TM 5-6115-465-12
TO 35C2-3-446-1
NAVFAC P-8-625-12
TM 06858B/06859D-12
Troubleshooting (Cont)
Table 3-2.
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
d. Defective or improperly ad-
d. Adjust or replace shutter and control
11. Engine over-
justed shutter and controls.
assembly (para. 3-89).
e. Rust or scale clogging radiator.
e. Replace radiator (para. 3-88).
f. Radiator air passages clogged.
f. Clean radiator air passages (para. 3-31).
g. Collapsed radiator hoses.
g. Replace radiator hoses (para. 3-31).
h. Replace water pump assembly (para.
h. Defective water pump.
i. Restricted exhaust pipe or
i. Clean or replace exhaust pipe or
muffler (para. 3-102).
12. Engine coolant
a. Thermostat stuck open.
a. Replace thermostat (para. 3-93).
temperature
b. Adjust or replace shutter assembly
too low
b. Improperly adjusted or de-
fective shutter or control
trol linkage or thermostat (para. 3-87).
linkage and thermostat.
c. Defective temperature
c. Replace temperature transmitter
d. Defective coolant temperature
d. Replace coolant temperature gauge
gauge.
13. Battery charging a. Defecitve alternator fuse.
a. Replace fuse in back of alternator
ammeter shows
no charge when
b. Adjust alternator (para. 3-68).
batteries are
b. Improperly adjusted alternator.
low or dis-
charged
c. Adjust or replace v-belt (para. 3-90).
c. V-belt is out of adjustment or
broken.
d. Defective alternator.
d. Replace alternator (para. 3-68).
e. Check charging circuit wiring. Replace
e. Open wire or loose connection
in charging circuit.
broken wires and tighten loose con-
nections.
f. Batteries dry.
f. Refill battery cells with distilled water
14. Battery charging a. Improperly adjusted alternator.
a. Adjust alternator (para. 3-68).
ammeter shows
excessive charg- b. Defective batteries.
b. Replace batteries (para. 3-65).
ing after pro-
longed opera-
C . Defective alternator.
c. Replace alternator (para. 3-68).
tion.
d. Short in charging circuit.
d. Check charging circuit. Repair or re-
place shorted wiring.
e. Defective battery charging
e. Replace battery charging ammeter
3-22
