F.
Put the Airplane Back To Its Usual Condition

 S 644-017
 (1)  
Lubricate the grease fitting adjacent to the fuse bolt with BMS 3-33 grease.

 (2)  
Install the transmission and the ball screw (AMM 27-51-33/401).

 (3)  
Install the foreflap carriage and toggle (AMM 27-51-24/401).

 (4)  
Install the inboard flap (AMM 27-51-01/401).

 S 414-019
 S 414-020
 S 414-021
 NOTE: You will install the aft roller support and the movable flap
____ track fairing during the flap adjustment after you install the inboard flap.
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747-400 MAINTENANCE MANUAL
 INBOARD FLAP INBOARD TRACK - INSPECTION/CHECK
_____________________________________________
 1.  General_______
 A.  This procedure contains one task: an inspection of the inboard flap inboard track. To do the check you measure the fuse bolt, bushings and the bearing which attach the forward end of the flap track.
 B.  The inspection is usually done before a flap track is installed. The flap track must be removed to do the check.
 TASK 27-51-22-206-001
 2.  Inboard Flap Inboard Track Inspection_____________________________________
 A.  Standard Tools and Equipment
 (1)  
Micrometer - 1 to 2 Inch (2 to 5 cm), To Measure Inner Dimensions

 (2)  
Micrometer - 1 to 2 inch (2 to 5 cm), To Measure Outer Dimensions

 (3)  
Vernier Caliper

 B.  
References

 (1)  
27-51-22/401, Inboard Flap Inboard Track

 C.  
Access

 (1)  
Location Zone 561 Inboard Flap Track Fairing, Inboard Flap, LH (Track No. 4)

 661  Inboard Flap Track Fairing, Inboard Flap, RH (Track No. 5)
 D.  Procedure
 S 026-002
 (1)
Remove the inboard flap inboard track (Ref 27-51-22/401).

 S 226-003

 (2)  
Examine the fuse bolt, bushings, and the bearings for the inboard flap inboard track for worn areas:

 (a)  
Remove the parts to be examined.

 (b)  
Measure the parts.

 NOTE:  Use a micrometer or a vernier caliper.
____
 (c)  
Compare the dimensions you measured, with the permitted dimensions shown in Fig. 601.

 (d)  
Repair or replace the parts which are not in the tolerance.

 (e)  
Install the parts.

 (3)
Install the inboard flap inboard track (Ref 27-51-22/401).

 S 426-004
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MAINTENANCE MANUAL

SEE  A  SEE  B 
FLAP TRACK  A 
A  A  2. BEARING/FUSE BOLT 
SUPPORT FITTING FWD  B 
1. BUSHING/FUSE BOLT 
A-A 
Inboard Flap Inboard Track Wear Limits Figure 601 (Sheet 1) 

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747-400
MAINTENANCE MANUAL

INDEX NO. 1  PART NAME DIM. BUSHING ID  1.6245 1.6260 (mm) (mm) INCHES MINIMUM MAXIMUM INCHES DESIGN LIMITS DIAMETER (41.30)(41.26)  1.6305 (mm) PERMITTED DIMENSION INCHES WEAR WEAR LIMITS (41.41)  (mm) MAXIMUM DIAMETER CLEARANCE INCHES 0.0100  PART WORN REPLACE X  PART WORN REPAIR  REPAIR INSTR 
　
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