S 112-012
 (3)  
Clean the oil fill valve with solvent:

 (a)  
Flush the oil fill valve with acetone.

 (b)  
Make the oil fill valve dry with a clean cloth to remove all signs of the solvent.

 S 642-106
 (4)  
Soak the O-ring in some of the hydraulic fluid for the shock strut.

 S 432-014

 (5)  
Install the O-ring on the oil fill valve.

 S 432-015

 (6)  
Install the oil fill valve with the pressure cap on the pressure gage assembly.

 (a)  
Tighten the oil fill valve to 22-25 pound-inches
 (2.5-2.8 newton-meters).

 S 432-016
 (7)  
Put the pressure gage assembly on the shock strut clamps.

 (8)  
Install the six nuts and washers.

 (9)  
Connect the hydraulic tube to the pressure gage assembly.

 (10)
 Install a lockwire from the oil fill valve to the tube connection.

 S 432-017
 S 432-018
 S 432-019
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 S 862-022
 (11)
 Slowly open the shutoff valve with a 3/16-inch hex wrench.

 S 782-020

 (12)
 Make sure the pressure gage operates correctly.

 S 792-021

 (13)
 Make sure there is no leakage.

 E.
Put the Airplane back to its Usual Condition

 S 092-052
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO REMOVE
_______ THE DOOR LOCKS FROM THE LANDING GEAR DOORS. THE DOORS CAN CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Do this task: "Removal of the Door Locks from the Wing Landing Gear" (AMM 32-00-30/201).

 S 092-053

 (2)  
Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).

 TASK 32-11-02-002-019
 4.  Wing Landing Gear Shock Strut Flow Fuse and Shutoff Valve Removal (Fig. 201 )_________________________________________________________________
 A. References
 (1)  
AMM 09-11-00/201, Towing

 (2)  
AMM 32-00-30/201, Landing Gear Door Locks

 (3)  
AMM 32-11-02/301, Wing Gear Shock Strut

 (4)  
AIPC 32-11-01 Fig. 5

 B.
Access

 (1)  
Location Zone
 735 Wing Landing Gear, LH
 745 Wing Landing Gear, RH

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú 01 Page 207 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
 C. Prepare for the Procedure
 S 492-054
 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 on all landing gear (AMM 09-11-00/201).
 S 492-055
 WARNING: YOU MUST CAREFULLY DO THE STEPS IN THE TASKS 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 492-056

 (3)  
Do this task: "Installation of the Door Locks on the Body Landing Gear" (AMM 32-00-30/201).

 D.
Procedure

 S 222-110
 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).
　
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