RIGID BUS ASSEMBLY - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of the rigid bus assembly.
(2) An installation of the rigid bus assembly.
TASK 24-21-22-000-801
2. Rigid Bus Assembly Removal
(Figure 401)
A. General
(1) There is one rigid bus assembly located at the rear of each of the power distribution panels
(PDP), P91 and P92.
NOTE: If the troubleshooting points to a defective current transformer, the airline must remove
and send back the rigid bus assembly to Honeywell. Write or speak to Honeywell for
more data.
(2) It is necessary to get access to the front and the rear of the power distribution panels to
remove and install the Rigid Bus Assembly [1].
(3) You get access to the front of the PDP from the electronic equipment area.
(4) You get access to the rear of the PDP from the forward cargo area.
B. References
Reference Title
24-21-41-000-801 Breaker Removal (P/B 401)
24-22-00-860-812 Remove Electrical Power (P/B 201)
24-41-12-000-801 External Power Contactor Removal (P/B 401)
C. Location Zones
Zone Area
117 Electrical and Electronics Compartment - Left
118 Electrical and Electronics Compartment - Right
121 Forward Cargo Compartment - Left
122 Forward Cargo Compartment - Right
D. Access Panels
Number Name/Location
117A Electronic Equipment Access Door
E. Prepare for removal.
SUBTASK 24-21-22-860-001
WARNING
REMOVE ELECTRICAL POWER BEFORE REMOVING OR INSTALLING RIGID
BUS ASSEMBLY. HIGH VOLTAGES PRESENT CAN CAUSE INJURY TO
PERSONS.
(1) Do this task: Remove Electrical Power, TASK 24-22-00-860-812.
(a) Make sure that all of the power warning lights on the power distribution panel are off.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-21-22
Page 401
D633A101-ILF Oct 15/2018
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF ALL
To Next Page
Loading...
