S 865-562

 (7)  
Move the captain's stabilizer-trim control-wheel-switches down (airplane nose up).

 (a)  
Make sure that the stabilizer moves in the airplane nose up direction (stabilizer leading edge down).

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A

757
MAINTENANCE MANUAL

 (8)  S 865-563Move the alternate stab trim switches forward while the stabilizer moves. (a) Make sure that the stabilizer stops in one second.
 (9)  S 865-564Let the stabilizer-trim control-wheel-switches and the alternate stab trim switches go back to the neutral position.
 S 865-565

 (10)
 Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.

 S 865-566

 (11)
 Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the CUTOUT position.

 S 865-567

 (12)
 Move the first officer's stabilizer-trim control-wheel-switches up (airplane nose down).

 (a)  
Make sure that the stabilizer moves in the airplane nose down direction (stabilizer leading edge up).

 S 865-568
 (13)
 Move the alternate stab trim switches aft while the stabilizer moves.

 (a)  
Make sure that the stabilizer stops in one second.

 S 865-569
 (14)
 Let the stabilizer-trim control-wheel-switches and the alternate stab trim switches go back to the neutral position.

 S 865-570

 (15)
 Move the first officer's stabilizer-trim control-wheel-switches down (airplane nose up).

 (a)  
Make sure that the stabilizer moves in the airplane nose up direction (stabilizer leading edge down).

 S 865-571
 (16)
 Move the alternate stab trim switches forward while the stabilizer moves.

 (a)  
Make sure that the stabilizer stops in one second.

 S 865-572
 (17) Let the stabilizer-trim control-wheel-switches and the alternate stab trim switches go back to the neutral position.
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757 MAINTENANCE MANUAL
 J. Stabilizer Trim Secondary Brake Test (Fig. 502)
 S 215-067
 (1)  
Make sure that electrical power is supplied (Ref 24-22-00).

 S 215-710

 (2)  
Make sure that the RIGHT STAB TRIM SHUTOFF switch on the P10 panel is at NORM.

 S 215-711

 (3)  
Make sure that the CENTER STAB TRIM SHUTOFF switch on the P10 panel is at CUTOUT.

 S 865-712

 (4)  
Move the stabilizer at least four units of trim away from one end of the travel range. Use the captain's or first officer's stabilizer-trim control-wheel-switches to move the stabilizer to this position.

 S 865-713

 (5)  
Push and hold the BRAKE BYPASS valve button on the right
 stabilizer-trim control module.

 NOTE: The button is on the bottom of the unit.
____
 The force necessary to push the button should be less than 25 pounds (111 newtons). You should push the button smoothly. If the force necessary to push the button is more than 25 pounds (111 newtons), remove the hydraulic power, push the button more than once, then supply the hydraulic power.
 S 865-714
 (6)  
Move the stabilizer-trim control-wheel-switches in the airplane nose up direction (stabilizer leading edge down).

 S 865-887

 (7)
Hold the switches in this position for approximately 10 seconds.

 (a)  
Make sure that there is no stabilizer movement.

 S 865-885
 (8)  Release the stabilizer-trim control-wheel-switches, then release the BRAKE BYPASS valve button.
　
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