S 824-012-N00
(3)
Do this task: Calibrate the Thrust Lever Position Resolver
(AMM 76-11-02/501).
S 434-013-N00
(4)
Tighten the two clamping screws in the support bracket to hold the resolver in the correct position.
S 434-014-N00
(5)
Remove the protection caps and connect these electrical connectors:
(a)
T1742 for resolver No. 1
(b)
T1743 for resolver No. 2
(c)
T1744 for resolver No. 3
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(d) T1745 for resolver No. 4
S 434-015-N00
(6) Install the clamps on the electrical cable and the wire bundle.
D. Put the Airplane Back to Its Usual Condition.
S 414-016-N00
(1)
Install the ceiling panels (AMM 25-22-01/401).
S 444-017-N00
(2)
Do this task: Activate the Autothrottle Servomotor
(AMM 76-11-03/201).
S 444-019-N00
(3)
Do this task: Energize the Thrust Lever Position Resolver (AMM 76-11-03/201).
S 444-021-N00
(4)
Do this task: Energize the Captain and First Officer seats (AMM 76-11-03/201).
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THRUST LEVER POSITION RESOLVER - ADJUSTMENT/TEST
________________________________________________
1. General
_______
A. The position resolver for the thrust lever, installed below the control stand assembly, is a mechanical-electrical transducer which changes the mechanical input from the thrust lever into an electrical output. This is done when an electrical signal received from the electronic engine control (EEC) is changed in phase by a quantity in relation to the thrust lever and position resolver. This signal is then sent back to the EEC as an input to put the fuel metering valve on the FMU to its correct position.
B. Use this procedure to correctly calibrate the position resolver.
C. You must operate all electrical equipment a minimum of 10 minutes before
you use it to let the temperature become stable.
D. You can use the alternative adjustment procedure of the position resolver if you do not have the sinewave generator, digital multimeter, universal counter, or angle position indicator. But, the recommended adjustment procedure of the position resolver is to use the external equipment on the airplane. It is less possible that an error will occur when you use the external equipment and not the airplane EICAS screen.
TASK 76-11-02-825-001-N00
2. Calibrate the Thrust Lever Position Resolver
____________________________________________
A. Special Tools and Equipment
(1)
G12001 Kit-Rig Pin
(a)
TL1, MS20392-4C or equivalent 0.309-0.311
inch (7.85-7.90 mm) diameter rod or bolt
by 12.0 inches (305 mm) in length.
(b)
TR1 and TR2, MS20392-3C or equivalent
0.246-0.248 inch (6.25-6.30 mm) diameter
rod or bolt by 3.5 inches (89 mm) in
length.
(2)
G76002-14 Protractor - Thrust Levers, Forward and Reverse
B. Standard Tools and Equipment
(1)
Sinewave Generator - Output Range 0-10 (|0.01) volts RMS,
Frequency Range 2.5-3.5 (|0.01) kHz,
commercially available
(2)
Digital Multimeter - Range 0-50 (|0.01) volts RMS; commercially available
(3)
Universal Counter - Range 2.5-3.5 (|0.01) kHz; commercially
available
(4)
Angle Position Indicator - 0.00 to 359.99 degrees(|0.05 degree), 360 Hz to 4.8 kHz; (North Atlantic 8810S3128 or equivalent)
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：747-400 AMM 飞机维护手册 发动机控制 ENGINE CONTROLS(14)
