S 864-020
(2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:
(a)
11H17, FLT CONT SHUTOFF TAIL LEFT
(b)
11H18, FLT CONT SHUTOFF TAIL CTR
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MAINTENANCE MANUAL
(c) 11H28, FLT CONT SHUTOFF TAIL RIGHT
(3) S 864-021Remove the DO-NOT-OPERATE tags and move the FLT CONTROL SHUTOFF L, R, and C switches on the right side panel, P61, to ON.
(4) S 864-022Make sure these circuit breakers on the P11 panel are closed: (a) EICAS (6 locations)
(5) S 824-023Push the STATUS switch on the display select panel, P9, to show the rudder position indicator on the bottom EICAS display.
(6) S 864-041Operate the rudder trim knob on the aft electronic control panel, P8, until the rudder trailing edge aligns with the neutral mark on the index plate (use a tolerance of +/- 0.20 inch (5.1 mm)). Do this check: (a) Make sure you can easily install and remove rig pin R3 in the feel, centering, and trim mechanism.
(7) S 864-044Put tape on the index plate and make a mark for the position of the rudder trailing edge.
(8) S 214-045Move one of the rudder ratio changer module (RRCM) test switches to TEST and do these steps: (a) Stop for 20 seconds, then make a mark for the rudder position on the tape. (b) Make sure the mark is not more than 0.05 inch (1.3 mm) away from the first mark.
S 214-042
CAUTION:_______MAKE SURE THE RRCM TEST SWITCH IS IN THE NORMAL POSITION. IF THE TEST SWITCH IS IN THE TEST POSTION, THE AMBER RUDDER RATIO LIGHT WILL COME ON. IF THIS LIGHT IS ON, YOU CANNOT DISPATCH THE AIRPLANE.
(9) Make sure the RRCM TEST switches are in the NORMAL position.
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S 824-046
(10)
If it is necessary, adjust the rudder trim indicator
(Ref 27-21-00/501).
S 214-025
(11)
Move the rudder pedals through their full travel range and do these checks:
(a)
Make sure the rudder operates correctly and smoothly through its full travel range.
(b)
Make sure the rudder position indicator operates correctly.
S 724-026
(12)
Do the operational test for the yaw damper system
(Ref 22-21-00/501).
F.
Put the Airplane Back to Its Usual Condition
S 494-004
WARNING: STAY AWAY FROM THE NOSE WHEELS WHEN THE LOCKPIN IS REMOVED.
_______ THE WHEELS WILL TURN TO THE CENTER POSITION QUICKLY, AND CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
Make sure the nose wheels are in their center positions and remove the towing lever lockpin from the nose gear (Fig. 403).
S 414-027
(2)
Close access panels 324AL, 324BL, and 324CL (Ref 06-42-00/201).
S 864-028
(3)
Remove the power from the left, right, and center hydraulic systems (Ref 29-11-00/201).
(4)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
S 864-002
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27-21-17 中國航空網(wǎng) www.k6050.com 航空翻譯 www.aviation.cn 本文鏈接地址：757 AMM 飛機(jī)維護(hù)手冊(cè) 飛行操縱 FLIGHT CONTROLS 2(71)
