Inboard Aftflap Drive Mechanism Wear Limits
Figure 601 (Sheet 1)

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747-400 
MAINTENANCE MANUAL 
MIDFLAP 
B  PUSHROD 
ACTUATOR 
ROD  CRANK  B 
A 
AFTFLAP 
A 

A
6. FLANGED BUSHING/BOLT
1.
 FLANGED BUSHING/ FLANGED BUSHING

2.
 FLANGED BUSHING/BUSHING

B-B

7.
 BEARING/BOLT

8.
 FLANGED BUSHING/BUSHING

9.
 BUSHING/BOLT

A-A
3.
 BUSHING/BOLT

4.
 BEARING/BOLT

5.
 FLANGED BUSHING/BOLT

Inboard Aftflap Drive Mechanism Wear Limits
Figure 601 (Sheet 2)

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GENEVA CAM
CARRIAGE
E
UPSTOP
FITTING E
C

AFT ROLLER
G F SUPPORT
D
D G
C
F
PUSHROD  SPRINGS
12.
 FLANGED BUSHING/SCREW

13.
 FLANGED

CARRIAGE BUSHING/SCREW
B
15. FLANGED
11. FLANGED BUSHING/BOLT10. FLANGED
BUSHING/SHAFT 14. FLANGED
BUSHING/SHAFT 14. FLANGED BUSHING/BOLT29. ROLLER BUSHING/BOLT
17. BUSHING/ BUSHING
16. FLANGED  16. FLANGED
C-C
BUSHING/BOLT  BUSHING/BOLT
18. BUSHING/BOLT
D-D
Inboard Aftflap Drive Mechanism Wear Limits Figure 601 (Sheet 3)
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19. FLANGED BUSHING/BOLT

CAM  22. FLANGED  CAM 
BUSHING/BOLT 
E-E 
23. FLANGED 
BUSHING/BOLT 

26. FLANGED BUSHING/BUSHING
F-F
Inboard Aftflap Drive Mechanism Wear Limits Figure 601 (Sheet 4)
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H

30. FLANGED BUSHING/BOLT BUSHING/BOLT
BUSHING/BOLT
(2 LOCATIONS)

H-H
Inboard Aftflap Drive Mechanism Wear Limits
Figure 601 (Sheet 5)

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DESIGN LIMITS WEAR LIMITS
PERMITTED MAXIMUM
DIAMETER
INDEX WEAR DIAMETERPART NAME DIM.
NO. MINIMUM MAXIMUM DIMENSION CLEARANCE INCHES INCHES INCHES INCHES (mm) (mm) (mm) (mm)
BUSHING FLANGED  ID  (76.19) 2.9995  (76.23) 3.0010  (76.39) 3.0075 
FLANGED BUSHING BUSHING FLANGED  ID OD  (15.86) 0.6245 (76.11) 2.9965  (15.89) 0.6255 (76.14) 2.9975  0.6290 (15.98) (75.93) 2.9895 
BUSHING BUSHING  OD ID  (15.84) 0.6235 (11.11) 0.4375  (15.85) 0.6240 (11.14) 0.4385  (15.74) 0.6195 (11.23) 0.4420 
　
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