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TM 5-2410-237-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 6. Electrical System Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
16. Hourmeter Inoperative.
1.
Test hourmeter circuit.
a. Place battery disconnect
switch in OFF position.
b. Check for a blown fuse.
1. Replace blown fuse with
same rated fuse (WP 0092
2. If fuse is not blown, proceed
to step c.
c. Disconnect engine oil
pressure switch-to-hour-
meter wire at switch.
d. Set
to
appropriate voltage range.
e. Connect meter positive
lead to switch output
terminal
and
meter
negative lead to chassis
ground.
HOURMETER
ENGINE OIL
PRESSURE
SWITCH
387-902
Change 1
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