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757 MAINTENANCE MANUAL
(b)
11C12, STAB TRIM SHUTOFF LEFT
(c)
11C13, STAB TRIM SHUTOFF RIGHT
(d)
11H11 or 11C05, STAB TRIM CONT L
(e)
11H17, FLT CONT SHUTOFF TAIL LEFT
(f)
11H18, FLT CONT SHUTOFF TAIL CTR
(g)
11H20, STAB TRIM CONT R
(h)
11H28, FLT CONT SHUTOFF TAIL RIGHT
S 865-084
(3)
Put the L, R, and C FLT CONTROL SHUTOFF switches on the P1 panel to the ON position.
S 865-085
(4)
Put the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the P10 panel to the NORM position.
S 415-086
(5)
Close the access door for the forward compartment, 113AL (AMM 06-41-00/201).
S 415-087
(6)
Close the access doors for the forward and aft stabilizer compartment, 311AL, 313AL (AMM 06-42-00/201).
S 415-088
(7)
Install the access panels, 335BB, 335DB, 345BB, and 345DB, for the power control actuator and position transmitter (AMM 06-42-00/201).
S 865-089
(8)
Remove electrical power (AMM 24-22-00/201).
TASK 27-31-00-725-090
4. Elevator Control System - System Test_____________________________________
A. General
(1)
This task contains the system test procedure for the elevator Control System, which contains these topics:
(a)
Control Column Travel
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757 MAINTENANCE MANUAL
(b)
Column Breakout Force
(c)
Elevator Column and Quadrant Override
(d)
Elevator Travel Limits
(e)
Elevator Asymmetry Limits
(f)
Elevator Asymmetry Limiting System EICAS Messages
(g)
Elevator Feel System EICAS Messages
(h)
Elevator Feel System Forces
(i)
Neutral Shift
(j)
Feel Unit Override
(k)
Autopilot Hardover
(l)
MCDP Ground Test 08-SERVO ELEV (AMM 22-00-02/201)
(m)
Elevator Pressure Reducer
(n)
Elevator PCU Monitor System
(o)
Elevator Pressure Bypass Valve (Procedure 1 and 2)
(p)
Elevator Position Indicating System (AMM 27-38-00/501)
(2)
If it is necessary to make sure the complete elevator control system operates correctly, it is necessary to do all the test topics in this task.
B.
Equipment
(1)
Breakout Box - Position Sensors, Flight
Controls Rigging - A27063-88
(a)
Breakout box - A27063-2
(b)
Cable assembly - A27063-29
(2)
Power Supply - Powertron Model 5900
Industrial Test Equip Corp.
Port Washington, New York
(3)
Force Gage - DPPH-100
Chatillon Inc.
83-30 Kew Garden Rd.
Kew Gardens, New York 11415
(4)
Control Wheel Protractor Kit - A27021-29
(5)
Control Column Lock Equipment - A27021-69
(6)
Control Wheel Adapter Equipment -A27021-97 or -98
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C.
D.
E.
A
757
MAINTENANCE MANUAL
(7)
Scale (linear measurements for the stabilizer ballscrew) - B27039-1
(8)
Rigging Blocks, Elevator Aft Quadrant
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