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Page Title: Table 1. Indicator, Gauges, and Warning System Troubleshooting - continued
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TM 9-2320-361-24-1
0014 00
INDICATORS, GAUGES, AND WARNING SYSTEM TROUBLESHOOTING (Contd)
Table 1. Indicator, Gauges, and Warning System Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
4. OIL PRESSURE
GAUGE
If STE/ICE-R is available, perform
INOPERATIVE
NG 31 gauge test (WP 0018 00).
Test 1. Test oil gauge operation.
1. Disconnect lead 36 at oil
pressure sending unit.
2. Turn power accessory switch
to ON position.
3. Oil pressure gauge should
show minimum pressure.
1. If oil pressure gauge operates
4. Touch contact end of lead 36
properly, go to test 3.
to frame ground. Oil pressure
2. If oil pressure gauge does not
gauge should show maximum
operate properly, go to test 2.
pressure.
Test 2. Test battery voltage to oil
pressure gauge. Go to
WP 0014 00, table 1,
malfunction 1, test 2.
1. Set multimeter to RX 1 scale.
2. Connect negative lead to
frame ground on engine.
3. Touch positive lead to contact
1. If resistance is 1 ohm or more,
of oil pressure sending unit.
replace oil pressure sending unit
Resistance should measure
less than 1 ohm with engine
2. If resistance is less than 1 ohm,
off (no oil pressure).
continue with step 4.
4. Remove oil pressure sending
5. Install mechanical gauge.
6. Start engine and check oil
1. If oil pressure is 10 psi or above at
pressure on mechanical
idle, replace oil pressure sending
gauge.
2. If oil pressure is less than 10 psi at
idle, gauge is accurate. Go to
WP 0008 00, table 1,
malfunction 13, to diagnose engine.
Test 4. Test continuity of lead 36.
1. Disconnect lead 36 from oil
pressure gauge.
2. Set multimeter to RX 1 scale.
3. Touch positive lead of
1. If continuity is not present, repair
multimeter to one end of lead
or replace lead 36 (WP 0090 00).
36 and negative lead of
2. If continuity is present, replace oil
multimeter to other end of
pressure gauge (WP 0095 00).
lead 36.

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