76-12-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(b) Disconnect the applicable connector plug and do a check of the applicable switch for continuity as follows: 1) Put a 0.032 inch diameter wire between the stop pin and the
hole in the trigger (Fig. 402, View C, step 1).
2) Push the go-around lever on the No. 3 thrust lever down until it pushes on the wire and hold it in position. a) For switch S2, do a check for continuity between pins 4
and 5 of the connector plug, P14. b) For switch S4, do a check for continuity between pins 1 and 3 of the connector plug, P21. c) For switch S6, do a check for continuity between pins 1 and 3 of the connector, P22. d) Remove the wire.
(c)
If there is no continuity, loosen the screws that attach the switch to the thrust lever.
(d)
Move the switch away from the lever and tighten the screws.
(e)
If you moved the switch, do this alternate procedure again: Adjust the applicable go-around switches (S2, S4 or S6).
(f)
If there is no continuity again, bend the switch roller lever no more than 0.06 inch (1.5 mm).
(g)
If you bent the switch, do this alternate procedure again: Adjust the applicable go-around switches (S2, S4 or S6).
(h)
Put a 0.015 inch diameter wire between the stop pin and the hole in the trigger (Fig. 402, View C, step 2).
(i)
Push the go-around lever on the No. 3 thrust lever down until it pushes on the wire and hold it in position. 1) For switch S2, make sure that there is no continuity
between pin 4 and pin 5 of connector P14. 2) For switch S4, make sure that there is no continuity between pin 1 and pin 3 of connector P21. 3) For switch S6, make sure that there is no continuity between pin 1 and pin 3 of connector P22. 4) Remove the wire.
(j)
If there is continuity, bend the switch roller lever no more than 0.06 inch (1.5 mm).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
(k)
If you bent the switch, do this alternate procedure again: Adjust the applicable go-around switches (S2, S4 or S6).
(l)
Move the 0.015 inch diameter wire to the opposite side of the stop pin and hold it in position (Fig. 402, View C, step 3).
(m)
Push the go-around lever on the No. 3 thrust lever all the way down then release it and let it to go back to the wire.
(n)
Do the continuity test of the switch again. 1) For switch S2, do a check for continuity between pins 4 and 5 of the connector plug, P14. 2) For switch S4, do a check for continuity between pins 1 and 3 of the connector plug, P21. 3) For switch S6, do a check for continuity between pins 1 and
3 of the connector, P22.
4) Remove the wire.
(o)
If there is no continuity again, bend the switch roller lever no more than 0.06 inch (1.5 mm).
(p)
If you bent the switch, do this alternate procedure again: Adjust the applicable go-around switches (S2, S4 or S6), but do not bend the switches again.
(q)
Install the applicable connector plugs, P14, P21 or P22, below the control stand.
S 414-063-N00
(9)
Install the ceiling panels in the main passenger cabin (AMM 25-22-01/401).
S 414-046-N00
(10)
Do this task: Install the Thrust Lever Assembly Switch Covers (AMM 76-11-03/201).
S 444-047-N00
(11)
Do this task: Activate the Autothrottle Servomotor (AMM 76-11-03/201).
S 864-049-N00
(12)
Do this task: Supply the electrical power to the thrust lever switches (AMM 76-11-03/201).
