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B.  Jack airplane for retraction of main landing gear (Ref Chapter 7, Jacking Airplane).
C.  Remove ground lock assemblies (Ref 32-00-01). Retract and extend gear to test operation of lock (Ref 32-32-0 A/T).
D.  Lower airplane and remove jacks.
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MAIN GEAR UPLOCK MECHANISM - INSPECTION/CHECK
1.  General
A.  This data consists of illustrations and wear limit charts. No procedure is given in this section for access to permit inspection. Refer to Main Gear Lock Mechanism - Removal/Installation for removal procedures.
2.  Main Gear Lock Mechanism Wear Limits
501 
Nov 15/72  BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.  32-32-31 Page 601 

Main Gear Uplock Mechanism Wear Limits  501 
32-32-31  Figure 601 (Sheet 1)  Feb 20/92 
Page 602 
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501  Main Gear Uplock Mechanism Wear Limits 
May 15/78  Figure 601 (Sheet 2)  32-32-31 
Page 603 
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INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  REPLACE WORN PART  REPAIR WORN PART  REPAIR INSTR. 
DIAMETER  MAX WEAR DIM.  MAX DIAM CLEAR-ANCE
MIN  MAX 
1  BUSHING  ID  2.000  2.001  2.002  0.005  X 
BOLT  OD  1.997  1.998  1.996  X  *[1] 
2  BUSHING  ID  0.5630  0.5640  0.5650  0.005  X 
BOLT  OD  0.5605  0.5615  0.5591  X  *[1] 
3  BUSHING  ID  0.5630  0.5640  0.5650  0.005  X 
BOLT  OD  0.5605  0.5615  0.5595  X  *[1] 
4  BUSHING  ID  1.250  1.251  1.252  0.005  X 
BOLT  OD  1.248  1.249  1.247  X  *[1] 
5  BEARING  ID  1.2495  1.2500  1.2532  0.005  X 
BOLT  OD  1.2480  1.2490  1.2470  X  *[1] 

Main Gear Uplock Mechanism Wear Limits  501 
32-32-31  Figure 601 (Sheet 3)  May 01/00 
Page 604 
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INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  REPLACE WORN PART  REPAIR WORN PART  REPAIR INSTR. 
DIAMETER  MAX WEAR DIM.  MAX DIAM CLEAR-ANCE
MIN  MAX 
6  BUSHING  ID  0.751  0.752  0.753  0.005  X 
BOLT  OD  0.748  0.749  0.747  X  *[1] 
7  BUSHING  ID  0.7510  0.7520  0.753  0.005  X 
BOLT  OD  0.7480  0.7490  0.747  X  *[1] 
8  BUSHING  ID  0.4380  0.4390  0.4400  0.005  X 
PIN  OD  0.4355  0.4365  0.4345  X  *[1] 
9  BUSHING  ID  0.4382  0.4392  0.4402  0.005  X 
PIN  OD  0.4355  0.4365  0.4345  X  *[1] 
10  BUSHING  ID  0.375  0.376  0.377  0.005  X 
BOLT  OD  0.373  0.374  0.372  X  *[1] 
11  BUSHING  ID  0.376  0.377  0.378  0.005  X 
BOLT  OD  0.373  0.374  0.372  X  *[1] 
12  FITTING  ID  0.375  0.376  0.377  0.005  X 
BOLT  OD  0.373  0.374  0.372  X  *[1] 
13  BUSHING  ID  1.1245  1.1255  1.1265  0.005  X 
BOLT (SHAFT)  OD  1.1210  1.1220  1.1200  X  *[1] 
14  BOLT (SHAFT)  ID  0.3750  0.3790  0.005  X  *[2] 
BOLT  OD  0.3720  0.3745  X 

501  Main Gear Uplock Mechanism Wear Limits 
May 01/00  Figure 601 (Sheet 4)  32-32-31 
Page 605 
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MAIN GEAR UPLOCK ACTUATOR - REMOVAL/INSTALLATION
1.  Equipment and Materials
A.  Gear Ground Assembly (Ref 32-00-01)
　
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