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32-41-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
HYDRAULIC BRAKE SYSTEM - TROUBLE SHOOTING
_________________________________________
1. Do a Check on the System
________________________
A. References
(1)
AMM 29-15-00/201, Hydraulic Systems
(2)
AMM 32-41-00/501, Hydraulic Brake System
(3)
AMM 32-42-00/501, Antiskid System
(4)
AMM 32-43-01/501, Automatic Braking System
B.
Procedure
(1)
Do a check on the brake system operation (AMM 32-41-00/501).
NOTE: If the brake system has a malfunction, refer to the Hydraulic
____ Brake System Trouble Shooting Chart.
(2)
Supply hydraulic power to Systems A and B hydraulic power (AMM 29-15-00/201).
(3)
Do a check on the antiskid system operation (AMM 32-42-00/501).
(4)
Do a check on the operation of the automatic braking system (AMM 32-43-01/501).
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32-41-00
ALL ú ú 01 Page 101 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.ú
32-41-00
ALL úú 01 Page 102 ú Nov 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
2. Hydraulic Brake System Trouble Shooting Chart
_____________________________________________
A
737-300/400/500MAINTENANCE MANUAL
HYDRAULIC BRAKE SYSTEM - MAINTENANCE PRACTICES
______________________________________________
TASK 32-41-00-802-001
1. Bleed the Hydraulic Brake System_________________________________
A. General
(1)
The brake hydraulic system must be bled when a hydraulic line of the brake system is opened or if a component connected to the system is replaced. When the system is bled, the air in the brake lines or a component of the brake system is transmitted to the reservoir by the return lines or released to the atmosphere.
(2)
The quantity of time to bleed the system will be kept to a minimum if the brakes are filled and bled on the bench.
(3)
There are two tests in this task: one for the Normal Brake System and one for the Alternate Brake System.
B.
Standard Tools and Equipment
(1)
Container - 2 U.S. gallons capacity
(2)
Locks - Ground
C.
Consumable Materials
(1)
Hydraulic Fluid, Fire Resistant - BMS 3-11, to replenish system after bleeding
D.
References
(1)
AMM 12-12-00/301, Hydraulic Reservoir
(2)
AMM 24-22-00/201, External Electrical Power
(3)
AMM 29-15-00/201, Hydraulic System
(4)
AMM 32-00-01/201, Ground Locks
E.
Access
(1)
Location Zone
101 Left Control Cabin
102 Right Control Cabin
310 Left Main Landing Gear
410 Right Main Landing Gear
F.
Bleed the Brake System to the Antiskid Valves
S 492-002
(1)
Make sure that the ground locks of the landing gear are installed in the nose gear (AMM 32-00-01/201).
(2)
Supply the external electrical power (AMM 24-22-00/201).
(3)
Pressurize hydraulic system B (AMM 29-15-00/201).
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