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Page Title: Table 4. Charging System (100 Amp) Troubleshooting Procedure - continued
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TM 9-2320-361-24-1
0012 00
BATTERY AND CHARGING SYSTEM TROUBLESHOOTING (Contd)
Table 4. Charging System (100 Amp) Troubleshooting Procedure (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 2. Test charging system output
voltage.
OUTPUT
NOTE
Voltage regulators in both the 100 amp
and 60 amp charging systems regulate
battery voltage to 28.0 0.2 VDC.
The 100 amp voltage regulator is
separate from the 100 amp alternator.
Battery voltage fluctuations are not to
go above 28.5 VDC or below 27.5 VDC
as headlights are turned on, off, and on
with engine running at 1200 RPM.
For test purposes only, charging voltage
across batteries can be varied between
26.0 and 30. 0 VDC with engine
running at 1200 RPM and headlights
off.
1. Turn off engine.
2. Open door of battery
compartment. Loosen two
thumbscrews and slide batteries
onto running board (WP 0127 00).
3. Use multimeter to check battery
for voltage.
4. Start engine (TM 9-2320-361-10).
5. Set engine speed at 1200 RPM.
6. Turn on vehicle headlights and
accessories.
BATTERIES
~
~
TEST 2
RUNNING
BOARD
THUMBSCREWS
STEP 7
0012 00-26

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