32-51-21
 ALL  ú ú 01 Page 401 ú Mar 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
20.  NUT  2.  COTTER KEY CABLE NWSA 1. 
RUDDER PEDAL STEERING QUADRANT 19. UPPER MOUNTING BRACKET  BUS ROD 4. 3. CABLE GUARD  5.  STEERING ARM 
CLUTCH ARM  SEE  C 
18.  ROD ASSEMBLY A  6.  TO RUDDER PEDALS 
STRUCTURE CABLE GUARD CABLE DRUM CABLE NGPPA CABLE NGPPB CLUTCH CRANK 16. 17. 14.  SEE B ATTACH BOLT SHEAR RIVET INSPECTION HOLE ROD ASSEMBLY B RIG PIN HOLE INVERTED BOLT RETAINER (USE ONE TIME ONLY) 7. 8. 9. 10. 11. 12. 
15. LOWER MOUNTING BRACKET  13.  MOUNT BOLT  FWD 
A 
21. CABLE TERMINAL RETAINER 
24.  CABLE 
CONTROLLED SHEAROUT USE ONLY 1 MS20426AS RIVET 
22.  RETAINER BOLT 
B  C  23.  QUADRANT 

Rudder Pedal Steering Mechanism Installation
Figure 401 (Sheet 2)

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-51-21
 ALL  ú ú 01 Page 402 ú Feb 20/84
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (2)  
32-00-01/201, Ground Lock Assemblies

 B.
Procedure

 S 494-002
 (1)  
Install the ground locks in the nose landing gear
 (Ref 32-00-01/201).

 S 034-004

 (2)
Decrease the tension on cables NWSA, NGPPA, and NGPPB to zero.

 (a)  
Get access to the NWSA cable through access panel 1103 and to NGPPA and NGPPB through access panel 3124 (Ref 12-31-11/201).

 S 014-005
 (3)
Disconnect the rod assembly A (18) from the structure (16).

 S 014-006

 (4)
Disconnect the rod assembly B (10) from the steering arm (5).

 S 034-007

 (5)  
Remove the cable retainer bolt (22) on the end of the quadrant (23).

 S 034-027

 (6)  
Remove the retainer (21) from the cable end and install the retainer (21) and bolt (22) on the quadrant (23).

 S 034-008

 (7)  
Disconnect the cables NGPPA and NGPPB at turnbuckles (A).

 S 034-009

 (8)  
Remove the cotter pin (1) and remove the nut (20) from the mount bolt (13) on the upper mounting bracket (19).

 S 034-010

 (9)  
Hold the mount bolt (13), make the tabs straight on the turned bolt retainer (12), and remove the bolt (13).

 S 024-011

 (10)
 Remove all the steering mechanism of the rudder pedal which include the cables NGPPA and NGPPB.

 (11)
 Remove the turned bolt retainer (12) and discard.

 S 034-012
 TASK 32-51-21-404-013
 3.  Rudder Pedal Steering Mechanism Installation (Fig. 401)____________________________________________
 A. References
 (1)  
32-51-00/501, Nose Wheel Steering System

 B.
Procedure

 (1)  
Install a new turned bolt retainer (12).

 S 434-014
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-51-21
 ALL  ú ú 01 Page 403 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 824-015
 (2)  
Set all the steering mechanism of the rudder pedal which include the cables NGPPA and NGPPB.

 (a)  
Make sure that there is a sufficient clearance between the clutch crank and the end of the bolt.

 NOTE: This bolt holds the steering quadrant of the rudder
____
 pedal to the clutch arm.

 S 434-016
 (3)  
Install the mount bolt (13), the nut (20), and the cotter pin (1).

 S 434-017

 (4)  
Bend the retainer tabs to safety the mount bolt (13).

 S 834-018

 (5)  
Put the cables NGPPA and NGPPB through the fairleads and connect at the turnbuckle.
　
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