ILF 562, 588, 592-596, 686, 833, 834, 854-856, 861-863, 871-874
SUBTASK 24-31-11-860-036-001
(7) Do this task: Supply External Power, TASK 24-22-00-860-813.
SUBTASK 24-31-11-860-037-001
(8) Make sure the STANDBY POWER switch on the P5-5 panel is in the AUTO position.
SUBTASK 24-31-11-210-002-001
(9) Make sure the ELEC light on the P5-13 panel is off.
(a) To clear ELEC light messages, do this task: FIM 24-31 TASK 801.
SUBTASK 24-31-11-710-007-001
(10) Test the battery per the steps that follow:
(a) Set the GRD PWR switch on the P5-4 panel to the OFF position.
(b) Make sure the BAT switch on the P5-13 panel is set to the ON position.
(c) Set the DC meter selector switch on the P5-13 panel to the BAT position.
(d) Make sure the DC meter on the P5-13 panel shows these values:
1) DC VOLTS = 22-28
2) DC AMPS = a negative value
NOTE: The battery current is negative when the battery is discharging.
(e) Make sure the BAT DISCHARGE light on the P5-13 panel comes on. This light will come
on when any of these conditions are met:
1) The battery current is greater than 5 Amps for more than 95 seconds.
2) The battery current is greater than 15 Amps for more than 25 seconds.
3) The battery current is greater than 100 Amps for more than 1.2 seconds.
(f) Set the GRD PWR switch to the ON position.
(g) Make sure the DC AMPS value goes to 45 ±10 AMPS and then goes down to less than 5
AMPS within 180 minutes.
NOTE: 180 minutes is the maximum. It can take less time depending the state of the
battery.
(h) Make sure the DC VOLTS value goes to 30 ±3 VOLTS.
(i) Make sure the BAT DISCHARGE light goes off.
ILF 562, 588, 592-596, 686, 707-710, 833, 834, 854-856, 861-863, 871-874
SUBTASK 24-31-11-860-038-001
(11) Check the clock GMT and date.
ILF 707-710
SUBTASK 24-31-11-210-008
(12) Make sure the ELEC light on the P5-13 panel is off.
(a) To clear ELEC light messages, do this task: FIM 24-31 TASK 801.
ILF 562, 588, 592-596, 686, 833, 834, 854-856, 861-863, 871-874
SUBTASK 24-31-11-860-039-001
(13) Get access to the main equipment center. Make sure the BATTERY and CHARGER lights on
the front of the battery charger are on.
ILF 562, 588, 592-596, 686, 707-710, 833, 834, 854-856, 861-863, 871-874
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-31-11
Config 1
Page 411
D633A101-ILF Jun 15/2019
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
ILF 562, 588, 592-596, 686, 707-710, 833, 834,
854-856, 861-863, 871-874
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