Stihl FS 45 Instruction Manual
26
English / USA
FS 45, FS 46
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.
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.
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
Wait for engine to cool down. Drain the
fuel tank. Store the machine in a dry
place. Check tightness of nuts and
screws (not adjusting screws) at regular
intervals and retighten as necessary.
fuel tank. Store the machine in a dry
place. Check tightness of nuts and
screws (not adjusting screws) at regular
intervals and retighten as necessary.
Dirty air filters reduce engine power
increase fuel consumption and make
starting more difficult.
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of engine
power
power
:
Set choke lever to
g
:
Press in the tab (1) and swing the
filter cover (2) open.
filter cover (2) open.
:
Clean away loose dirt from around
the filter.
the filter.
:
Remove the felt filter element (3).
:
Do not wash the felt element. Fit a
new one. As a temporary measure,
clean it by knocking it out on the
palm of your hand or blowing it out
with compressed air.
Replace damaged parts of filter.
new one. As a temporary measure,
clean it by knocking it out on the
palm of your hand or blowing it out
with compressed air.
Replace damaged parts of filter.
:
Place the felt element (3) in the filter
housing (4).
housing (4).
:
Close the filter cover so that it snaps
into position.
into position.
Operating Instructions
Cleaning the Air Filter
232BA017 KN
1
2
232BA018 KN
4
3