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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
2.
 CAM/BUSHING

3.
 BUSHING/BUSHING

(2 LOCATIONS) (2 LOCATIONS)

6. BUSHING/BOLT
A-A
NO. INDEX  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  WORN PART REPLACE  PART WORN REPAIR  REPAIR INSTR 
DIAMETER  PER-MITTED WEAR DIM.  ANCE CLEAR-MAX DIA 
MIN  MAX 
1  FITTING  ID  0.6247  0.6255  0.6290  0.0060  1 
BUSHING  OD  0.6257  0.6265  0.6230  X 
2  CAM  ID  0.8747  0.8755  0.8790  0.0060  2 
BUSHING  OD  0.8757  0.8767  0.8730  X 
3  BUSHING  ID  0.6875  0.6885  0.6910  0.0090  X 
BUSHING  OD  0.6845  0.6855  O.6820  X 
4  BUSHING  ID  0.6875  0.6890  0.6910  0.0090  X 
BUSHING  OD  0.6845  0.6855  0.6820  X 
5  FITTING  ID  0.8747  0.8755  0.8790  0.0060  2 
BUSHING  OD  0.8757  0.8767  0.8730  X 
6  BUSHING  ID  0.5000  0.5015  0.5045  0.0080  X 
BOLT  OD  0.4985  0.4995  0.4965  X 
7  BUSHING  ID  0.5000  0.5015  0.5045  0.0080  X 
BOLT  OD  0.4985  0.4995  0.4965  X 

MAXIMUM OVERSIZE HOLE TO BE 0.6567 INCH. INSTALL OVERSIZE OD BUSHING WITH 0.0002- TO 0.0018-INCH INTERFERENCE.
MAXIMUM OVERSIZE HOLE TO BE 0.9067 INCH. INSTALL OVERSIZE OD BUSHING WITH 0.0002- TO 0.0020-INCH INTERFERENCE.
Push-Pull Cam Mechanism Wear Limits
Figure 601 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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747-400
MAINTENANCE MANUAL

8. CAM OR FITTING/BUSHING (2 PLACES)

B-B  C-C

INDEX NO.  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  REPLACE PART WORN  REPAIR WORN PART  INSTR REPAIR 
DIAMETER  DIM. WEAR MITTED PER- DIA MAX CLEAR-ANCE
MIN  MAX 
8  CAM/FITTING  ID  0.4379  0.4384  0.4420  0.0070  3 
BUSHING  OD  0.4381  0.4386  0.4350  X 
9  BUSHING  ID  0.3125  0.3140  0.3160  0.0070  X 
BOLT  OD  0.3110  0.3120  0.3090  X 
10  FITTING  ID  0.7500  0.7505  0.7540  0.0070  4 
ROLLER  OD  0.7500  0.7510  O.7450  X 

MAXIMUM OVERSIZE HOLE TO BE 0.4692 INCH. INSTALL OVERSIZE OD BUSHING WITH 0.0007-INCH INTERFERENCE TO 0.0003-INCH CLEARANCE
ALUMINUM-NICKEL BRONZE BUSHING. DRILL HOLE MAXIMUM OF 0.9379 OVERSIZE. INSTALL BUSHING WITH 0.0004 TO 0.0023 INTERFERENCE FIT.
Push-Pull Cam Mechanism Wear Limits
Figure 601 (Sheet 3)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
747-400 MAINTENANCE MANUAL
 NOSE CARGO DOOR HINGE ACCESS CLEARANCE DOOR - REMOVAL/INSTALLATION
__________________________________________________________________
 1.  General_______
 A.  This procedure has two tasks:
 (1)  
The removal of the hinge access clearance door on the nose cargo door

 (2)  
The installation of the hinge access clearance door on the nose cargo door

 B.  
The nose cargo door must be correctly adjusted before the installation and adjustment of the hinge access clearance door.

 TASK 52-31-12-004-001
 2.  Hinge Access Clearance Door Removal (Fig. 401)___________________________________
　
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