B. Procedure
SUBTASK 24-22-00-860-023
(1) Do the applicable task(s) to remove electrical power from the airplane:
(a) Do this task: Remove External Power, TASK 24-22-00-860-814.
(b) Do this task: Remove APU Generator Power, TASK 24-22-00-860-816.
(c) Do this task: Remove IDG Power, TASK 24-22-00-860-818.
END OF TASK
TASK 24-22-00-860-813
4. Supply External Power
(Figure 201, Figure 202)
A. General
(1) This task has these procedures:
(a) Supply external power to the ground service buses
(b) Supply external power to the 115V AC transfer buses
(2) Use the applicable procedure to energize the necessary buses.
B. References
Reference Title
20-40-11-910-801 Static Grounding (P/B 201)
C. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
D. Procedure
SUBTASK 24-22-00-860-004
(1) Do these steps to supply external power to the ground service buses:
(a) Open the External Power Receptacle Door.
WARNING
IF THE EXTERNAL POWER SUPPLY HAS AN EARTH GROUNDED
NEUTRAL, THERE MUST NOT BE AN OPEN OR FLOATING GROUND IN
THE NEUTRAL CIRCUIT WIRING OF THE SUPPLY OR THE AIRPLANE.
IF AN OPEN OR FLOATING GROUND IS PRESENT, THE AIRPLANE CAN
BE PUT AT AN ELECTRICAL POTENTIAL ABOVE EARTH GROUND. THIS
ELECTRICAL POTENTIAL CAN CAUSE ELECTRIC SHOCK WITH
POSSIBLE SEVERE INJURY TO PERSONNEL WHO TOUCH THE
AIRPLANE.
(b) Make sure the external power supply operates correctly before you supply external power
to the airplane.
1) If the ground return (neutral) circuit on the external power supply or the external
power receptacle do not operate correctly, do this task: Static Grounding,
TASK 20-40-11-910-801.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-22-00
Page 202
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
