S 035-019-N00
(21)
Disconnect the pulse generator, multimeter, counter, and API.
S 435-020-N00
(22)
Connect the electrical connectors for the Channel A as follows:
(a)
P1 of T1742 for the position resolver of the No. 1 thrust lever
(b)
P1 of T1743 for the position resolver of the No. 2 thrust lever
(c)
P1 of T1744 for the position resolver of the No. 3 thrust lever
(d)
P1 of T1745 for the position resolver of the No. 4 thrust lever
S 035-021-N00
(23) Disconnect the electrical connectors for the Channel B as follows:
(a)
P2 of T1742 for the position resolver of the No. 1 thrust lever
(b)
P2 of T1743 for the position resolver of the No. 2 thrust lever
(c)
P2 of T1744 for the position resolver of the No. 3 thrust lever
(d)
P2 of T1745 for the position resolver of the No. 4 thrust lever
S 485-022-N00
(24) Connect the pulse generator, multimeter, counter, and angle position indicator (API) to the electrical connector of the Channel B of each resolver for each of the adjustments that follow (Fig. 502).
(a)
For the position resolver of the No. 1 thrust lever, the connection will be made at P2 of the connector T1742.
(b)
For the position resolver of the No. 2 thrust lever, the connection will be made at P2 of the connector T1743.
(c)
For the position resolver of the No. 3 thrust lever, the connection will be made at P2 of the connector T1744.
(d)
For the position resolver of the No. 4 thrust lever, the connection will be made at P2 of the connector T1745.
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
76-11-02
ALL ú ú N02 Page 507 ú Jun 18/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 825-023-N00
(25) Set the output voltage and frequency of the pulse generator as follows:
(a)
7.00 |0.07 volts RMS
(b)
3.15 |0.03 kHz
S 825-024-N00
(26)
For the position resolvers of the No. 1 and 2 thrust levers, make a record of the API display value.
S 825-025-N00
(27)
For the position resolvers of the No. 3 and 4 thrust levers, do the steps that follow:
(a)
Subtract the API display value from 90 degrees.
(b)
Make a record of the adjusted value.
S 825-026-N00
(28)
With a record of the API display values for the Channel A and the Channel B for all four position resolvers, subtract the Channel B value from the Channel A value for each position resolver.
S 825-027-N00
(29)
Make sure the difference between each Channel A value and Channel B value is not more than 0.31 degree for each position resolver.
S 035-028-N00
(30)
Disconnect the pulse generator, multimeter, counter, and API.
S 435-029-N00
(31)
Connect the electrical connectors for the Channel B as follows:
(a)
P2 of T1742 for the position resolver of the No. 1 thrust lever
(b)
P2 of T1743 for the position resolver of the No. 2 thrust lever
(c)
P2 of T1744 for the position resolver of the No. 3 thrust lever
(d)
P2 of T1745 for the position resolver of the No. 4 thrust lever
(e)
Remove the rig pins and the 10-pound weight.
G.
Do the Test Procedure
S 035-030-N00
(1) Disconnect the electrical connectors for the Channel A as follows:
(a)
P1 of T1742 for the position resolver of the No. 1 thrust lever
(b)
P1 of T1743 for the position resolver of the No. 2 thrust lever
(c)
P1 of T1744 for the position resolver of the No. 3 thrust lever
(d)
P1 of T1745 for the position resolver of the No. 4 thrust lever
S 485-031-N00
(2) Connect the pulse generator, multimeter, counter, and API to the electrical connector for the Channel A of each position resolver for each of the checks that follow (Fig. 502).
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本文链接地址：747-400 AMM 飞机维护手册 发动机控制 ENGINE CONTROLS(17)
