HATZ Diesel 4M42 - Manual (Page 94)

Type of fault Possible causes Remedy Chapter
After every extended period of disuse, if
you experience difficulties starting the
engine that can be eliminated by activat-
ing the feed pump for a lengthy period,
check that the fuel system is correctly
sized. 6.2 Assem-
bly instruc-
tions,
page 31
Insufficient com-
pression:
▪ Wrong tappet
clearance.
Check the tappet
clearance and ad-
just if necessary. 8.2.12
Check and
set the tap-
pet clear-
ance,
page 78
▪ Cylinder and/or
piston ring wear.
Contact the Hatz
service station.
▪ Faulty automatic
decompression.
Contact the Hatz
service station.
Injection nozzle is
not functional. Contact the Hatz
service station.
Torn cooling fan
belt. Renew the poly v
belt. 8.2.16 Re-
newing the
poly v belt
and check-
ing the func-
tion of the
switch-off
unit,
page 89
At low tempera-
tures Pre glow system is
faulty (additional
equipment). Contact the Hatz
service station.
Fuel gelled due to
insufficient cold re-
sistance. Check whether the
fuel that emerges
from the detached
fuel feed line di-
rectly at the injec-
tion pump is clear
and not cloudy. If
the fuel has gelled,
either warm the en-
gine or drain the
entire fuel supply
system. Fill with a
temperature-resist-
ance fuel mixture. 4.2 Fuel,
page 23
7.7 Refuel-
ing, page 50
8.2.9
Changing
the fuel pre-
filter,
page 72
8.2.14
Change the
fuel filter,
page 83
Faults 2-4L41C, 2-4M41, 2-4M41Z, 4L42C, 4M42
94 Operator's Manual HATZ