(18)
AIPC 32-42-20 Fig. 1,
(19)
AIPC 32-45-01 Fig. 2
(20)
AIPC 32-48-00 Fig. 10
C.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
D.
Prepare for the removal
S 864-071
WARNING: YOU MUST CAREFULLY INSTALL THE GROUND LOCKS IN ALL LANDING
_______ GEAR. AN ACCIDENTAL RETRACTION OF THE LANDING GEAR CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1) Install the ground locks in all landing gear (AMM 09-11-00/201).
S 494-072
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.
(2)
Do this task: "Installation of the Door Locks on the Wing Landing Gear" (AMM 32-00-30/201).
S 494-073
(3)
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).
S 844-004
(4)
Release the pressure from the hydraulic system No. 4
(AMM 29-11-00/201)
(5)
Remove the electrical power from the airplane (AMM 24-22-00/201).
S 864-005
S 614-096
CAUTION: BEFORE YOU DEFLATE THE STRUT MAKE SURE THAT THE AREA BELOW THE
_______ WINGS IS CLEAR. WHEN YOU DEFLATE THE STRUT THE WING CAN LOWER MANY FEET, WHICH CAN CAUSE DAMAGE TO THE EQUIPMENT.
(6) Release the pressure from the shock strut.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
S 844-006
WARNING:_______DO NOT LOOSEN OR REMOVE THE VALVE BODY WHICH HAS PRESSURE. THE VALVE BODY CAN BLOW OUT AND CAUSE INJURY TO PERSONS.
(7)
Remove the valve cap on the shock strut to release the pressure from the shock strut.
(a)
Loosen the outer nut no more than two turns.
(b)
When the air stops to flow from the valve, replace the cap.
S 864-007
(8)
Lift the airplane until all four wheels are off the ground
(AMM 07-11-01/201).
E.
Procedure
S 224-094
CAUTION: MAKE SURE THAT YOU DO NOT MOVE OR DAMAGE THE WING GEAR TRUCK
_______ SENSORS OR TARGET BRACKET. IF THE TARGET BRACKET OR SENSORS ARE MOVED, THEN THE AIRPLANE SYSTEMS MAY NOT RECOGNIZE AN IN-AIR CONDITION.
(1)
If the sensor or target bracket is moved or damaged, then do the task to measure the wing landing gear truck sensor clearance (AMM 32-61-22/201).
S 034-008
(2)
Remove all the four tires and the wheel assemblies
(AMM 32-45-01/401).
S 034-009
(3)
Disconnect and remove all the four brake assemblies
(AMM 32-41-15/401).
S 034-010
(4)
Disconnect the hydraulic lines from the support clamps on the lower torsion link.
S 034-011
(5)
Remove the hydraulic lines from the hydraulic line supports and move them away.
(6)
Remove the antiskid transducer from each axle (AMM 32-42-04/401).
S 034-012
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 034-013
(7) Remove the antiskid wires from the connectors in the axles (SWPM 20-10-11). (a) Pull the wires from the axles through the pull boxes.
S 034-015
(8) Loosen the conduit brackets from the truck and the nuts from the pull boxes (8). (a) Remove the lower section of the conduit from the truck. (b) Pull the wires from the pull boxes if it is necessary.
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