1B20, 1B27, 1B30, 1B40, 1B50 Faults
HATZ
87Operator's Manual
If equipped with a fuel shut-off valve or electrical automatic shutoff (engine
does not start)
Possible causes Remedy Chapter
The fuel shut-off valve
is not functional and/or
irregularities in the
electrical equipment.
Contact Hatz Service.
For low temperatures (engine does not start)
Possible causes Remedy Chapter
Temperature below
start limit temperature.
Activate the pre glow system
(option).
7.4.2 Starting the
engine with a
starter, page 39
Pre glow system (op-
tion) defective.
Contact Hatz Service.
Fuel gelled due to in-
sufficient cold resis-
tance.
Check whether the fuel that
emerges from the fuel feed line
is clear and not cloudy. If the
fuel has gelled, either thaw the
engine or drain the entire fuel
supply system. Fill with a tem-
perature-resistant fuel mixture.
4.5 Fuel, page 26
8.2.11 Changing
the fuel filter,
page 78
Oil is too viscous and
causes a too low
starter speed.
Change the engine oil.
Add engine oil with a suitable
viscosity class.
8.2.4 Change the
engine oil, page
60
Insufficiently charged
battery.
Check the battery and contact
the service center if necessary.
3.2.4 Electrical
equipment, page
18
Machine is not uncou-
pled.
If possible, separate the engine
from the machine by uncou-
pling it.
The engine fires but then fails to continue running
Possible causes Remedy Chapter
The speed control
lever is not sufficiently
set to the Start direc-
tion.
Set the lever to the Start posi-
tion.
7.3 Setting the
speed control,
page 36
Machine is not uncou-
pled.
If possible, separate the engine
from the machine by uncou-
pling it.
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