S 435-034

 (14)
 If disconnected, connect the pushrod to the nose wheel steering.

 S 415-035

 (15)
 Close the access doors and install the panels for the rudder (Ref 12-31-51/201).

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A
737-300/400/500MAINTENANCE MANUAL
 RUDDER CONTROL TORQUE TUBE - INSPECTION/CHECK
_____________________________________________
 1.  General_______
 A.  This procedure gives the instructions to make sure the rudder control torque tube (referred to as the torque tube) is not worn too much.
 TASK 27-21-71-226-001
 2.  Rudder Control Torque Tube Wear Limits (Fig. 601)______________________________________
 A.  Standard Tools and Equipment
 (1)  
Micrometer

 (2)  
Vernier Caliper

 B.  
References

 (1)  
27-21-71/601, Rudder Control Torque Tube

 C.  
Access

 (1)  
Location Zones
 706 Vertical Fin

 (2)  
Access Panel
 9516L TE Access Panel - Rudder
 9517L TE Access Panel - Rudder

 D.  
Procedure

 S 026-002
 (1)  
Remove the torque tube (Ref 27-21-71/401).

 (2)  
Measure the parts of the torque tube for worn areas.

 S 226-004

 (3)  
Compare the dimensions that you measured with the permitted dimensions shown in Figure 601.

 (4)
Replace or repair the parts that are not in the tolerance.

 S 226-003
 S 436-005
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A

737-300/400/500MAINTENANCE MANUAL
SEE A
2. BEARING/SHAFT 
A  A  FWD 
ROD INPUT  A  SEE  B 
1. BEARING/SHAFT 
B  FWD 
Figure 601 (Sheet 1) Wear Limits for the Rudder Control Torque Tube 

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A 737-300/400/500MAINTENANCE MANUAL
NO. INDEX  PART NAME  DIM.  DESIGN LIMITS  WEAR LIMITS PART WORN REPLACE  PART WORN REPAIR  INSTR. REPAIR 
DIAMETER  DIM. WEAR MITTED PER- ANCE CLEAR-DIA MAX 
MIN  MAX 
1  BEARING  ID  1.8120  1.8130  1.8160  0.0040  X 
SHAFT  OD  1.8110  1.8120  1.8080  X 
2  BEARING  ID  0.9990 1.0000  1.0030  0.0035  X 
SHAFT  OD  0.9985  0.9995  0.9955  X 
3  BEARING  ID  0.2497  0.2500  0.2529  0.0037  X 
BOLT  OD  0.2483  0.2492  0.2479  X 

A-A

Wear Limits for the Rudder Control Torque Tube
Figure 601 (Sheet 2)

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A
737-300/400/500MAINTENANCE MANUAL
　
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