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A
737-300/400/500MAINTENANCE MANUAL
 6) Tighten the nut on the large diameter bolt to less than 100
 pound-inches. 7) Tighten the small diameter bolt hand tight. 8) Install the cotter pins in the nuts.
 (b)  Attach the flap track to the aft support fitting: 1) Apply the corrosion preventive compound on the large diameter bolt. 2) Install the large diameter bolt through the side load link,
 the flap track and the main link. 3) Apply a layer of the primer on the small diameter bolts. 4) Install the small diameter bolts through the fail-safe
 link, the side load link and the track. 5) Install the washers and the nuts. 6) Tighten the forward nut hand tight. 7) Tighten the large diameter bolt to 600-700 pound-inches. 8) Tighten the aft nut. 9) Install the cotter pins in the nuts.
 E. Put the Airplane Back to Its Usual Condition
 S 644-031
 (1)  
Do the steps to lubricate the inboard trailing flaps if it is necessary (AMM 12-22-51/301).

 (2)  
Do this task: "Transmission Installation" (AMM 27-51-71/401).

 (3)
Do this task: "Inboard Flap Installation" (AMM 27-51-04/401).

 S 434-028
 S 434-029
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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737-300/400/500MAINTENANCE MANUAL
 INBOARD FLAP TRACKS - INSPECTION/CHECK
______________________________________
 1.  General_______
 A.  There is one task in this procedure: an inspection of the inboard flap tracks. To do the inspection, you measure the diameters of the parts that attach the inboard flap tracks.
 TASK 27-51-27-226-001
 2.  Inboard Flap Track Inspection_____________________________
 A.  Standard Tools and Equipment
 (1)  
Micrometer - 0 to 1 inch

 (2)  
Vernier Caliper

 B.  
References

 (1)  
27-51-27/401, Inboard Flap Tracks

 C.  
Access

 (1)  
Location Zone 309, 409 Wing Inboard Trailing Edge Flap and Spoilers

 D.  
Procedure

 S 036-002
 (1)
Do the applicable task: Inboard Flap Inboard Track Removal" or "Inboard Flap Outboard Track Removal" (Ref 27-51-27/401).

 S 226-003

 (2)
Measure the parts that attach the flap track (Fig. 601 or 602):

 (a)  
Remove the parts.

 (b)  
Use a micrometer or a vernier caliper to measure the parts.

 (c)  
Compare the dimensions you measured with the permitted dimensions shown in Fig. 601 or Fig. 602.

 (d)  
Replace the parts that are not in the tolerance.

 (e)  
Install the parts.

 S 436-004
 (3)  Do the applicable task: Inboard Flap Inboard Track Installation" or "Inboard Flap Outboard Track Installation" (Ref 27-51-27/401).
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A 737-300/400/500MAINTENANCE MANUAL
SEE  A  FORWARD SUPPORT FITTING  SEE  B 
FWD 
INBD  A  FLAP TRACK 1 

A
AFT TRACK SUPPORT FITTING
FLAP TRACK
A
FWD INBD
B
1 SEE OHM 57-53-16 FOR THE FLAP TRACK WEAR LIMITS
Inboard Flap Outboard Track Wear Limits Figure 601 (Sheet 1)
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A 737-300/400/500MAINTENANCE MANUAL
1. BUSHING/BOLT

NO. INDEX  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS  WORN PART REPLACE  PART WORN REPAIR  INSTR. REPAIR 
　
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