TM 9-2350-230-12
TABLE 8-4. TROUBLESHOOTING
Malfunction
Probable cause
Corrective action
ENGINE
NOTE. For corrective
action of malfunctions not
listed in this table, refer
to supporting maintenance
personnel.
1.starter will not engage.
a. Master switch off.
a. Turn master switch "ON".
b. Shift lever not in neutral
b. Move shift lever into
position.
neutral position.
c. The neutral switch may not
c. Neutral safety switch not
functioning properly.
be closed properly due to
improper adjustment.
Readjust or replace.
d. Batteries discharged or
d. Low battery voltage.
defective. Test and
service, or replace. If
properly charged batteries
are not available, slave
vehicle from external 24-
volt dc power source
e Tighten electrical
e. Loose electrical connections
and/or ground strap.
connections,
f. Defective starter switch,
with audible sound when
supplied with 24 volts,
replace solenoid.
Feel starter relay. If no
tected when supplied with
24 volts, replace.
Test switch electrically,
replace if required.
g. Defective starter motor.
If starter does not rotate
when supplied with 24
volts, replace starter.
2. Starter rotates freely
Starter pinion not engaging
Replace starter.
but engine fails to
flywheel.
crank.
3. Engine will not rotate.
a. Low battery voltage.
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