INTERFERENCE FIT LIMITS SHOWN MAY BE EXCEEDED PROVIDED MAXIMUM CLEARANCE IS NOT EXCEEDED DISTANCE BETWEEN BUSHING FLANGES DISTANCE ACROSS BUSHING FLANGES MAXIMUM AXIAL CLEARANCE FOR IN SERVICE REPAIR, INSTALL SPECIAL SHIM (REF 32-00-01/801); PREFERRED
OVERHAUL REWORK IS TO RESTORE PART TO DESIGN LIMITS USING NEW BUSHINGS PART IS REPAIRABLE. REFER TO OVERHAUL MANUAL FOR REPAIR INFORMATION
YOU MUST REMOVE THIS PART TO MEASURE THE NECESSARY DIMENSIONS (REF 32-11-32/401).
Wing Landing Gear Wheel Truck Wear Limits
Figure 601 (Sheet 4)
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A
747-400 MAINTENANCE MANUAL
WING LANDING GEAR UPLOCK ROLLER - MAINTENANCE PRACTICES
_______________________________________________________
1. General
_______
A. This procedure contains three tasks:
(1)
The removal of the uplock roller on the wing landing gear.
(2)
The installation of the uplock roller on the wing landing gear.
(3)
The adjustment of the drag brace pin on the wing landing gear to let the uplock roller to turn.
B.
The uplock roller on the wing landing gear is attached to the forward of the drag brace pin (which is on the lower side of the strut spindle). The maintenance procedure is the same for the two sides.
C.
You must remove the uplock roller bolt and assembly of the uplock roller for the removal.
D.
You must install the uplock roller bolt and assembly of the uplock roller for the installation.
E.
Examine the roller to make sure it moves freely.
TASK 32-11-13-002-001
2. Uplock Roller Removal on the Wing Landing Gear (Fig. 201)
______________________________________________
A. References
(1)
AMM 09-11-00/201, Towing
(2)
AMM 32-00-30/201, Landing Gear Door Locks
B.
Access
(1)
Location Zone
735 Wing Landing Gear, LH
745 Wing Landing Gear, RH
C.
Prepare for the Removal
S 492-046
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).
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A
747-400
MAINTENANCE MANUAL
SEE A
SHOCK STRUT
DRAG BRACE PIN
5. NUT
1. UPLOCK 3. SLEEVE
ROLLER BOLT
4. NEEDLE 2. ROLLERBEARINGS
A
Wing Gear Uplock Roller Installation Figure 201
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A
747-400 MAINTENANCE MANUAL
S 492-045
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