Hatz 4H50TIC - Page 91

Type of fault Possible causes Remedy Chapter
Engine becomes
very hot.
Indicator light for
excess coolant
temperature lights
up.
Too much engine
oil in the engine.
Drain the engine oil
to the max mark on
the dipstick.
7.6 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.
▪ Radiator fins
dirty, or radiator
blocked.
▪ Thermostat or
water pump faul-
ty.
▪ Clean the cooling
air area.
▪ Clean the radia-
tor fins, ensure
air flow through
radiator is not
hindered.
▪ Contact Hatz
service.
8.2.6 Clean-
ing the radi-
ator fins,
page 64
8.2.4
Checking
the cooling
system,
page 57
Combined indicator
on instrument box
flashes.
Various errors in
different assem-
blies.
Use the flash code
table to identify and
rectify errors.
Flash code table
Flash signal
Short – Long
Possible causes Remedy Chapter
1 – 1
Area affected:
Monitoring of indi-
cating and control
elements
▪ Indicator(s) or
cabling faulty.
▪ Insufficient con-
trol unit power
supply.
▪ Other errors not
specified in more
detail.
▪ Check the func-
tion and cabling
of the indicators.
▪ Check the power
supply of the
control unit.
1 – 2
Area affected:
Speed sensor sys-
tem
▪ Crankshaft or
camshaft sensor
cabling faulty.
▪ Check the ca-
bling.
Faults 4H50TIC
92 Operator's Manual
HATZ