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English
FR 350, FR 450, FR 480
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 engine to run for a while
at idle speed so that the heat in the
engine can be dissipated by flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After finishing work
Storing for short period:
Wait for engine to cool down. Drain the
fuel tank and keep the unit in a dry place,
away from sources of ignition, until you
need it again.
Storing for a long period:
see chapter "Storing the Machine".
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
FR 350
If there is a noticeable loss of engine
power
: Turn choke knob to g.
: Press in the tab (1).
: Pull off the filter cover (2).
: Clean away loose dirt from inside
the filter cover and around the filter.
: Remove the filter element (3) and
inspect it – replace if dirty or
damaged.
: Fit the air filter in the cover.
: Push the filter cover into position.
FR 450, FR 480
If there is a noticeable loss of engine
power
: Turn choke knob to g.
: Loosen the mounting screw (1).
: Pull off the filter cover (2).
Operating Instructions Cleaning the Air Filter
1
2
3
250BA006 KN
1
2
3
256BA062 KN
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