(13)
 Move the RRCM test switch to NORMAL.

 M.
Ratio Changer Authority - Test

 NOTE: Before you do the test, make sure the airplane is stable at
____ ambient air temperature |10.0 degrees F (|5.5 degrees C) for at least one hour and that test switches on RRCM (both boxes) is set to "NORMAL".
 S 825-208
 (1)
Do these steps to put the rudder pedals in their neutral positions:

 (a)  
Turn the adjustment crank for the captain's rudder pedals clockwise until the pedals are in their full forward positions.

 (b)  
Turn the adjustment crank counterclockwise 3.6 turns and put it in the nearest detent position.

 S 225-209
 (2)  
Pressurize the pitot-static system to 124 |1 knots (impact pressure approximately 0.743 inch of mercury (25.2 millibar)) (AMM 34-11-00/201) and do these steps:

 (a)  
Move the captain's left pedal to its full forward position and do this check: 1) Make sure the rudder moves to its left 41.37 |1.40 inches

 (1050 +/- 35 mm) (30.6 |1.0 degrees).

 (b)  
Slowly release the captain's left rudder pedal.

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MAINTENANCE MANUAL

 (c)  Move the captain's right pedal to its full forward position and do this check: 1) Make sure the rudder moves to its right 41.37 |1.40 inches
 (1050 +/- 35 mm)(30.6 |1 degrees).
 S 225-210
 (3)  
Increase the pitot-static pressure to 141 |1 knots (impact pressure approximately 0.963 inch of mercury (32.6 millibar)) (AMM 34-11-00/201) and do these steps:

 (a)  
Move the captain's left pedal to its full forward position and do this check: 1) Make sure the rudder moves to its left 34.40 |1.40 inches

 (874 +/- 35 mm)(25.2 |1.0 degrees).

 (b)  
Slowly release the captain's left rudder pedal.

 (c)  
Move the captain's right pedal to its full forward position and do this check: 1) Make sure the rudder moves to its right 34.40 |1.40 inches

 (873 +/- 35 mm)(25.2 |1.0 degrees).
 S 225-211
 (4)  
Increase the pitot-static pressure to 275 |1 knots (impact pressure approximately 3.779 inches of mercury (127.97 millibar)) (AMM 34-11-00/201) and do these steps:

 (a)  
Move the captain's left pedal to its full forward position and do this check: 1) Make sure the rudder moves to its left 7.77 |1.4 inches

 (197 +/- 35 mm) (5.68 |1.00 degrees). 2) Slowly release the captain's left rudder pedal.

 (b)  
Move the captain's right pedal to its full forward position and do this check: 1) Make sure the rudder moves to its right 7.77 |1.4 inches

 (197 +/- 35 mm) (5.68 |1.00 degrees).

 (c)  
Slowly release the captain's right rudder pedal.

 S 225-212
 (5)  
Increase the pitot-static pressure to 410 |1 knots (impact pressure approximately 8.849 inches of mercury (299.6 millibar)) (AMM 34-11-00/201) and do these steps:

 (a)  
Move the captain's left pedal to its full forward position and do this check: 1) Make sure the rudder moves to its left 4.79 |0.96 inches

 (121.6 +/- 24.3 mm) (3.50 |0.70 degrees). 2) Slowly release the captain's left rudder pedal.
 (b)  Move the captain's right pedal to its full forward position and do this check: 1) Make sure the rudder moves to its right 4.79 |0.96 inches
 (121.6 +/- 24.0 mm) (3.50 |0.70 degrees). 2) Slowly release the captain's right rudder pedal.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-21-00
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A
757 MAINTENANCE MANUAL
 S 865-213
 (6)  
Reduce the pitot-static pressure to an airspeed of zero knots (AMM 34-11-00/201).

 S 865-214

 (7)  
Remove the pitot-static pressure/air speed indication
 (AMM 34-11-00/201).
　
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