S 865-530
 (6)  
Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.

 (a)
Make sure the stabilizer starts to move in one second.

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MAINTENANCE MANUAL

 (7)  S 865-531Release the alternate stab trim switches. (a) Make sure the stabilizer stops.
 (8)  S 865-532Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the CUTOUT position.
 (9)  S 865-533Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.
 S 865-534

 (10)
 Move the alternate stab trim switches aft (airplane nose up).

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

 S 865-535
 (11)
 Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the CUTOUT position while the stabilizer moves.

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

 S 865-536
 (12)
 Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.

 (a)  
Make sure the stabilizer starts to move in one second.

 S 865-537
 (13)
 Release the alternate stab trim switches.

 (a)  
Make sure the stabilizer stops.

 S 865-538
 (14)
 Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.

 S 865-539

 (15)
 Move each segment of the alternate stab trim switch forward while the other segment stays at neutral.

 (a)  
Make sure the stabilizer does not move.

 S 865-540
 (16)
 Move each segment of the alternate stab trim switch aft while the other segment stays at neutral.

 (a)  
Make sure the stabilizer does not move.

 S 865-541
 (17)
 Move each segment of the alternate stab trim switch in opposite directions (one airplane nose up and the other airplane nose down).

 (a)  
Make sure the stabilizer does not move.

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757 MAINTENANCE MANUAL
 S 865-706
 (18)
 Move each switch segment to the opposite position.

 (a)  
Make sure that the stabilizer does not move.

 F.  
AIRPLANES WITH STAB TRIM LEVERS ON THE CONTROL STAND; Manual Operation and Mechanical Travel Limits Test

 S 215-036
 (1)  
Make sure that the RIGHT and CENTER STAB TRIM SHUTOFF switches on the P10 panel are at NORM.

 S 865-037

 (2)  
Make sure that the right and center hydraulic systems are
 pressurized.

 S 865-038

 (3)
Move both of the STAB TRIM control levers forward full travel.

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

 S 865-039
 (4)  
Release both of the STAB TRIM control levers.

 (a)  
Make sure that the stabilizer movement stops.

 S 865-040
 (5)  
Move both of the STAB TRIM control levers forward full travel and hold until the travel limit mechanism cancels the lever input. (When the limit mechanism cancels, a sudden increase in force is necessary to hold the left lever forward.)

 S 865-041

 (6)  
Put the RIGHT and CENTER STAB TRIM SHUTOFF switches on the P10 panel to CUTOUT.

 S 215-042

 (7)  
Make sure that the upper stops of the stabilizer-trim ballscrew actuator have not hit each other.

 S 215-043

 (8)  
Make sure that both stabilizer trim position indicators show 0 | 1/4 unit of trim.
　
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