747-400 AMM 飞机维护手册 起落架 LANDING GEAR 1(127)

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6  BUSHING  ID  1.2500  1.2510  1.2532  0.0052  X 
BOLT  OD  1.2480  1.2490  1.2458  X  1 
7  BUSHING  ID  1.2550  1.2600  1.2622  0.0140  X 
BOLT  OD  1.2480  1.2490  1.2458  X  1 
8  BEARING  ID  1.2495  1.2500  1.2522  0.0042  X 
BOLT  OD  1.2480  1.2490  1.2458  X  1 
9  ROLLER  ID  1.8745  1.8755  1.8782  0.0082  X 
SLEEVE  OD  1.8700  1.8730  1.8673  X 
10  BUSHING  ID  3.2490  3.2505  3.2547  0.071  X 
PIN  OD  3.2470  3.2480  3.2434  X  1 

Wing Landing Gear Drag Brace Wear Limits
Figure 601 (Sheet 3)

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A

747-400
MAINTENANCE MANUAL

YOU CAN REPAIR THIS PART. PUT CHROME PLATING ON THE PART AND GRIND IT TO THE DESIGN DIMENSIONS.
THIS IS THE DISTANCE BETWEEN THE BOLT HEAD AND THE BOLT EDGE PLUS A 1/6 TURN TO LOOSEN THE NUT.
REMOVE 0.06 INCH MAXIMUM OF MATERIAL FROM THE SMALL SHOULDER TO REMOVE THE BOLT. THIS WILL KEEP

THE BOLT AT THE SAME DIMENSIONS.
THIS IS THE DISTANCE BETWEEN THE OUTER FLANGE SURFACES OF THE OUTER BUSHINGS IN THE DRAG BRACE.
THIS IS THE DISTANCE BETWEEN THE OUTER FLANGE SURFACES OF THE INNER BUSHING IN THE DRAG BRACE.
THIS IS THE DISTANCE BETWEEN THE OUTER FLANGE SURFACES OF THE BUSHINGS IN THE TRUNNION FORK.
REPLACE THIS PART OR PUT SHIMS UNDER THE FLANGES OF THE BUSHINGS (0.015 INCHES MAXIMUM FOR EACH

BUSHING).
THE MEASURED DIMENSION CAN BE MORE THAN THE PERMITTED LIMIT IF THE MEASURED CLEARANCE IS NOT MORE
THAN THE MAXIMUM CLEARANCE.

Wing Landing Gear Drag Brace Wear Limits
Figure 601 (Sheet 4)

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A
747-400 MAINTENANCE MANUAL
 WING LANDING GEAR UPPER SIDE STRUT - REMOVAL/INSTALLATION
_________________________________________________________
 1. General
_______
 A. This procedure contains two tasks:
 (1)  
The removal of the upper side strut from the wing landing gear

 (2)  
The installation of the upper side strut on the wing landing gear.

 TASK 32-11-04-004-001
 2. Wing Landing Gear Upper Side Strut Removal (Fig. 401)
__________________________________________
 A. Special Tools and Equipment
 (1)  
20HME65B00161-1 - Wing Landing Gear Side and Jury Strut, Sling Assembly

 (2)  
2MIT65B08803-1 - Wing Landing Gear Bungee Restraining Tool

 B.
Standard Tools and Equipment

 (1)  
Hoist - Standard ~..................................................... | vertical range: | ground level to 19 feet | ....................................................... | maximum load: | 350 pounds | ....................................................... | load at maximum extension:| 205 pounds | 2...........................….........................1

 (2)  
Rope

 C.
References

 (1)  
AMM 07-11-01/201, Jacking Airplane

 (2)  
AMM 09-11-00/201, Towing

 (3)  
AMM 29-11-00/201, Main Hydraulic Supply System

 (4)  
AMM 32-00-30/201, Landing Gear Door Locks

 (5)  
AMM 32-32-16/401, Wing Gear Downlock Bungee

 (6)  
AIPC 32-11-05 Fig. 1

 (7)  
AIPC 32-11-10 Fig. 2

 (8)  
AIPC 32-32-16 Fig. 2,

 (9)  
AIPC 32-32-26 Fig. 2

 D.
Access

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

 E.
Prepare for the Procedure
　
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