G.
Rudder Pedals and Jackshafts - Adjustment (Fig. 505)

 S 825-082
 (1)  
Do these steps to set the rudder pedals for adjustment:

 (a)  
Turn the captain's pedal adjustment crank clockwise until the jackshaft is in its full forward pedal position. Then turn it counterclockwise 3.6 turns and put it in its nearest detent position.

 (b)  
Do the above step again for the first officer's pedals.

 S 015-083
 (2)  
Remove the rudder pedal housing covers (Fig. 505).

 S 035-084

 (3)  
Disconnect the rudder pedal pushrods from the captain's and the first officer's rudder pedal arms.

 S 495-085

 (4)  
Operate the rudder trim switch if it is necessary and install these rig pins:

 (a)  
R2 (for the left forward quadrant)

 (b)  
R3 (for the aft quadrant)

 S 825-086
 (5)  
Do these steps to adjust the captain's pedals and jackshaft:

 (a)  
Install rig pin R1A for the captain's rudder pedal arms or R1B for the first officer's rudder pedal arms (Fig. 505).

 (b)  
Loosen the jamnuts for the rudder pedal pushrods.

 (c)  
Adjust the pushrods until the bolts that connect the pushrods to the pedal arms can be easily installed.

 (d)  
Connect the pushrods to the rudder pedal arms, and tighten the jamnuts.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-21-00
 ALL  ú ú 06 Page 530 ú Jan 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

757 MAINTENANCE MANUAL
 (e)  Remove rig pin R1A or R1B.
 S 825-087
 (6)  
Do the above steps on the first officer's side to adjust the first officer's rudder pedals and jackshaft.

 S 095-088

 (7)  
Remove rig pins R2 and R3.

 S 415-089

 (8)  
Install the rudder pedal housing covers.

 S 225-308

 (9)  
Operate the rudder pedals and make sure the forward quadrant touches its stops in each direction.

 NOTE: Use sufficient force on the rudder pedals to stretch the
____ control cables. This will let the forward quadrant touch its stops.
 H. Rudder Ratio Changer Actuator (RRCA) - Oscillation Check
 S 495-400
 (1) Install rig pin R3 (for the feel, centering, and trim mechanism).
 S 865-401
 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.
 (2)
Supply pressure to the left hydraulic system (AMM 29-11-00/201).

 S 865-405

 (3)  
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel:

 (a)  
11H17, FLT CONT SHUTOFF TAIL LEFT

 S 865-404
 (4)  Remove the DO-NOT-OPERATE tag and move the FLT CONTROL SHUTOFF switch L on the P61 panel to ON.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-21-00
 ALL  ú ú 12 Page 531 ú Sep 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 
757 
MAINTENANCE MANUAL
 S 865-403
 (5) Move the left RRCM test switch on the E3 equipment shelf 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.
 (c) Observe the RRCA and Rudder Ratio Changer Output Arms for
 oscillations. If any oscillations are noted, troubleshoot and
 correct the oscillation before you complete this procedure.
 S 095-614
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 飛行操縱 FLIGHT CONTROLS 2(5)