3H50, 4H50
Faults
HATZ
119
Manual
The engine loses power and speed.
Possible causes
Remedy
Section
Engine running due to
a fault in the emer-
gency run function (in-
strument box sends
flashing signal).
Switch off the engine, wait at
least 1 minute, then restart the
engine. (This deletes minor er-
rors).
7.4 Switching off
the engine, page
64
7.3 Starting the
engine, page 62
Check the coolant level.
8.2.5 Checking
the cooling sys-
tem, page 83
Drain water from the fuel pre-
filter.
8.2.12 Draining
the water separa-
tor, page 105
If the engine fault persists, con-
tact a HATZ Service immedi-
ately.
The tank ran out of fuel
during operation.
Add fuel.
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.
8.2.15 Servicing
the air filter (op-
tional), page 111
Turbocharger faulty or
leaking hoses.
Check hoses or contact HATZ
Service.
Injector not fully func-
tional.
Contact HATZ Service.
Engine becomes very hot. The engine temperature indicator lights up.
Possible causes
Remedy
Chapter
Contamination in the
entire area of the cool-
ing air guides.
Clean the cooling air area.
Radiator fins dirty, or
radiator blocked.
Clean the radiator fins, ensure
air flow through radiator is not
hindered.
