Hatz M Series - 9 Faults; 9.1 Troubleshooting Guide

Faults 3-4L43C, 3-4M43, 3-4M43Z
88
HATZ
Manual
9 Faults
9.1 Trouble shooting
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 does not start immediately, but it can be turned
with the starter.
Possible causes Remedy Chapter
No fuel at the injection
pump.
Refuel. 7.6 Refueling,
page 41
Operate the manual fuel pump. 7.3.1 Pumping
fuel with the
manual fuel
pump, page 34
Systematically check the entire fuel supply. If
this does not yield results:
▪ Check the feed line to the
engine.
▪ Check the fuel prefilter. 8.2.9 Changing
the fuel prefilter,
page 63
▪ Check the main fuel filter. 8.2.14 Change
the main fuel fil-
ter, page 73
▪ Check the function of the
feed pump.
Injection nozzle is not
functional.
Contact Hatz service.
Poly v belt torn. Renew the poly v-belt. 8.2.6 Checking
the poly v belt,
page 57
Insufficient compression:
▪ Wrong tappet clear-
ance.
Check the tappet clearance
and adjust if necessary.
8.2.12 Checking
and setting the
tappet clearance,
page 69
▪ Cylinder and/or pis-
ton ring wear.
Contact Hatz service.