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 27-21-71
 ALL  ú ú 01 Page 402 ú Mar 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 E. Remove the Torque Tube (Fig. 401)
 S 034-005
 (1)  Remove the nuts, washers, and bolts to disconnect these components from their connected cranks on the torque tube (View A):
 -standby input rod
 -vernier control rod
 -aft quadrant control rod
 -trim and feel rod
 S 934-006
 (2)  
Make marks to identify the installed positions of the lower crank, center crank, and upper crank on the torque tube.

 S 034-007

 (3)  
Remove the nuts, washers, and bolts that hold the lower crank to the torque tube.

 S 034-008

 (4)  
Remove the nuts, washers, and bolts that hold the center crank to the torque tube.

 S 034-009

 (5)  
Remove the nuts, washers, and bolts that hold the upper crank to the torque tube.

 S 034-010

 (6)  
Remove the bolts and washers that hold the upper bearing housing to the structure.

 S 034-011

 (7)  
Remove the nuts, washers, and bolts and remove the lower bearing housing from the structure.

 (8)  
Pull the lower crank down and remove it from the torque tube.

 S 034-013

 (9)  
Pull the lower bearing housing down and remove it from the torque tube.

 S 024-014

 (10)
 Pull the torque tube down through the cranks and remove it from the airplane.

 S 034-012
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-21-71
 ALL  ú ú 01 Page 403 ú Mar 15/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 TASK 27-21-71-424-015
 3.  Rudder Control Torque Tube Installation (Fig. 401)__________________________________________________
 A. Special Tools and Equipment
 (1)  Rig Pin Kit - F70207-93:
 ~........................................................................... | | | DIAMETER | LENGTH | | | REF NO. | F70207-( ) | (INCHES) | (INCHES) | FUNCTION | ............................................................................. | R-5 | -11 | 0.309-0.311 | 6.7 |0.25 | RUDDER FEEL AND | | | | | | CENTERING UNIT | 2.........…............….............…............….........................1
 B. Consumable Material
 (1)  
C00308 Corrosion Preventive Compound -MIL-C-11796, Class 3

 (2)  
D00294 Grease - BMS 3-24

 C.
References

 (1)  
12-31-51/201, Fin and Rudder Access Doors and Panels

 (2)  
27-21-00/201, Rudder and Rudder Trim Control System

 (3)  
27-21-71/501, Rudder Control Torque Tube

 (4)  
27-21-71/601, Rudder Control Torque Tube

 D.
Access

 (1)  
Location Zones
 101/102 Control Cabin (Left/Right)
 706 Vertical Stabilizer
 708 Rudder

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

 E.
Prepare for the Installation

 S 864-016
 (1)  Remove all hydraulic power from the rudder system (Ref 27-21-00/201).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-21-71
 ALL  ú ú 01 Page 404 ú Mar 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 S 214-017
 (2)  
Make sure you install the rig pin R-5 in the output crank of the feel and centering unit (Fig. 401).
　
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