4)
Release pressure from hydraulic system No. 1 (AMM 29-11-00/201).
G.
Remove Steering Metering Valve (Fig. 401)
(1)
Remove the valve cover and the support bracket.
(2)
Remove the valve input arm from the valve.
S 014-006
S 034-007
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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ALL ú ú 01 Page 402 ú Oct 10/95
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A
747-400 MAINTENANCE MANUAL
2. METERING VALVE
ATTACH BOLTS SEE A
(2 LOCATIONS) METERING VALVE
3. WASHERS ASSEMBLY
4. COVER RETAINER
BOLTS
1. METERING VALVE A (19 LOCATIONS)
ATTACH BOLT
A
SEE A
RETAINER COVER
NUT
RETAINER NUT
B
METERING VALVE INPUT SHAFT/ARM
B
COVER
SUPPORT
BRACKET
TRUNNION
LOCKNUT
STEERING CYLINDER
UPPER SUPPORT PLATE
STEERING CABLES (2 LOCATIONS)
RIGHT STEERING CONNECTING
CYLINDER ROD
SUMMING LEVER
3. WASHERS UPPER TRUNNION LOCKNUT
FWD BACK UP RING (16 LOCATIONS)
PACKING
5. NUTS (8 LOCATIONS)LEFT STEERING CYLINDER SEAL TUBE
(4 LOCATIONS)
A
Steering Metering Valve Installation Figure 401 (Sheet 1)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A
747-400
MAINTENANCE MANUAL
SNAP RING (REMOVAL WITH VALVE INSTALLED ON AIRPLANE IS NOT RECOMMENDED)
SWIVEL POST
B-B
Steering Metering Valve Installation
Figure 401 (Sheet 2)
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-51-04
ALL ú ú 01 Page 404 ú Jun 10/88
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
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本文鏈接地址：747-400 AMM 飛機維護手冊 起落架 LANDING GEAR 8(16)
