1B20, 1B30, 1B40, 1B50 Faults
HATZ
87Manual
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.
The engine does not start or is difficult to start, but can be turned easily as
usual
Possible causes Remedy Chapter
Speed control lever in
stop or idle position.
Set the speed control lever to
the START position.
7.3 Setting the
speed control,
page 37
Stop pin in STOP posi-
tion.
Move the stop pin by pulling it
lightly into the operating posi-
tion.
7.5.1 Switching
off the engine
(mechanical),
page 45
No fuel at the injection
pump.
Refuel. 7.7 Refueling,
page 51
Systematically check the entire fuel supply. If
this does not yield results:
▪ Check the feed line to the
engine.
▪ Check the fuel filter. 8.2.11 Changing
the fuel filter,
page 79
Injection nozzle is not
functional.
Contact Hatz Service.
Insufficient compression:
▪ Wrong tappet clear-
ance.
Check the tappet clearance
and adjust if necessary.
8.2.6 Check and
set the tappet
clearance, page
66
▪ Cylinder and/or pis-
ton ring wear.
Contact Hatz Service.
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