757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 4(96)

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 (c)  If the above condition is not correct, adjust the turnbuckles
 on cables SLA and SLB until the condition is correct.
 (d)  Move the horizontal stabilizer in the airplane nose down
 direction (stabilizer leading edge up) until it is stopped by
 the travel limit shutoff.
 (e)  Make sure that the stops on the upper end of the ballscrew are
 between 0.16 and 0.60 of a turn away from the stop lugs on the
 upper end of the ballnut.
 (f)  If the above condition is not correct, adjust the turnbuckles
 on cables SLA and SLB until the condition is correct.

 S 865-060
 (13)
 Use the STAB TRIM control levers to cycle the horizontal stabilizer through its full travel.

 S 215-061

 (14)
 Make sure that the conditions that follow are correct:

 (a)  
Cables do not touch the pulley or quadrant flanges for the full cable travel

 (b)  
Cables are in 2 degrees of the plane of the pulley or quadrant

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MAINTENANCE MANUAL

 (c)  Pulleys rotate freely with no interference from the guards.
 S 865-062
 (15) Move the horizontal stabilizer such that Dimension B on the stabilizer trim ballscrew actuator is 19.07 | 0.01 inches
 (484.4 +/- 0.25 mm).
 S 225-063
 (16)
 Make sure that the tension in cables SL and SP are 50 +/- 5 lbs (222 +/- 22 newtons).

 S 825-064

 (17)
 Adjust turnbuckles until rig pins E/ST3, E/ST4, and E/ST5 can be installed freely.

 S 825-065

 (18)
 If the turnbuckles on SLA or SLB are changed, do the steps that follow:

 (a)  
Adjust the turnbuckles on cables SLA and SLB until the conditions that follow are correct at the same time: 1) Use the STAB TRIM control levers to move the horizontal

 stabilizer in the airplane nose up direction (stabilizer
 leading edge down).
 2)  Make sure that the travel limit mechanism stops the horizontal stabilizer when the stop lugs on the lower end of the ballnut are between 0.16 and 0.60 of a turn away from the stop lugs on the upper flange of the gearbox.
 NOTE: One turn of the ballnut is equivalent to 0.625 inch
____ (15.87 mm) of axial movement along the ballscrew.
 3)  If the above condition is not correct, adjust the turnbuckles on cables SLA and SLB until the condition is correct.
 4)  Move the horizontal stabilizer in the airplane nose down direction (stabilizer leading edge up) until it is stopped by the travel limit shutoff.
 5)  Make sure that the stops on the upper end of the ballscrew are between 0.16 and 0.60 of a turn away from the stop lugs on the upper end of the ballnut.
 6)  If the above condition is not correct, adjust the turnbuckles on cables SLA and SLB until the condition is correct.
 S 435-066
 (19) Install clip locks on the turnbuckles.
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 S 625-067
 (20)
 Apply corrosion preventive compound on the turnbuckle threads that show.

 S 095-068

 (21)
 Remove rig pins E/ST3, E/ST4, and E/ST5.

 H.  
AIRPLANES WITH ALTERNATE STAB TRIM SWITCHES ON THE CONTROL STAND; Adjust the Limit Switch and Position Transmitter Module (Fig. 502)

 S 215-125
 (1)  Make sure the stabilizer is set such that Dimension B on the stabilizer ballscrew actuator is 19.07 |0.01 inches
 (484.4 +/- 0.25 mm).
 S 825-126
 (2)  
Adjust the tension in cables SL and SP to 50 |5 lbs (222 +/- 22 newtons) such that rig pins E/ST3, E/ST4, and E/ST5 can be put in freely.

 S 095-127

 (3)  
Remove rig pins E/ST3, E/ST4, and E/ST5.
　
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