Outboard Flap Track Wear Limits
Figure 601 (Sheet 1)

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BEARING PLATE (2 LOCATIONS)
ATTACHMENT
BEARING PLATE (2 LOCATIONS)
ATTACHMENT
FITTING
BEARING

CARRIAGE STOP, FLAP TRACKS NO. 1 AND 8
(OPTIONAL CONFIGURATION)
A-A

3
MAKE SURE THE SUM OF CLEARANCES A AND B
IS 0.01 TO 0.05 INCH (0.03 TO 0.13 cm).
THE MAXIMUM TOLERANCE IS 0.1 INCH (0.3 cm).

Outboard Flap Track Wear Limits Figure 601 (Sheet 2)
H99879
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2. BEARING/FUSE BOLT  4. BEARING/FUSE BOLT
INBOARD TRACK OUTBOARD TRACK
B-B B-B

Outboard Flap Track Wear Limits
Figure 601 (Sheet 3)

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DESIGN LIMITS WEAR LIMITS
DIAMETER
INDEX
PART NAME DIM.
NO. MINIMUM MAXIMUM INCHES INCHES (mm) (mm)
BUSHING  ID  1.1245 (28.56)  1.1260 (28.60)  1.1280 (28.65) 
FUSE BOLT BEARING  OD ID  1.1225 (28.56) 1.1245 (28.51)  1.1240 (28.58) 1.1250 (28.55)  1.1205 (28.65) 1.1280 (28.46) 
BUSHING FUSE BOLT  ID OD  (22.21) 0.8745 (28.51) 1.1225  (22.24) 0.8755 (28.55) 1.1240  (22.28) 0.8770 (28.46) 1.1205 
BEARING FUSE BOLT  ID OD  0.8745 (22.21) (22.17) 0.8730  0.8750 (22.23) (22.20) 0.8740  0.8770 (22.28) (22.12) 0.8710 
FUSE BOLT  OD  0.8730 (22.17)  0.8740 (22.20)  0.8710 (22.12) 

1
2
3
4

STRIP AND CHROME PLATE TO THE DESIGN TOLERANCES. CHAPTER 20
PERMITTED MAXIMUM
WEAR DIAMETER DIMENSION CLEARANCE INCHES INCHES (mm) (mm)
0.0075
(0.19)

(0.19)

0.0075
0.0060
(0.15)

(0.15)

0.0060
REPLACE
REPAIR
REPAIR
WORN
WORN
INSTR
PART
PART
X
4
X
X
X
4
X
4
X
X
X4
USE THE INSTRUCTIONS IN THE OVERHAUL MANUAL,
Outboard Flap Track Wear Limits
Figure 601 (Sheet 4)

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747-400 MAINTENANCE MANUAL
 OUTBOARD FLAP TRACK - APPROVED REPAIRS
______________________________________
 1.  General
_______
 A.  There is one task in this procedure, the removal of corrosion from the outboard flap track below the foreflap carriage stop.
 TASK 27-51-27-308-001
 2.  Remove The Outboard Flap Track Corrosion
________________________________________
 A.  Consumable Materials
 (1)  
C00259 Enamel - Primer, Green, BMS 10-11

 (2)  
C00032 Enamel - Exterior, Decorative, Protective, BMS 10-60, Type I

 B.  
References

 (1)  
AMM 27-51-27/401, Outboard Flap Track

 (2)  
SOPM 20-10-02, Machining of Alloy Steel
　
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