2L41C, 2M41, 2M41Z Faults
HATZ
89Operator’s Manual
Type of fault Possible causes Remedy Chapter
▪ The speed ad-
justment lever
does not stay in
the desired posi-
tion.
Block the speed
adjustment.
The engine loses
power and speed,
and black smoke
emerges from the
exhaust.
Dirty air filter unit. Check the degree
of dirt contamina-
tion of the air filter,
and clean or renew
it if necessary.
8.2.10 Main-
taining the
dry air filter,
page 68
Tappet clearance
not OK.
Adjust the tappet
clearance.
8.2.12
Check and
set the tap-
pet clear-
ance, page
72
Injection nozzle is
not functional.
Contact Hatz ser-
vice.
Engine becomes
very hot.
Indicator lamp for
the cylinder head
temperature (addi-
tional equipment)
lights up.
Too much engine
oil in the engine.
Drain the engine oil
to the upper mark
of the dipstick.
7.8 Check-
ing the oil
level and
adding oil if
necessary,
page 47
Inadequate cool-
ing:
▪ Contamination in
the entire area of
the cooling air
guides.
Clean the cooling
air area.
8.2.6 Clean-
ing the cool-
ing fan,
cooling fins
and oil
cooler, page
61
▪ Incompletely
closed air guide
parts or capsule
parts.
Check the air guide
parts and shafts for
completeness and
good sealing prop-
erties.
9.2 Emergency start
Electrical automatic shutoff (additional equipment)
The distinguishing feature of the electrical automatic shutoff is brief flashing
of all indicators after turning the starting key to position "I".
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