TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 208 of 1176
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. BATTERIES
NOT CHARGING
PROPERLY
NOTE
If STE/ICE-R is available, perform
NG 50 Charging Circuit Tests
(WP 0018 00).
Test 1. Check for loose or missing
alternator belts (WP 0084 00).
NOTE
Battery voltmeter located on
instrument panel is not always
accurate and should not be used to
adjust voltage. Indicator needle in
voltmeter located on instrument
panel should cover the white dot at
edge of green area when battery
voltage is 28.0.
Test 2. Test battery voltage.
1. Adjust loose belts (WP 0084 00).
2. Replace broken or missing belts
(WP 0084 00).
If voltage across batteries cannot be
adjusted to 28.0 ± 0.2 VDC, go to
WP 0012 00, table 3, malfunction 1,
test 2.
3. BATTERIES HOT
OR BOILING,
CORRECTED SPECIFIC
GRAVITY OF ALL
CELLS IS 1.280
NOTE
If STE/ICE-R is available, perform
NG 50 Charging Circuit Tests
(WP 0018 00).
Test charging voltage of batteries
(WP 0012 00, table 2, malfunction 2,
test 2).
Replace defective batteries as
necessary (WP 0127 00).
4. BATTERIES USE
EXCESSIVE WATER
NOTE
If STE/ICE-R is available, perform
NG 50 Charging Circuit Tests
(WP 0018 00).
Test charging voltage of batteries
(WP 0012 00, table 2, malfunction 2,
test 2).
Replace defective batteries as
necessary (WP 0127 00).
5. BATTERIES RUN
DOWN IN
OPERATION
NOTE
If STE/ICE-R is available, perform
NG 50 Charging Circuit Tests
(WP 0018 00).
Test 1. Check for loose or missing
alternator belts.
Test 2. Test charging voltage
(WP 0012 00, table 2,
malfunction 2, test 2).
1. Adjust loose belts (WP 0084 00).
2. Replace missing belts
(WP 0084 00).
If proper voltage is indicated, problem
is not in charging system. Refer to
WP 0012 00, table 1, malfunction 1,
step 1.
TM 9-2320-361-24-1
0012 00
0012 00-24
BATTERY AND CHARGING SYSTEM TROUBLESHOOTING (Contd)
Table 3. Charging System (60 Amp) Troubleshooting Procedure (Contd).
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