Wacker Neuson DPU 5545He, Operator'S Manual

Page: 34 / 48

Operation
T00996GB.fm
34
4.8 Additional notes on starting at very low temperatures!
Never use starting sprays or similar - they are forbidden because they
are dangerous.
Only use original Wacker crank.
If cranking, is too slow, the engine can start running in the opposite
direction of rotation.
In this case the air is drawn in through the exhaust and the exhaust
gases excape through the air filter. Risk of fire! Switch off engine and
start it again.
Free the engine by turning it approximately 10 to 20 times with the
decompression lever in a central position. Then the engine is
decompressed, but not ready to start. This intermediate position is
used to turn the engine "free" when at very low temperatures. The
turning resistance becomes appreciably lower owing to the change in
viscosity of the oil film. At the same time you will hear that the nozzle
of the fuel injection system is injecting cleanly (rattling).
At very low temperatures (below -5
o C), use the starting oil dosing
device.
Note: Do not use more than 2 doses as otherwise there is a risk
of crank back-swing.