E. Access Panels
Number Name/Location
114AR External Power Receptacle Door
117A Electronic Equipment Access Door
F. Prepare for installation.
SUBTASK 24-41-12-860-002
WARNING
REMOVE ELECTRICAL POWER BEFORE REMOVING OR INSTALLING
CONTROL BREAKERS IN POWER DISTRIBUTION PANELS. HIGH
VOLTAGES COULD BE FATAL.
(1) Make sure that electrical power is removed from airplane.
(a) Make sure that all of the power warning lights on the P92 panel are off.
G. Procedure
SUBTASK 24-41-12-420-001
(1) Do these steps to install the external power contactor [1]:
(a) Hold contactor [1] in place and install the six bolts [2] and washers [3].
(b) Tighten the bolts to 48 ±4 in-lb (5 ±1 N·m).
(c) Install the electrical connector on the contactor [1] and tighten the two screws on the
connector.
(d) Close the access door on P92 panel.
SUBTASK 24-41-12-010-001
(2) Remove the DO-NOT-OPERATE tag from External Power Receptacle and close this access
panel:
Number Name/Location
114AR External Power Receptacle Door
H. The Installation Test of the External Power Contactor
SUBTASK 24-41-12-700-001
(1) Do a check of the External Power Contactor as follows:
(a) Connect an external power source to the external power receptacle on the P19 panel.
(b) Make sure the EXTERNAL POWER CONNECTED and the NOT IN USE lights on the
P19 panel come on.
(c) Make sure the BAT switch on the P5-13 panel is in the ON position.
(d) Make sure the GND POWER AVAILABLE light on the P5-4 panel is ON.
(e) Set the GRD PWR switch on the P5-4 panel to the ON position.
(f) Make sure the GND POWER AVAILABLE light remains on and that both TRANSFER
BUS OFF lights on the P5-4 panel go off.
I. Put the Airplane Back to its Usual Condition.
SUBTASK 24-41-12-410-001
(1) Close this access panel:
Number Name/Location
117A Electronic Equipment Access Door
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-41-12
Page 407
D633A101-ILF Jun 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
