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A
747-400 MAINTENANCE MANUAL
S 034-048
(4)
Hold the alternate antiskid module assembly and remove the four bolts and washers.
S 024-049
(5)
Remove the alternate antiskid module assembly from the airplane.
S 034-050
(6)
Remove the reducers from the SYS PRESS and the MTR PRESS ports of the alternate antiskid module assembly.
S 034-076
(7)
Remove the unions from the hydraulic fuses and the RETURN ports of the module.
S 034-077
(8)
Discard the O-rings.
TASK 32-42-02-404-051
5. Alternate Antiskid Module Assembly - Installation
_________________________________________________
A. Consumable Materials
(1)
C00272 Hydraulic Fluid - BMS 3-11
B.
References
(1)
AMM 29-11-00/201, Main Hydraulic Supply System
(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
AMM 32-42-00/501, Brake Control System
(4)
AIPC 32-42-02
(5)
SSM 32-42-01
(6)
WDM 32-42-14
WDM 32-42-15
WDM 32-42-16
WDM 32-42-17
C.
Access
(1)
Location Zones 118 Electrical & Electronics Compartment, RH (P180 DC Power Distribution Panel)
137 Body Landing Gear Well - Left (Forward bulkhead, body gear wheel well) Alternate Antiskid Module - Left Wing Gear
136 Body Landing Gear Well - Right (Forward bulkhead, body gear wheel well) Alternate Antiskid Module - Right Wing Gear
137 Body Landing Gear Well - Left (Aft bulkhead, body gear wheel well) Alternate Antiskid Module - Left Body Gear
138 Body Landing Gear Well - Right (Aft bulkhead, body gear wheel well) Alternate Antiskid Module - Right Body Gear
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
D. Procedure (Fig. 402)
S 494-052
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 494-088
(2)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 644-054
(3)
Lubricate the new O-rings with clean hydraulic fluid.
S 434-055
CAUTION: BE CAREFUL TO KEEP CONTAMINATION OUT OF THE PORTS OF THE
_______ ANTISKID MODULE. IF THE ANTISKID MODULE BECOMES DIRTY, IT CAN CAUSE A MALFUNCTION OF THE MODULE ASSEMBLY.
(4)
Install the O-rings on the reducers and install the reducers at the SYS/PRESS and MTR PRESS ports on the alternate antiskid module.
S 434-057
(5)
Install the O-rings on the unions and install the unions on the hydraulic fuses and the RETURN port on the alternate antiskid module assembly.
S 424-089
(6)
Put the alternate antiskid module assembly in its position on the mounting bracket and install the four bolts with washers and tighten.
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32-42-02
ALL ú ú 01 Page 417 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 434-058
(7) Connect the hydraulic lines (5 positions) to the alternate antiskid module assembly.
S 434-059
CAUTION: MAKE SURE THAT THE CORRECT CONNECTOR IS INSTALLED ON THE
_______ CORRECT ANTISKID VALVE. IF IT IS NOT INSTALLED CORRECTLY, AN ANTISKID SYSTEM MALFUNCTION WILL OCCUR.
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