747-400
MAINTENANCE MANUAL

SHOCK STRUT ASSEMBLY

SCRAPER ASSEMBLY
SPLIT SCRAPER
(TEMPORARY REPLACEMENT ONLY)
A-A

Scraper Ring Installation for the Wing Landing Gear
Figure 202

A39362
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A
747-400 MAINTENANCE MANUAL
 S 492-046
 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 492-047

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

 D.
Procedure

 S 222-108
 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 862-004

 (2)  
Close the shutoff valve for the pressure gage with a 3/16-inch hex wrench.

 S 872-052

 (3)  
Use the oil fill valve to bleed the pressure from the tube between the pressure gage and the shutoff valve.

 NOTE: Use a small container to catch all fluid when it comes
____
 through the oil fill valve.

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A 747-400 MAINTENANCE MANUAL
 (4)  S 032-005Disconnect the tube from the pressure gage assembly.
 (5)  S 022-006Remove the six nuts and washers which hold the pressure gage assembly to the clamps on the shock strut.
 NOTE:____ The bolts must stay in the clamps after you remove the nuts and washers.

 TASK 32-11-02-402-007
 3. Wing Landing Gear Shock Strut Pressure Gage Installation (Fig. 201)
________________________________________________________
 A. Consumable Materials
 (1)  
B00062 Solvent - O-A-51, Acetone

 (2)  
B00316 Solvent - TT-N-95, Type I

 (3)  
D00507 Hydraulic Fluid - MIL-H-6083

 B.
References

 (1)  
AMM 09-11-00/201, Towing

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

 (3)  
AIPC 32-11-01 Fig. 5

 C.
Access

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

 D.
Procedure

 S 222-109
 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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A
747-400 MAINTENANCE MANUAL
 S 962-010
 (2)  Remove the oil fill valve and the pressure cap from the removed pressure gage assembly.
 NOTE: Use these on the replacement assembly if a new oil fill valve
____
 and a new pressure cap are not necessary.
　
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