TM 5-6115-465-12
TO 35C2-3-446-1
NAVFAC P-8-625-12
TM 06858B/06859D-12
Table 3-2. Troubleshooting (Cont)
MALFUNCTION
PROBABLE CAUSE
CORRECTIVE ACTION
a. Improper starting procedure.
2. Engine cranks
a. Perform starting procedure as outlined in
but fails to
start
b. Low or no fuel supply.
b. Service fuel tank (para. 2-1). or use auxiliary
fuel supply (para. 2-3).
c. Water in fuel, contaminated or
c. Drain entire fuel system. Service with clean fuel
of proper grade (para. 3-49). Service fuel
incorrect grade of fuel.
filters (para. 3-26 and 3-43). Drain day tank
assembly (para. 3-25). Drain fuel tank and
service with clean fuel of proper grade (para.
d. Air in fuel lines.
d. Tighten any loose fuel supply line connections
e. Obstruction in fuel supply line.
e. Clean or replace fuel supply line (para. 3-83).
f. Defective day tank fuel level
f. Replace switch (para. 3-74).
and low fuel cutoff switch.
g. Defective fuel solenoid valve.
g. Replace fuel solenoid valve (para. 3-75).
h. Clogged fuel strainers or filters
h. Service fuel strainers (para. 3-26, 3-78) and
filter assembly (para. 3-26). Service secondary
fuel filter (para. 3-43).
i. Defective nozzle holder
i. Replace nozzle holder assembly (para. 3-82).
assembly.
j. Dirty air filter element.
j. Service air cleaner assembly (para. 3-24).
k. Speed switch not reset after
k. Depress reset button on back of overspeed
overspeed shutdown.
switch (para. 3-69).
a. Switch not held in START
3. Engine starts
a. Hold switch in START position until engine
position long enough.
correctly, but
oil pressure reaches 20 PSI ( para. 2-10).
stops when
START-RUN-
b. Defective speed switch.
b. Replace speed switch (para. 3-69).
STOP switch is
released.
c. Defective START-RUN-STOP
c. Replace switch (para. 3-112).
switch.
d. Service oil filter assembly (para. 3-4).
d. Clogged oil filter assembly.
e. Defective low oil pressure
e. Replace low oil pressure switch (para. 3-73).
switch.
f. High coolant temperature.
f. Refer to malfunction 11 of this table.
Change 16
3-19
