S 434-021

 (2)  
Set the control column on the torque tube.

 NOTE: On airplanes with index marks on the control column and
____ torque tube, make sure that the index marks align before you engage the control column to the torque tube.
 S 424-022
 (3)
Do these steps to attach the control column to the torque tube:

 (a)  
Put the retaining rings on each side of the control column.

 (b)  
Install the bolts on the retaining rings.

 (c)  
Tighten the forward nuts and the aft nuts as follows: 1) Tighten each of the forward nuts 10 lb-in (1.1 Nm). 2) Tighten each of the aft nuts 10 lb-in (1.1 Nm).

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A 757 MAINTENANCE MANUAL
 3)  Continue to tighten the nuts by 10 lb-in (1.1 Nm) increments as specified above until the torque on each nut is 50-70 lb-in (5.7-7.9 Nm) and the retaining ring gaps are correct.
 (4)  S 434-023Do these steps to install the dust cover: (a) Adjust the dust cover to fit tightly into the dust seals after the column is installed. (b) Make sure the seal is installed correctly (Fig. 401). (c) Clean the gap between the dust cover and the seal. (d) Fill flush the gap with sealant.
 (5)  S 434-024Connect the wiring leads to the terminal block.
 (6)  S 434-041If you used Procedure A to disconnect the wires for the control column shaker, do these steps to connect the wires: (a) Route the column shaker wires from the bottom of the control column tube, through the grommet, to the column shaker connector. (b) Engage the two wires to the connector socket, and assemble the socket for the control column shaker.
 NOTE:____ Follow the standards in the Standard Boeing Wiring Practices Manual (SWPM 20-61-16) to assemble the socket.
 (c)  Connect the socket to the control column shaker.
 (7)  S 434-042If you used Procedure B to disconnect the wires for the control column shaker, do these steps to connect the wires: (a) Install two new splices to connect the column shaker wires, at the location where each wire was cut.
 NOTE:____ Follow the standards in the Boeing Standard Wiring Practices Manual (SWPM 20-30-12) to install the splices.
 (b)  Tie the column shaker wires to the wire bundle with wire ties if it is necessary.
 NOTE:____ If removed, install a new wire tie at each wire tie location along the wire bundle.
 (8)  S 094-025Remove rig pin E/ST6.

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757 MAINTENANCE MANUAL
 G. Control Column Test
 S 864-026
 (1)  
Move the control column forward and aft and then rotate the control wheel through full travel.

 (a)  
Make sure the control column and control wheel move freely.

 S 864-027
 (2)  
Supply electrical power (Ref 24-22-00).

 S 864-028

 (3)  
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:

 (a)  
11C11, STICK SHAKER LEFT

 (b)  
11E17, FLT CONT COMPUTER POWER LEFT

 (c)  
11E20, FLIGHT CONT CMPTR PWR CENTER

 (d)  
11E35, FLT CONT CMPTR PWR RIGHT

 (e)  
11H11 or 11C05, STAB TRIM CONT L

 (f)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 (g)  
11H18, FLT CONT SHUTOFF TAIL CENTER

 (h)  
11H20, STAB TRIM CONT RIGHT

 (i)  
11H28, FLT CONT SHUTOFF TAIL RIGHT

 (j)  
11H20 or 11J21, STICK SHAKER RIGHT

 S 864-029
 (4)  
To test the captain's control column, remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:

 (a)  
　
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