32
Malfunction
Possible causes
Remedial action
Chap.
Engine stops by
itself during re-
gular operation.
In addition, if auto-
matic engine shut-
down is installed.
Low engine power,
output and speed.
Fuel supply is interrupted:
- Tank run dry
- Fuel filter blocked
- Defective feed pump.
- Air in the fuel system.
Mechanical oil pressure monitor
stops the engine due to low oil
pressure.
Mechanical defects.
Stop signal from monitoring
element because of:
- oil pressure too low.
- cylinder head temperature
too high.
- alternator has failed
Fuel supply is obstructed:
- Tank run dry.
- Fuel filter blocked.
- Tank venting is inadequate
- Leaks at pipe unions.
- Air in the fuel system.
- Speed control lever does not
remain in selected position.
Add fuel.
Renew fuel filter.
Check through entire fuel supply
system.
Check fuel system for
penetration of air.
Check air vent valve.
Check engine oil level.
Activate mechanical oil pressure
monitor.
Contact a HATZ-service station.
Check engine for:
Engine oil level.
Cooling air passages blocked
or cooling system otherwise
affected.
See workshop manual.
Add fuel.
Renew fuel filter.
Ensure that tank is adequately
vented.
Check threaded pipe unions for
leaks.
Check fuel system for
penetration of air.
Check air vent valve.
Prevent speed control from
moving.
4.1.3.
4.1.4.
5.4.1.
5.2.1.
4.1.4.
4.1.3.
4.1.4.
5.4.1.
