S 095-240

 (9)  
Remove rig pins E/ST7, E/ST8 and E/ST9.

 M.
PCA Input Control Rod Adjustment (Fig. 509)

 S 865-059
 (1) Make sure that Dimension B on the stabilizer ballscrew actuator is
 15.89 | 0.01 inches (403.6 | 0.3 mm).
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 S 865-060
 (2)  
Make sure that the power from the left, right, and center hydraulic systems is removed.

 S 715-004

 (3)  
Do the steps that follow to adjust the input control rod for the PCA:

 (a)  
Install rig pin E/ST7 (Fig. 506).

 (b)  
Make sure that rig pins E/ST8 and E/ST9 can be easily installed (Fig. 509).

 (c)  
If rig pins E/ST8 and E/ST9 cannot be easily installed, do the steps that follow to adjust the left or right PCA input control rod: 1) Adjust the length of the PCA input control rod until the

 conditions that follow are correct: a) The attachment bolt for the control rod can be easily installed through the rod and input crank. b) Rig pins E/ST7, E/ST8 and E/ST9 can be easily installed. 2) Install and tighten the attachment bolt for the control rod. 3) Tighten and put a lockwire on the control rod jamnut.

 (d)  
Remove rig pins E/ST7, E/ST8, and E/ST9.

 S 825-061
 (4)  
Adjust the PCAs (Refer to the Power Control Actuator Adjustment paragraph).

 N.
Power Control Actuator (PCA) Adjustment (Fig. 509)

 NOTE: The right hydraulic system supplies power to the outboard
____ PCAs. The left hydraulic system supplies power to the middle PCAs. The center hydraulic system supplies power to the inboard PCAs. Only supply power to one hydraulic system at a time during PCA adjustment. The middle PCA is adjusted first and is to be referred to for the outboard and inboard PCA adjustment.
 S 865-062
 (1)  
Do the steps that follow to prepare for the PCA adjustment:

 (a)  
Make sure that the temperatures of the upper and lower surfaces are the same and stay constant.

 NOTE: Temperature differences between the upper and lower
____ surfaces can cause thermal offset at the trailing edge.
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 (b)  
Make sure that Dimension B on the stabilizer ballscrew actuator is 15.89 | 0.01 inches (403.6 | 0.3 mm) (Fig. 502).

 (c)  
Make sure that the power is removed from the left, right and center hydraulic systems.

 (d)  
Install rig pin E/ST7 (Fig. 506).

 S 825-063
 (2)  
Do these steps to adjust the input pogo rod for the middle PCA on the left elevator:

 (a)  
Supply hydraulic power to the middle PCA.

 1)  Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H17, FLT CONT SHUTOFF TAIL LEFT
 2)  Put the L FLT CONTROL SHUTOFF switch on the P61 panel to the ON position.
 WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL
_______ SURFACES WHEN HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
 3)  Pressurize the left hydraulic system (AMM 29-11-00/201).
 (b)  
Make sure that the trailing edge upper surface on the left elevator aligns, by less than | 0.05 inch (| 1.3 mm), with the elevator rig position mark on the index plate.

 (c)  
If the trailing edge does not align correctly, adjust the input pogo rod for the middle PCA, as necessary (Fig. 509).

 NOTE: Always adjust the input pogo rod so that the elevator
____ moves up, in the direction of the elevator rig position mark on the index plate. If the elevator trailing edge is above the rig position mark, adjust the elevator below the mark. Then, adjust the elevator up until it is aligned correctly.
　
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