S 864-049
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(4) Pressurize hydraulic system 4 (AMM 29-11-00/201).
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MAINTENANCE MANUAL
S 844-067
(5) Push the brake pedals to the stops 5 times.
S 214-068
(6) Look for leaks at the parking brake module.
S 864-040
(7) Remove the DO-NOT-CLOSE tag and close this circuit breaker: (a) P6 Main Power Distribution Panel 1) 6L18 PARK BRAKE
S 724-043
(8) Do a test of the parking brake module. (a) Set the parking brake. (b) Make sure the EICAS message PARKING BRAKE SET shows on the EICAS display. (c) Make sure that the red manual override lever on the parking brake module is in POS 1.
(d) (e) (f) Release the parking brake.Make sure the EICAS message PARKING BRAKE SET does not show on the EICAS display.Make sure that the PARKING BRAKE DISAGREE and ANTISKID OFF indications do not show on EICAS.
(g) Make sure that the red manual override lever on the parking brake module is in POS 2.
S 864-044
(9) Set the parking brake.
S 864-045
(10)
Remove hydraulic pressure (AMM 29-11-00/201). S 864-046
(11)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
S 094-048 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK BELOW TO REMOVE THE
_______ DOOR LOCKS FROM THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(12) Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).
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S 094-047
(13) Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).
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747-400 MAINTENANCE MANUAL
PARKING BRAKE VALVE MOTOR - REMOVAL/INSTALLATION
________________________________________________
1. General
_______
A. This procedure contains two tasks:
(1)
The removal of the motor for the parking brake valve (referred to as the motor)
(2)
The installation of the motor.
B.
It is not necessary to remove the parking brake module or the parking brake valve to remove the motor. The motor is installed on the parking brake module. The parking brake module is installed on the keel beam in the wheel well for the right body landing gear.
TASK 32-44-08-004-046
2. Removal of the Motor for the Parking Brake Valve (Fig. 401)
________________________________________________
A. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 32-00-30/201, Landing Gear Door Locks
(3)
IPC 32-44-04 Fig. 1
(4)
SSM 32-44-01
(5)
WDM 32-44-11
B.
Access
(1)
Location Zones
138 Body Landing Gear Well - Right
221 Control Cabin, L.H.
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