Hatz 1B30 - The engine fires but then fails to continue running; Fault signal from the overvoltage and polarity protection system in the voltage regulator; The starter does not switch on and the engine does not turn.

1B20, 1B30, 1B40, 1B50 Faults
HATZ
89Manual
Possible causes Remedy Chapter
Fuel filter is clogged. Change the fuel filter. 8.2.11 Changing
the fuel filter,
page 79
Stop signal from monitoring elements that are associated with the au-
tomatic switch-off (optional):
▪ No oil pressure. Check the oil level. 7.6 Check the oil
level, page 48
▪ Defective alternator
(only for "External
valve box" version).
Contact HATZ Service.
▪ Engine temperature
too high.
Check the cooling air guides
for contamination or other im-
pairments.
8.2.8 Clean the
cooling air area,
page 71
▪ Motor runs at over-
speed (only in "Valve
box mounted on the
engine" version).
Contact HATZ Service.
Fault signal from the overvoltage and polarity protection system in
the voltage regulator:
Battery and/or other
cable connections are
incorrectly connected.
Check the electrical equipment
and its components or contact
Hatz service.
Electrical equip-
ment
Loose cable connec-
tions.
The starter does not switch on and the engine does not turn.
Possible causes Remedy Chapter
Irregularities in the electrical equipment:
Battery and/or other
cable connections are
incorrectly connected.
Check the electrical equipment
and its components or contact
Hatz service.
3.2.4 Electrical
equipment, page
18
Cable connections are
loose and/or oxidized.
Battery is faulty and/or
not loaded.
Faulty starter.
Faulty relay, monitor-
ing elements, etc.