TM 9-2350-230-12, C4
Table 5-1. Troubleshooting-Continued
Malfunction
Probable causes
Corrective action
ENGINE - Continued
5. Engine overheats
a. Restricted air passages
a. Check grilles (5,6, Fig. 1-2) and radiator
for clogging.
b. Cooling fan not operating properly
b. Check fan operation (Item 2, Fig. 2-9).
c. Drive belts slipping
c. Check tensioner (A. Fig. 5-2).
d. Low coolant level
d. Check for leaks and surge tank coolant
level (A, Fig. 5-2).
e. Malfunction of lubrication system
e. Check 4U level (A, Fig. 5-) and fill
as specified In LO 9-2350-230-12.
f. Coolant pump inoperative
f. Check belt tensioner (Fig .5-1.1
6. Low or no oil pressure
a. Low oil level
a. Replenish (A, 1*. 5-2).
b. Improper lubricating oil
b. Drain (Fig. 5-7) and refill as specified
in LO 9-2350-230-2-1-
c. 0il leaks
c. Examine engine compartment Fl.'5-2,
for evidence of oil leaks.
TRANSMISSION
7. Transmission does not drive in
Low main oil pressure
Chock oil level (A, Fig. 5-2) and
any range
replenish (LO 9-2350-230-12).
BATTERIES AND
GENERATING SYSTEM
8. No current in battery circuit
a. Loose cable connections
a. inspect, clean, and tighten cables and
connection at battery O), Fig. 5-3)
and master relay.
b. Dead batteries
b. Replace or charge batteries.
c. Discharged batteries
c. Check batteries (D, Fig. 5-3).
9. Batteries do not stay charged
Excessive use of electrical equipment
Discourage prolonged usage of electrical
when engine is not running
equipment without engine running
10. Vehicle MASTER SWITCH indi-
a. MASTER 8W1TCH not on
a. Turn MASTER SWITCH on (Fig. 2-10).
enter lamp does not light.
b. Lamp burned out
b. Replace (Table 5-3).
c. Loose electrical leads
c. Inspect and tighten connection if required
TRACKS AND SUSPENSION
11. Vehicle pulls to o de d with
a. Improper track tension
at Adjust (Fig. 5-4).
Steer bar in center position.
b. Build-op of mud or dirt on one track
b. Clean.
12. Vehicle thrown track
a Improper driving or operation of
a. Improper driving methods. Do not
vehicle
make high speed turns.
b. Excessively loose or worn track
b. Adjust track tension (Fig. 5-4).
PERSONNEL HEATER
13. Heater fails to 8ta
Incorrect operating procedure
Refer to operating procedure (Fig. 2-17 .
14. Heat exchanger load up with
a. Too heavy grade of fuel oil for ambient
a. Improper grade of fuel oil
soot and carbon
condition
(LO 9-2350-2330-12).
b. Restriction in exhaust
b. Remove restriction (4, Fig.
5-2
