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27-11-00
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 825-020
(13)
Move the control wheel to its neutral position.
S 865-021
(14)
Supply pressure to the left and center hydraulic systems
(Ref. 29-11-00).
G.
Aileron Trim Control Test
S 215-022
(1)
Move the aileron trim switches on the aft electronic-control panel, P8, to RIGHT WING DOWN. Hold the switches in this position until the control wheel movement stops and do the checks that follow:
(a)
Make sure that the control wheels turn clockwise approximately 30 degrees from the neutral position.
S 215-023
(2)
Move the aileron trim switches to LEFT WING DOWN. Hold the switches in this position until the control wheel movement stops and do the checks that follow:
(a)
Make sure that the control wheels turn counterclockwise 30 +/- 2 degrees from the neutral position.
S 825-024
(3) Move the aileron trim switches to their neutral position.
NOTE: It might be necessary to rotate the control wheel in the
____ left and right directions in decreasing amounts until the neutral position can be determined by feel.
H. Aileron Bus Force Limiter and the Aileron (Lateral) Control Override Mechanism - Test
S 825-025
(1)
Hold the captain's control wheel in its neutral position.
S 215-026
(2)
Turn the first-officer's control wheel fully clockwise, then counterclockwise, and release.
(a)
Do these checks: 1) Make sure the right aileron operates when you turn the control wheel.
2) Make sure the control wheel moves smoothly and does not need too much force.
S 825-028
(3) Hold the first officer's control wheel in its neutral position.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-11-00
ALL ú ú 01 Page 504 ú Sep 28/00
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A
757 MAINTENANCE MANUAL
S 215-027
(4)
Turn the captain's control wheel fully clockwise, then
counterclockwise, and release.
(a)
Do these checks: 1) Make sure the left aileron operates when you turn the control wheel.
2) Make sure the control wheel moves smoothly and does not need too much force.
I. Put the Airplane Back to Its Usual Condition
S 865-029
(1) Remove electrical power if it is not necessary (Ref 24-22-00/201).
(EXAMPLE 2 LOCATIONS)
AILERON CONTROL DRUMS AND BUS FORCE LIMITER (AFT VIEW)
Aileron Control-Drum Adjustment
Figure 501
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
27-11-00
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757 MAINTENANCE MANUAL
TASK 27-11-00-825-030
3. Adjust the Aileron and Aileron Trim Control System__________________________________________________
A. General
(1)
SYSTEM ADJUSTMENT SEQUENCE . This task adjusts the aileron control system and its components in the sequence that follows. This sequence is recommended for a complete system adjustment:
~...................................................................... | ADJUSTMENT | COMPONENT/MECHANISM | ........................................................................ | G | Control Wheel | ........................................................................ | H | Aileron Body Cable | ........................................................................ | I | Left Wing Cables | ........................................................................ | J | Right Wing Cables | ........................................................................ | K | Aileron PCU | 2..................…...................................................1 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：757 AMM 飞机维护手册 飞行操纵 FLIGHT CONTROLS 1(65)
