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

 S 865-210
 (28)
 Move the stabilizer-trim control-wheel-switches on the first officer's control wheel in opposite directions (one airplane nose up and the other airplane nose down).

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

 S 865-211
 (29)
 Move the stabilizer-trim control-wheel-switches to the opposite position.

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

 G.  
AIRPLANES WITH ALTERNATE STAB TRIM SWITCHES ON THE CONTROL STAND; Alternate-Electrical Operation Test

 S 865-589
 (1)  
Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the CUTOUT position.

 S 215-590

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

 S 215-591

 (3)  
Make sure this circuit breaker on the P11 panel is closed:

 (a)  
11B19, STAB TRIM ALT

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757
MAINTENANCE MANUAL

 (4)  S 865-592Move the alternate stab trim switches forward (airplane nose down). (a) Make sure the stabilizer moves in the airplane nose down direction (stabilizer leading edge up).
 (5)  S 865-593Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to CUTOUT while the stabilizer moves. (a) Make sure the stabilizer stops in one second.
 (6)  S 865-594Put 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.
 (7)  S 865-595Release the alternate stab trim switches. (a) Make sure the stabilizer stops.
 (8)  S 865-596Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the CUTOUT position.
 (9)  S 865-597Put the CENTER STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.
 S 865-598

 (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 865-599
 (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 865-600
 (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 865-601
 (13)
 Release the alternate stab trim switches.

 (a)  
Make sure the stabilizer stops.

 S 865-602
 (14) Put the RIGHT STAB TRIM SHUTOFF switch on the P10 panel to the NORM position.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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757 MAINTENANCE MANUAL
 S 865-603
 (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 865-604
 (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 865-605
 (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.

 S 865-606
 (18)
 Move each switch segment to the opposite position.

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

 H.
Test Electrical Travel Limits

 NOTE: The stabilizer may not be in electrical control range if it
　
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