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Antiskid Valve Assembly (Alternate Antiskid Module) - Removal
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Antiskid Valve Assembly (Alternate Antiskid Module) - Installation
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Hydraulic Fuse (Normal Antiskid Module) - Removal
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Hydraulic Fuse (Normal Antiskid Module) - Installation
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Hydraulic Fuse (Alternate Antiskid Module) - Removal
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Hydraulic Fuse (Alternate Antiskid Module) - Installation
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Inlet Filter (Normal Antiskid Module) - Removal
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Inlet Filter (Normal Antiskid Module) - Installation
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Inlet Filter (Alternate Antiskid Module) - Removal
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Inlet Filter (Alternate Antiskid Module) - Installation
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Shutoff Valve (Normal Antiskid Module) - Removal
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Shutoff Valve (Normal Antiskid Module) - Installation
TASK 32-42-02-012-001
2. Antiskid Valve Assembly (Normal Antiskid Module) - Removal
__________________________________________________________
A. References
(1)
AMM 29-11-00/201, Main Hydraulic Supply System
(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
AIPC 32-42-02, Fig. 11
(4)
WDM 32-42-14 ,WDM 32-42-15, WDM 32-42-16, WDM 32-42-17
(5)
SSM 32-42-01
B.
Access
(1)
Location Zones 118 Electrical & Electronics Compartment, RH (P180 DC Power Distribution Panel)
137 Body Landing Gear Well - Left (Aft bulkhead, body gear wheel well) Normal Antiskid Module - Left Body Gear
138 Body Landing Gear Well - Right (Aft bulkhead, body gear wheel well) Normal Antiskid Module - Right Body Gear
571 Rear Spar to Landing Gear Support Beam, LH (Above the wing gear trunion) Normal Antiskid Module - Left Wing Gear
671 Rear Spar to Landing Gear Support Beam, RH (Above the wing gear trunion) Normal Antiskid Module - Right Wing Gear
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747-400 MAINTENANCE MANUAL
C. Prepare for the Removal
S 492-002
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.
(1)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 492-194
(2)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 492-003
(3)
Make sure that the chocks are installed at all the wheels.
S 862-195
(4)
Remove the pressure from hydraulic system No. 4 and the reservoir (AMM 29-11-00/201).
S 842-196
(5)
Release the parking brake.
S 862-006
(6)
Release hydraulic fluid from the brake accumulator with these steps:
(a)
Push-in on the brake pedals fully 10 times.
(b)
Look at the HYD BRAKE PRESS gage on the captain's instrument panel, and make sure the pressure stays the same after the last time you press the brake pedals.
S 862-007
(7)
Open these circuit breakers and attach DO-NOT-CLOSE tags:
(a)
P180, DC Power Distribution Panel
1) 180J7, ANTI-SKID 1-3
2) 180J8, ANTI-SKID 14-16
3) 180F7, ANTI-SKID 2-4
4) 180F8, ANTI-SKID 13-15
5) 180J22, ANTI-SKID 5-7
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747-400 MAINTENANCE MANUAL
6) 180J23, ANTI-SKID 10-12
7) 180F22, ANTI-SKID 6-8
8) 180F23, ANTI-SKID 9-11
D. Remove the Antiskid Valve Assembly (Normal Antiskid Module) (Fig. 201) 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 7(36)
