ILF 493-500, 560, 561, 563, 564, 567-569, 581, 583, 585, 589, 590, 597-599, 601-603, 606, 607,
610-615, 620, 625-627, 671, 672, 691-699, 835, 838, 841, 842, 851, 852, 857, 858, 947, 948, 968-973,
980-999
(a) Remove the access cover on top of the J39 shield to get access to the circuit breakers.
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401, 402, 405, 406, 409,
410, 412, 416, 424, 425, 427-429, 451, 452, 491-504, 507-510, 512-516, 518-520, 523-528, 530-533,
535-537, 541, 542, 552-557, 559-561, 563, 564, 567-569, 571-577, 581, 583, 585, 589, 590, 597-599,
601-603, 606, 607, 610-615, 620, 625-627, 671, 672, 691-699, 703, 803-813, 821, 822, 831, 832,
835-838, 841, 842, 851, 852, 857, 858, 947, 948, 968-973, 980-999
(b) Open this circuit breaker and install safety tag:
Battery Shield, J9
Row Col Number Name
A 3 C01209 AUX BAT CHARGER
SUBTASK 24-31-41-020-003
(5) Disconnect the battery connector from the auxiliary battery per the steps that follow:
NOTE: Do not disconnect the battery connector from the main battery. The applicable
connector can be access through the Electrical and Electronics compartment (EE Bay)
or the forward cargo access panel.
(a) Gain access to the forward cargo area or the Electrical and Electronics compartment (EE
Bay).
1) If you access in the forward cargo area, then remove the access panel that covers
the batteries.
(b) Disconnect the battery connector from the auxiliary battery.
NOTE: Do not let the terminals on the connector rest against the airplane structure.
E. Operational Test
SUBTASK 24-31-41-710-002
(1) Do a check of the Dual Battery RCCB per the steps that follow:
(a) Set the DC Meter Selector Switch on the P5-13 panel to the AUX BAT position.
(b) Set the BAT switch on the P5-13 panel to the ON position.
(c) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 0
(d) Set the STANDBY POWER switch on the P5-5 panel to the BAT position.
(e) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 22-28
(f) Set the STANDBY POWER switch on the P5-5 panel to the AUTO position.
(g) Make sure the DC meter on the P5-13 panel shows this value:
1) DC VOLTS = 0
F. Put the Airplane Back to Its Usual Condition
SUBTASK 24-31-41-420-003
(1) Re-connect the battery connector to the auxiliary battery per the steps that follow:
(a) Gain access to the forward cargo area or the EE Bay.
(b) Re-connect the battery connector to the auxiliary battery.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-41
Page 502
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 101, 151, 156-199, 301, 304, 308, 310, 314, 315, 317-319, 323, 331-399, 401,
402, 405, 406, 409, 410, 412, 416, 424, 425, 427-429, 451, 452, 491-504, 507-510,
512-516, 518-520, 523-528, 530-533, 535-537, 541, 542, 552-557, 559-561, 563,
564, 567-569, 571-577, 581, 583, 585, 589, 590, 597-599, 601-603, 606, 607,
610-615, 620, 625-627, 671, 672, 691-699, 703, 803-813, 821, 822, 831, 832,
835-838, 841, 842, 851, 852, 857, 858, 947, 948, 968-973, 980-999
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