TM 5-3810-288-12
the drive cables to prevent dirt from entering the cable
housing.
7-34. Fire Extinguisher Service
Service the carrier fire extinguisher in the same manner
as the upper fire extinguisher. Refer to paragraph 3-32
7-33. Data Plate Inspection
and service the carrier fire extinguisher.
Inspect all data plates for readability, loose screws
and nuts, or other physical damage. Report any
deficiency
to
Organizational
Maintenance.
Section V. TROUBLESHOOTING
The corrective action recommended is described
7-35. General
opposite the probable cause.
This section provides information useful in diagnosing
and correcting unsatisfactory operation or failure of the
Model M320T Truck Crane and its components.
7-36. Troubleshooting
Malfunctions nrhich may occur are listed in table 7-2.
See table 7-2 for a tabulated listing of possible troubles,
Each malfunction stated is followed by a list of probable
probable causes, and possible remedies.
causes of the trouble.
Table 7-2. Troubleshooting
Malfunction
Probable cause
Corrective action
a. Batteries discharged or cables
a. Replace batteries (para 7-41) or
1. Engine will not crank.
loose or corroded.
clean and tighten cables (para
b. Faulty starter solenoid.
b. Replace starter solenoid (para
a.
a.
Out of fuel.
Fill fuel tank (para 7-15).
2. Engine will not start.
b.
b.
Restricted air intake.
Service air cleaner (para 7-14).
c.
c.
Improper ignition.
Service distributor (para 7-41).
d.
d.
Improper valve clearance.
Adjust valves (para 7-50).
e.
Replace or recharge battaries (para
e.
Defective battaries.
f. Low temperature.
f. Use cold weather starting aid (para
a.
a.
Radiator coolant level low.
Add coolant (para 7-8).
3. Engine overheats.
b.
b.
Engine oil level low.
Add oil (para 7-42).
c.
c.
Water pump V-belt loose.
Adjust belt (para 7-41).
d.
d.
Water pump faulty.
Replace water pump (para 7-43).
e.
e.
Collapsed hoses or loose connection
Check condition of coolant hose,
and tighten loose connection.
f. Defective thermostat.
f. Replace thermostat (para 7-42d)
a. Oil too light or diluted.
a. Drain crankcase and refill with
4. Low oil pressure.
correct oil. Refer to current LO.
b. Oil level low.
b. Add oil (para 7-42).
c. Oil filter clogged.
c. Change oil filters (para 7-42).
d. Faulty oil temperature sender or
d. Replace gauge or sender (para 7-42).
gauge.
7-12
