(c)  
Safety the flow fuse with a lockwire.

 S 432-040
 (8)  
Install the shutoff valve:

 (a)  
Connect the shutoff valve to the flow fuse.

 (b)  
Align the shutoff valve with the hydraulic tube.

 (c)  
Connect the hydraulic tube to the shutoff valve.

 (d)  
Tighten all connections.

 S 442-042
 (9)  
Open the shutoff valve with a 3/16-inch hex wrench.

 S 612-043

 (10)
 Do a full servicing on the shock strut (AMM 12-15-03/301).

 S 782-044

 (11)
 Make sure the pressure gage operates correctly.

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A
747-400 MAINTENANCE MANUAL
 S 792-045
 (12)
 Make sure there is no leakage.

 E.
Put the Airplane back to its Usual Condition

 S 092-060
 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 092-061

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

 TASK 32-11-02-102-038
 6.  Clogged Flow Fuse Repair________________________
 A. General
 (1)  
This procedure is applicable only when the shock strut does not agree with the curve on the servicing placard. Also, the pressure at the air valve must be different from the indication on the strut pressure gage.

 B.
Consumable Materials

 (1)  
D00507 Hydraulic Fluid - MIL-H-6083

 C.
References

 (1)  
AMM 09-11-00/201, Towing

 (2)  
AMM 12-15-03/301, Wing Landing Gear Shock Strut

 (3)  
AMM 32-00-30/201, Landing Gear Door Locks

 (4)  
AIPC 32-11-01 Fig. 5

 D.
Access

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

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747-400 MAINTENANCE MANUAL
 E. Prepare for the Procedure
 S 492-062
 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 492-063
 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 492-064

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

 F.
Procedure

 S 222-112
 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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