747-400 AMM 飞机维护手册 起落架 LANDING GEAR 3(50)

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 C.  Measure the fit of the upper jury strut spindle
 D.  Measure the fit of the door actuator strut for the lower drag strut door.
 E.  You must remove the component assembly for the drag strut to do the inspection check.
 TASK 32-13-19-206-001
 2.  The Body Gear Drag Strut Component Assembly for Worn areas Examination______________________________________________________________________ (Fig. 601)
 A.  References
 (1)  
20-11-01/401, Bearings and Bushings

 (2)  
32-13-19/401, Body Gear Drag Strut Component Assembly

 (3)  
IPC 32-13-05 Fig. 1, IPC 32-13-09 Fig. 2

 B.  
Access

 (1)  
Location Zone
 755 Body Landing Gear, LH
 765 Body Landing Gear, RH

 C.  
Procedure

 S 026-002
 (1)  
Remove the component assembly for the drag strut (Ref 32-13-19/401).

 S 226-003

 (2)  
Do a check of the worn area limits for the component assembly for the drag strut.

 (a)  
Measure the parts if it is necessary and compare the dimensions to the limit dimensions.

 (b)  
If the part is not less than the tolerance, repair or replace the part if it is necessary.

 S 426-004
 (3)  Install the component assembly for the drag strut (Ref 32-13-19/401).
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747-400
MAINTENANCE MANUAL

SPINDLE
1.
6.  
BUSHING/ SPACER AND

7.  
SPACER/BOLT

 

Body Gear Drag Strut Component Assembly Wear Limits
Figure 601 (Sheet 1)

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747-400
MAINTENANCE MANUAL

1. BUSHING/SPINDLE 2. BUSHING/SPINDLE

UNIVERSAL ASSEMBLY
D-D C-C
Body Gear Drag Strut Component Assembly Wear Limits Figure 601 (Sheet 2)
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747-400
MAINTENANCE MANUAL

INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  PART WORN REPLACE  PART WORN REPAIR  REPAIR INSTR. 
DIAMETER  DIM. 5 MITTED PER-WEAR  ANCE MAX CLEAR-DIAM 
MIN  MAX 
1  BUSHING  ID  3.802  3.804  3.8110  0.0120  X  1 
SPINDLE  OD  3.796  3.799  3.7920  X  2 
2  BUSHING  ID  4.002  4.004  4.008  0.0120  X  1 
SPINDLE  OD  3.996  3.999  3.992  X  2 
3  BUSHING  ID  1.876  1.877  1.8815  0.0077  X  1 
SPINDLE  OD  1.872  1.874  1.8690  X  2 
4  BUSHING  ID  2.126  2.127  2.1320  0.0080  X  1 
SPINDLE  OD  2.122  2.124  2.1190  X  2 
5  BUSHING  ID  2.500  2.5015 3  2.506  0.0070  X  2 
PIN  OD  2.498  2.499  2.495  X  2 
6  BUSHING  ID  0.810  4 0.811  0.8153  0.0063  X 
SPACER  OD  0.808  0.809  0.806  X 
7  SPACER  ID  0.625  0.626  0.6275  0.0045  X 
BOLT  OD  0.623  0.624  0.6215  X  2 

PROCURE REPLACEMENT BUSHING. INSTALL IN KEEL BEAM ATTACH FITTING PER 20-11-01 WITH INTERFERENCE
　
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