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27-21-71
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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
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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
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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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