Operating Instructions; Cleaning The Air Filter - Stihl HS 45 Instruction Manual

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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 periods – see "Storing the
Machine".
12

Cleaning the Air Filter

If there is a noticeable loss of engine
power
1
2
Move the choke lever to l.
N
Press in the tab (1) and swing the
N
filter cover (2) down.
Clean away loose dirt from around
N
the filter.
5
4
3
2
Remove the foam element (3) and
N
felt element (4).
Wash the foam element in a clean,
N
non-flammable solution (e.g. soapy
water) and then dry.
Fit a new felt element. As a
N
temporary measure you can knock it
out on the palm of your hand or blow
it out with compressed air. Do not
wash.
Replace any damaged parts.
N
Fit the foam element (3) in the filter
N
cover (2) and the felt element (4) in
the filter housing (5).
Close the filter cover so that it snaps
N
into position.
HS 45