B.
Consumable Materials
(1)
D00288 Lubricant - MCS 352
C.
References
(1)
AMM 20-22-01/601, Electrical Bonding
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AMM 32-42-00/501, Brake Control System
(5)
IPC 32-42-11
(6)
SSM 32-41-01
(7)
WDM 32-41-31
D.
Access
(1)
Location Zones 118 Electrical & Electronics Compartment, RH (P180 DC Power Distribution Panel)
136 Wing Landing Gear Well - Right (Aft Bulkhead, Wing Gear Wheel Well)
E. Procedure (Fig. 401)
S 494-016
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.
(1)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 494-029
(2)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(3)
Lubricate the O-rings and the backup rings before you install them.
S 644-018
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32-42-11
ALL ú ú 01 Page 404 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 434-019
CAUTION: BE CAREFUL TO KEEP CONTAMINATION OUT OF THE AUTOBRAKE PRESSURE
_______ CONTROL MODULE. IT CAN CAUSE A MALFUNCTION OF THE MODULE.
(4)
Install the adapters with the O-rings and the backup rings on the hydraulic ports of the autobrake pressure control module (3 locations).
S 424-020
(5)
Do these steps to install the autobrake pressure control module:
(a)
Clean the mating surfaces between the module and the mounting braket.
(b)
Put the module on the support bracket and install the bolts, washers and nuts that connect it to the airplane (4 locations).
(c)
Make sure the electrical resistance between the module and the structure is not more than 0.0025 ohms (AMM 20-22-01/601).
S 434-030
(6)
Connect these components to the autobrake pressure control module:
(a)
The hydraulic lines (3 locations)
(b)
The electrical connectors, D439A, D439B, D439C and D439D.
S 864-021
(7)
Pressurize hydraulic system No. 4 (AMM 29-11-00/201).
S 864-022
(8)
Remove the DO-NOT-OPERATE tag and close this circuit breaker:
(a)
P180 DC Power Distribution Panel
1) 180J25 AUTOBRAKE
S 714-031
(9)
Do the Brake System BITE Test procedure in the "Ground Tests - Brake Control System" task (AMM 32-42-00/501).
S 714-032
(10)
Do the Autobrake Application Test procedure in the "Ground Tests -Brake Control System" task (AMM 32-42-00/501).
S 214-024
(11)
After 5 minutes, look for leaks at the fittings on the autobrake pressure control module.
(12)
Set the parking brake.
S 864-025
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32-42-11
ALL ú ú 01 Page 405 ú Oct 10/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 094-035
(13)
Do this task: "Removal of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 094-036
(14)
Do this task: "Removal of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
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