E. Access Panels
Number Name/Location
117A Electronic Equipment Access Door
F. Procedure
SUBTASK 24-31-41-420-001
(1) Do these steps to install the Dual Battery RCCB [1]:
(a) Hold the Dual Battery RCCB [1] in position.
(b) Install the two screws [5] that hold the Dual Battery RCCB [1].
(c) Install the wires on the terminal studs.
(d) Install the two nuts [2], lockwashers [3] and washers [4] on both terminal studs on the
Dual Battery RCCB [1].
(e) Install the nut [2], lockwasher [3] and washer [4] on the top terminal stud on the Static
Inverter RCCB.
(f) Tighten the nuts [2] to 43 ±2 in-lb (5 ±0 N·m).
(g) Install the control wires into sockets on the Dual Battery RCCB [1] per the identification
tags (SWPM 20-83-00).
(h) Install the access cover on top of the J9 shield.
SUBTASK 24-31-41-420-002
(2) Re-connect the battery connector to the main battery per the steps that follow:
NOTE: Do not connect the battery connector to the auxiliary battery until after the check of the
dual battery RCCB is complete.
(a) Gain access to the forward cargo area.
(b) Re-connect the battery connector to the main battery.
(c) Remove the safety tags and close these circuit breakers:
Battery Shield, J9
Row Col Number Name
A 4 C00142 BATTERY CHARGER
A 5 C01340 BATTERY BUS
NOTE: Do not close the AUX BATTERY CHARGER circuit breaker until after the check
of the dual battery RCCB is complete.
G. Dual Battery RCCB Installation Test
SUBTASK 24-31-41-710-003
(1) Do a check of the Dual Battery RCCB [1] per the steps that follow:
(a) Do this task: Supply External Power, TASK 24-22-00-860-813.
(b) Set the DC Meter Selector Switch on the P5-13 panel to the AUX BAT position.
(c) Set the BAT switch on the P5-13 panel to the ON position.
(d) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 0
(e) Set the STANDBY POWER switch on the P5-5 panel to the BAT position.
(f) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 22-28
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-41
Page 410
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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