(a)  
Make sure the rudder goes back to its neutral position (use a tolerance of |0.15 inch (+/- 3.8 mm)).

 (b)  
Make sure the rudder position indicator moves to its center position (use the line width for tolerance).

 K.
First Officer's Rudder Pedal Forces - Test

 S 735-197
 (1)  
Do the "Captain's Rudder Pedal Force - Test" group of steps again for the first officer's rudder pedals.

 L.
Rudder Ratio Changer - Low Speed Retraction 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.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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MAINTENANCE MANUAL

 S 865-019

 WARNING:_______ KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
 HYDRAULIC POWER IS SUPPLIED.  AILERONS, ELEVATORS, RUDDER,
 FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED
 SURFACES.  INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR

 WHEN HYDRAULIC POWER IS SUPPLIED.
 (1)  
Supply pressure to the left, right, and center hydraulic systems (AMM 29-11-00/201).

 S 865-198

 (2)  
Move one of the two RRCM test switches to TEST and do these checks:

 NOTE: The amber RUDDER RATIO light on the P5 panel will come ON and
____ stay ON. An amber RUDDER RATIO message will come into view on EICAS when the RRCM test switch is in its TEST position.
 (a)  
Make sure the IN TEST light stays on for a maximum of 18 seconds.

 (b)  
After 30 seconds, make sure all the RRCM faultballs are black.

 S 825-199
 (3)  
Turn the rudder trim switch on the P8 panel, if necessary, to install the rig pin R3.

 S 975-200

 (4)  
Put tape on the tail cone index plate and make a mark of the rudder position (use the left side of the rudder trailing edge).

 S 225-201

 (5)  
Move the RRCM test switch to NORMAL and do these checks:

 (a)  
Make sure the IN TEST light stays on for a maximum of 18 seconds.

 (b)  
Make sure the rudder is no more than 0.05 inch (1.27 mm) away from the mark you made on the tape.

 (c)  
Remove the rig pin R3.

 S 215-202
 (6)  
Move the RRCM test switch to TEST and do these checks:

 (a)  
Make sure the IN TEST light stays no for a maximum of 18 seconds.

 (b)  
After 30 seconds, make sure all the RRCM fault balls are black.

 (c)  
Make sure the ratio changer actuator is fully extended.

 (7)  
Remove the power from the left hydraulic system (AMM 29-11-00/201).

 S 865-203
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A

757
MAINTENANCE MANUAL

 S 825-204
 (8)  
Push forward on both (upper portion) of the captain's or first officer's rudder/brake pedals repeately to bleed down the hydraulic pressure to less than 50 psi. Stop for 2.5 minutes.

 S 215-205

 (9)  
Move the captain's right pedal forward until the aft quadrant touches its full travel stop and do this check:

 (a)  
Make sure the rudder moves right at least 40 inches (1.01 m).

 S 215-206
 (10)
 Move the captain's left pedal forward until the aft quadrant touches its full travel stop and do this check:

 (a)  
Make sure the rudder moves left at least 40 inches (1.01 m).

 S 865-207
 (11)
 Move the captain's rudder pedals back to their neutral positions.

 S 865-413

 (12)
 Supply pressure to the left hydraulic systems (AMM 29-11-00/201).

 S 225-412
　
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