3H50, 4H50 Faults
HATZ
117Manual
9 Faults
9.1 Troubleshooting
General troubleshooting notes
If the cases listed below have been worked through but the fault continues to
persist, please contact your nearest Hatz service station.
Indicator for engine fault on the HATZ instrument box is flashing.
Possible causes Remedy Section
Coolant level too low. Top up coolant. 8.2.5 Checking
the cooling sys-
tem, page 83
Maximum water level
in the water separator
reached.
Drain water from the fuel pre-
filter.
8.2.12 Draining
the water separa-
tor, page 105
Various errors in differ-
ent assemblies.
Contact HATZ Service.
The engine does not start or does not start immediately, but can be turned
with the starter.
Possible causes Remedy Chapter
Hydraulic load too high
(especially with multi-
ple hydraulic pumps).
Reduce the hydraulic load – if
possible.
Insufficient compres-
sion.
Contact HATZ Service.
Cylinder and/or piston
ring wear.
Contact HATZ Service.
Fuel supply is interrupted:
The tank ran out of fuel
during operation.
Add fuel. 7.6 Refueling,
page 68
Electrical fuel pump is
not working.
Check the cabling.
Fuel prefilter is
clogged.
Change the fuel prefilter. 8.2.13 Changing
the fuel prefilter,
page 106
Main fuel filter is
clogged.
Change the main fuel filter. 8.2.14 Changing
the main fuel fil-
ter, page 108
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