English
Fuel tank run until completely dry
N
After refueling, press the fuel pump
bulb at least eight times – even if the
bulb is filled with fuel.
N
Set the choke knob according to
engine temperature.
N
Start the engine.
20
Operating Instructions
During break-in period
A factory-new machine should not be
run at high revs (full throttle off load) for
the first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Empty the fuel tank
and keep the machine in a dry place,
well away from sources of ignition, until
you need it again. For longer out-of-
service perionds – see "Storing the
Machine".
Metering Unit
Valve lever
1
A
B
Solution feed is started and stopped with
the valve lever (1).
N
Position A (valve lever vertical, up)
– open
N
Position B (valve lever horizontal,
down) – closed
Metering knobs
The scope of supply includes metering
knobs which allow a wide range of
different discharge rates.
SR 430, SR 450
1