TM 9-2350-230-12
Malfunction
Probable cause
Corrective action
ENGINE - Continued
3. Engine will not rotate -
b. Internal seizure
b. Notify support maintenance.
Continued
4. Low engine crank
a. Low battery voltage
a. Replace batteries or slave
speed
vehicle.
b. Loose or corroded battery
b. Clean and tighten battery
cable terminals or elec-
cable terminals and
trical connections
electrical connections.
c. Incorrect oil viscosity for
c. Consult LO 9-2350-230-12
prevailing temperature
for proper grade of oil.
5. Engine cranks but fails a. Insufficient fuel a. Check fuel tanks, add fuel
to start
if required.
b. Fuel shut-off control is
b. Open fuel shut-off.
closed.
c. Fuel shut-off valves on fuel
c. Open fuel tank valves.
tanks are closed.
d. Main fuel line disconnected
d. Connect fuel line,
e. Fuel injector racks not in
e. Refer to support
full fuel position due to
maintenance.
defective injector or bind
in control linkage.
f. Defective engine fuel pump
g. Restriction in air inlet
g. Remove restriction.
h. Defective engine air blower
h. Notify support maintenance.
drive.
i. Low engine compression
gaskets defective. Notify
support maintenance.
j. Air in fuel system
j. Check fuel lines for leaks
and tighten.
6. Engine fails to start
a. Low engine crank speed
a. Engine crank speed should
in low ambient
be at least 100 rpm.
temperature.
b. Battery power low
b. Replace batteries or slave
vehicle.
c. Improper oil viscosity for
c. Refer LO 9-2350-230-12.
prevailing temperature.
8-13