(10)
Set the parking brake.
S 862-045
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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A
747-400 MAINTENANCE MANUAL
S 862-046
(11)
Remove the power from hydraulic system No. 4 (AMM/29-11-00/201).
S 092-047
(12)
Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).
S 092-048
(13)
Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).
TASK 32-41-00-722-006
3. Antiskid Module Hydraulic Fuse - Functional Test________________________________________________
A. General
(1)
This procedure contains steps to do a test to make sure the hydraulic fuses operate correctly when they limit the quantity of fluid loss from the hydraulic system when a leakage occurs. Do the test again for each fuse in the normal and alternate brake systems.
(2)
You must do an operational test of the normal and alternate brake systems after you do the fuse capacity test. This procedure contains an operational test of the brake systems.
B.
Standard Tools and Equipment
(1)
Container, 1 U.S. gallon capacity minimum -Commercially Available
C.
Consumable Materials
(1)
D00153 Hydraulic Fluid, Fire Resistant - BMS 3-11
D.
References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 12-12-01/301, Hydraulic Systems
(3)
AMM 29-11-00/201, Main Hydraulic Supply Systems
(4)
AMM 32-00-30/201, Landing Gear Door Locks
(5)
AMM 32-42-02/201, Brake Control System
(6)
AIPC 32-42-02-05
(7)
AIPC 32-42-07-05
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A
747-400
MAINTENANCE MANUAL
E. Access
(1) Location Zones
135 Wing Landing Gear Well - Left (Forward bulkhead, wing gear wheel well) Alternate Antiskid Module - Left Wing Gear
136 Wing Landing Gear Well - Right (Forward bulkhead, wing gear wheel well) Alternate Antiskid Module - Right Wing Gear
137 Body Landing Gear Well - Left (Aft bulkhead, body gear wheel well) Normal Antiskid Module - Left Body Gear Alternate Antiskid Module - Left Body Gear
138 Body Landing Gear Well - Right (Aft bulkhead, body gear wheel well) Normal Antiskid Module - Right Body Gear Alternate Antiskid Module - Right Body Gear
571 Rear Spar to Landing Gear Support Beam, LH (Above the wing gear trunion) Normal Antiskid Module - Left Wing Gear
671 Rear Spar to Landing Gear Support Beam, RH (Above the wing gear trunion) Normal Antiskid Module - Right Wing Gear
F. Prepare for the Test
S 492-007
(1)
Make sure that the landing gear ground locks are installed
(AMM 09-11-00/201).
S 492-008
(2)
Make sure that chocks are installed at all wheels.
S 492-009
WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASK(S) 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 492-049
(4)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
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