-
Pressure Switch for the Servo Control Valve
B.
The Central Maintenance Computer (CMC) can isolate a malfunction to one or more of the electrical components on the Autobrake Pressure-Control Module.
TASK 32-42-11-002-001
2. Remove the Filter from the Autobrake Pressure-Control Module (Fig. 201)____________________________________________________________
A. Special Tools and Equipment
(1)
77144-T6 - Torque Adapter
Abex Corporation, Aerospace Division
3151 West 5th Street
Oxnard, CA 93030
B.
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)
AIPC 32-42-11-01
C.
Access
(1)
Location Zone
136 Wing Landing Gear Well - Right (Aft Bulkhead, Wing Gear Wheel Well)
D. Prepare for the Removal
S 492-119
(1) Make sure the ground locks are installed in all landing gear (AMM 09-11-00/201).
S 492-002
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 DAMGE TO EQUIPMENT.
(2)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(3)
Make sure that wheel chocks are installed at all wheels.
S 492-004
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-42-11
ALL ú ú 02 Page 201 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 842-005
(4)
Remove the pressure from hydraulic system No. 4 and the reservoir (AMM 29-11-00/201).
S 862-006
(5)
Release the parking brake.
E.
Remove the Filter (if the module is equipped with a external filter)
S 032-007
CAUTION: BE CAREFUL TO KEEP ALL CONTAMINATION OUT OF THE AUTOBRAKE
_______ PRESSURE-CONTROL MODULE. CONTAMINATION CAN CAUSE DAMAGE TO THE MODULE.
(1) Use the torque adapter to remove the cover for the filter (if installed).
NOTE: You must turn the cover counterclockwise to remove it.
____
S 032-009
(2)
Remove the retainers and the O-rings from the cover and discard the O-rings.
S 022-010
(3)
Remove the filter (if the module is equipped with a external filter).
S 492-011
(4)
Put a plug in the port, for the filter, of the module.
S 032-012
(5)
Remove the retainers and the O-rings from the filter and discard the O-rings.
TASK 32-42-11-402-013
3. Install the Filter on the Autobrake Pressure-Control Module (Fig. 201)
___________________________________________________________
A. Special Tools and Equipment
(1) 77144-T6 - Torque Adapter
Abex Corporation, Aerospace Division
3151 West 5th Street
Oxnard, CA 93030
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
32-42-11
ALL ú ú 01 Page 202 ú Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
AUTOBRAKE PRESSURE CONTROL MODULE
SEE A
ELECTRICAL
FWD CONNECTOR PRESSURE SWITCH FOR THE SOLENOID (RETURN) HYDRAULIC LINE HYDRAULIC
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