When Problems Occur - Vetus D-LINE VD4.120 Operation Manual

1 Safety measures
When the engine stops suddenly:
If the engine stops suddenly, do not start it
again immediately. Track down the cause and
carry out the necessary repairs before you
start the engine again. If you do not do this,
serious engine problems can develop.
If the oil pressure is too low:
Stop the engine immediately and check the
lubrication system. Running an engine with
low oil pressure can cause bearing and other
parts to seize.
8
lf the engine overheats:
If the engine should overheat, do not switch
it off immediately. If an overheated engine is
stopped suddenly, this can cause the coolant
temperature to rise rapidly and moving parts
to seize. First let the engine run in neutral to al-
low the hot parts of the engine to cool down,
stop the engine and allow it to cool, and then
gradually top up the coolant. Remember:
adding coolant to an overheated engine can
cause damage to the cylinder head.

When problems occur

If the fan belt is broken:
Immediately stop the engine. If an engine is
used with a broken fan belt, this can lead to
the engine overheating, which in turn can
cause coolant to spray out of the expansion
tank.
If the engine behaves strangely:
Stop the engine or reduce the speed as far as
possible.
Do not use the engine again until the cause of
the defect has been solved.