Faults
2-4L41C, 2-4M41(Z), 4L42C, 4M42
102
HATZ
Manual
The engine loses power and speed, and black smoke emerges from the ex-
haust
Possible causes
Remedy
Chapter
Dirty air filter unit.
Check the degree of dirt con-
tamination of the air filter, and
clean or renew it if necessary.
8.2.11 Maintain-
ing the dry air fil-
ter, page 79
Tappet clearance not
OK.
Adjust the tappet clearance.
8.2.13 Check and
set the tappet
clearance, page
83
Injection nozzle not
OK.
Contact Hatz Service.
Engine becomes very hot. Indicator lamp for engine temperature (option)
lights up.
Possible causes
Remedy
Chapter
Too much engine oil in
the engine.
Drain the engine oil to the up-
per mark of the dipstick.
7.9 Check the oil
level, page 57
Inadequate cooling:
▪ Contamination in the
entire area of the
cooling air guides.
Clean the cooling air area.
8.2.7 Cleaning
the cooling fan,
cooling fins and
oil cooler, page
72
▪ Incompletely closed
air guide parts or
capsule parts.
Check the air guide parts and
shafts for completeness and
good sealing properties.
9.2
Emergency start
Automatic electrical shutoff (option)
The identifying feature of the electrical automatic shutoff is brief flashing of
all indicators after the starting key is turned to position "I".
NOTICE
i
If the engine stops again immediately after starting, or stops in-
dependently during operation, this is an indication that a moni-
toring element of the automatic shutoff has been activated (see
chapter
).
If the engine switches off due to an electrical fault signal or due to insufficient
oil pressure with the aid of the automatic switch-off, an emergency start can
be attempted by the user. The user must bear responsibility for any resulting
damage.
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