HATZ Diesel 1B 50 - Manual (Page 82)

Type of fault Possible causes Remedy Chapter
▪ Air in the fuel
system.
Check the fuel sys-
tem for air ingress.
Check the bleed
valve.
▪ 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. Air filter is dirty. Clean the air filter
or renew it. 8.2.12
Maintaining
the dry air
filter,
page 73
Tappet clearance
not OK. Adjust the tappet
clearance. 8.2.6 Check
and set the
tappet
clearance,
page 56
Injection nozzle is
not functional. Contact the Hatz
service station.
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 44
Inadequate cool-
ing:
▪ Contamination in
the entire area of
the cooling air
guides.
Clean the cooling
air area.
▪ Incompletely
closed air baffle
plates.
Check the cooling
air baffle plates
and shafts for com-
pleteness and
good sealing prop-
erties.
Faults 1B20, 1B27, 1B30, 1B40, 1B50
82 Operator's Manual 1B20-1B50 HATZ