TM 5-2420-231-23-1
0024
Table 1. Low Engine Oil Pressure Indicator Fault - Continued.
024
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Connect batteries (WP 0157) and
Low Engine Oil Pressure
turn ignition switch to the on posi-
Indicator Fault - Continued
tion (TM 5-2420-231-10).
WARNING
Keep all tools and small parts away from machine while engine is
operating.
Hearing protection is required when standing within 50 ft (15.2 m) of the
machine while it is operating.
Failure to follow these warnings may result in injury to personnel or
damage to equipment.
4. Start and operate engine (TM 5-
2420-231-10) for approximately 10
minutes.
5. Using a digital multimeter, test for
Continuity - Replace oil pressure
continuity between engine oil pres-
switch (WP 0122).
sure switch (WP 0007, Figure 36)
Proceed to Test Step 5.
terminal 1 and machine ground.
No Continuity - Proceed to Test Step 3.
There should be no continuity.
Test Step 3. Check for Shorted Side
Console Wiring Harness.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove instrument cluster from
side console (WP 0177).
3. Disconnect side console wiring
harness connector (WP 0007, Fig-
ure 28) from instrument cluster
(WP 0007, Figure 29).
4. Using a digital multimeter, test for
Continuity - Proceed to Test Step 4.
continuity between side console
No Continuity - Replace instrument
wiring harness connector (WP
cluster (WP 0177).
0007, Figure 28) terminal 2 and
Proceed to Test Step 5.
machine ground. There should be
no continuity.
Test Step 4. Check for Shorted Main
Chassis Wiring Harness.
1. Remove front instrument panel
right-side cover (WP 0176).
0024-4