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 242 of 1176
TM 9-2320-361-24-1
0014 00
0014 00-6
INDICATORS, GAUGES, AND WARNING SYSTEM TROUBLESHOOTING (Contd)
Table 1. Indicator, Gauges, and Warning System Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. FUEL GAUGE
INOPERATIVE
WARNING
Do not perform testing near fuel tank
with fill cap or sending unit removed.
Fuel may ignite causing injury to
personnel.
NOTE
• Before performing test, ensure fuel
tank is full.
• IF STE/ICE-R is available, perform
NG 31 gauge test (WP 0018 00).
Test 1. Test for battery voltage to fuel
level sending unit.
1. Disconnect lead 28 from fuel
level sending unit.
2. Set multimeter to a voltage
range that will measure 24
VDC.
3. Connect negative lead to
frame ground and touch
positive lead to contact end of
lead 28.
Test 2. Test fuel gauge operation.
1. Turn power accessory switch
to OFF position.
2. With lead 28 already
disconnected from sending
unit, touch contact end to
frame ground.
3. Turn power accessory switch
to ON position.
4. Fuel gauge should read empty.
5. Lift lead 28 from frame
ground. Fuel gauge should
now read full.
Test 3. Test fuel gauge voltage.
Go to WP 0014 00, table 1,
malfunction 1, test 2, and check
battery voltage into fuel gauge.
1. If battery voltage is present, go to
test 2.
2. If battery voltage is not present, go
to test 3.
1. If fuel gauge shows empty, go to
step 5.
2. If fuel gauge does not show empty,
replace fuel gauge (WP 0095 00).
1. If fuel gauge shows full, it is
operational. Remove fuel level
sending unit (WP 0109 00) and go
to test 5.
2. If fuel gauge does not show full,
replace fuel gauge (WP 0095 00).
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