S 496-054
(2)
Do this task: "Removal of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
(3)
Remove the pressure from hydraulic system No. 4 (AMM 29-11-00/201).
S 866-055
TASK 32-41-15-206-001
3. Examine the Brake Unit______________________
A. References
(1) AMM 09-11-00/201, Towing
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747-400
MAINTENANCE MANUAL
WEARINDICATOR PIN
Brake Wear Indicator
Figure 601
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747-400
MAINTENANCE MANUAL
(2)
AMM 29-11-00/201, Main Hydraulic Supply System
(3)
AMM 32-00-30/201, Landing Gear Door Locks
(4)
AMM 32-41-15/401, Landing Gear Brake Unit
(5)
AMM 32-45-01/401, Main Gear Tire/Wheel Assembly
B.
Access
(1)
Location Zones
755 Body Landing Gear - Left
765 Body Landing Gear - Right
735 Wing Landing Gear - Left
745 Wing Landing Gear - Right
C.
Prepare for the Inspection
S 496-002
(1)
Make sure you installed the landing gear ground locks
(AMM 09-11-00/201).
S 496-030
(2)
Make sure you install the chocks at all the wheel locations.
S 496-003
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.
(3)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 496-028
(4)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
D.
Examine the Brake Unit for Hydraulic Fluid Leaks
S 866-060
CAUTION: BE VERY CAREFUL NOT TO GET HYDRAULIC BRAKE FLUID ON THE BRAKE
_______ LININGS. THE BRAKE WILL NOT OPERATE CORRECTLY IF YOU GET HYDRAULIC BRAKE FLUID ON THE BRAKE LININGS.
(1) Supply pressure to hydraulic system No. 4 (AMM 29-11-00/201).
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747-400 MAINTENANCE MANUAL
S 786-005
(2)
Make sure the HYD BRAKE PRESS gage on the captain's instrument panel shows 3000 | 200 psi.
S 866-006
(3)
Release the parking brake.
S 796-007
(4)
Examine the wheel brake unit for leaks at these locations:
(a)
The brake hydraulic disconnect assembly
(b)
The brake pressure port
(c)
The brake bleeder valve
(d)
The brake carrier drilled passage plugs
(e)
The brake pistons.
(f)
If you find leaks, repair or replace the brake assembly.
S 716-008
(5)
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本文鏈接地址：747-400 AMM 飛機維護手冊 起落架 LANDING GEAR 6(102)
