757 MAINTENANCE MANUAL
BRAKE SEIZURE CONDITION (CONDITIONAL INSPECTION) - MAINTENANCE PRACTICES
________________________________________________________________________
TASK 05-51-15-212-001
1. Brake Seizure Conditional Inspection
____________________________________
A. References
(1)
AMM 05-51-14/201, High Energy Stop/Heat Damage Condition
(2)
AMM 32-41-10/401, Main Gear Wheel Brake
(3)
AMM 32-41-10/601, Main Gear Wheel Brake
(4)
AMM 32-45-03/601, Wheels
(5)
AMM 32-45-04/601, Tires
B. Examine Main Landing Gear Wheels and Brakes
S 022-002
(1) Remove the wheel and tire assembly of the main landing gear (AMM 32-45-01/401).
NOTE: You must remove the wheel and tire assembly before you can
____
remove the brake unit.
(a) Inspect the tires and wheels as follows: 1) Do this task: Wheels Inspection (Wheel removed from the
airplane) (AMM 32-45-03/601). 2) Do this task: Tire Inspection (AMM 32-45-04/601). 3) Remove the seized brake unit do this task: Main landing
gear brake removal (AMM 32-41-10/401)
NOTE: The brake assembly must be sent to the shop for
____ disassembly and a detailed inspection.
S 212-004
(2)
Examine the wheel bearing seal adjacent to the brake and replace the seal if it is damaged by heat (AMM 32-41-10/401).
S 212-005
(3)
Examine the joint on the axles and on the adjacent areas of the truck beam. Look for a brown shade color that is caused by overheating (AMM 05-51-14/201).
(a) If the paint is a brown shade color, repair the damage as necessary.
(4)
Examine the inflated tires and wheels for damage you can see.
S 212-006
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A
757 MAINTENANCE MANUAL
BURST/FLAT SPOTTED TIRES - MAINTENANCE PRACTICES (CONDITIONAL-INSPECTION)
_________________________________________________________________________
1. General_______
A. The examinations that follow are for conditions where tires are burst or flat spotted. These conditions are because of a locked wheel slide condition (not a tire structural failure) and the cause is not apparent. The examinations must be made in the sequence given in this section.
B. The examinations are divided into two phases. Phase I examinations are for condtions where only one tire is flat spotted or burst. Phase II examinations are for conditions where multiple tires are flat spotted or burst.
TASK 05-51-16-212-001
2. Burst/Flat Spotted Tires Conditional Inspection_______________________________________________
A. References
(1)
AMM 29-11-13/401, System C Return Filter Module
(2)
AMM 29-11-15/401, System L and R Return Filter Module
(3)
AMM 32-41-10/601, Main Gear Wheel Brakes
(4)
AMM 32-42-00/501, Antiskid/Autobrake System
(5)
AMM 32-44-00/501, Parking Brake System
(6)
AMM 32-45-03/601, Wheels
B. Phase I Single Flat Spotted or Burst Tire Examinations
S 712-002
(1)
Make sure the brake will operate correctly and is in a serviceable condition (AMM 32-41-10).
(2)
Examine the wheel for cracks or loose wheel bearings (AMM 32-45-03).
(3)
Make sure the brake will release correctly (AMM 32-42-00).
S 212-005
(4)
Make sure the routing of the hydraulic lines and the wiring runs are correct.
S 212-003
S 712-004
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05-51-16
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757 MAINTENANCE MANUAL
S 712-006
(5) Do the transducer spin test to make sure that the correct brake will release when the transducer motion is stopped (AMM 32-42-00).
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