SUBTASK 24-31-31-860-002
CAUTION
DO NOT DISCONNECT THE BATTERY CHARGER BEFORE YOU OPEN THE
CIRCUIT BREAKERS. WITH THE BATTERY SWITCH IN THE OFF POSITION,
THE BATTERY WILL CONTINUE TO ENERGIZE THE POSITIVE TERMINAL
OF THE BATTERY CHARGER. IF YOU DISCONNECT THE BATTERY
CHARGER BEFORE YOU OPEN THE CIRCUIT BREAKERS, YOU CAN
CAUSE DAMAGE TO THE BATTERY CHARGER.
(4) Open these circuit breakers and install safety tags:
Battery Shield, J9
Row Col Number Name
A 3 C01209 AUX BAT CHARGER
Power Distribution Panel Number 1, P91
Row Col Number Name
E 3 C00922 AUX BAT CHGR
G. Auxiliary Battery Charger Removal
SUBTASK 24-31-31-910-001
CAUTION
DO NOT TOUCH THE AUXILIARY BATTERY CHARGER BEFORE YOU DO
THE PROCEDURE FOR DEVICES THAT ARE SENSITIVE TO
ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE
DAMAGE TO THE BATTERY CHARGER.
(1) Before you touch the auxiliary battery charger [1], do this task: ESDS Handling for Metal
Encased Unit Removal, TASK 20-40-12-000-802.
SUBTASK 24-31-31-020-001
(2) Remove the auxiliary battery charger [1] per the steps that follow:
(a) Remove the electrical connector from the front of the battery charger.
(b) Remove the screw [9] and washer [8] from the terminal block cover [10].
(c) Remove the terminal block cover [10] from the front of the battery charger.
(d) Remove the nut [2], lockwasher [3] and washer [4] from the terminal stud.
(e) Remove the nut [7], lockwasher [6] and washer [5] from the terminal stud.
(f) Remove the wires from the terminals.
(g) To remove the auxiliary battery charger, do this task: E/E Box Removal,
TASK 20-10-07-000-801.
END OF TASK
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-31
Page 403
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
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