Operating Instructions; Cleaning The Air Filter - Stihl HS 75 Manual De Instrucciones

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 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.
HS 75, HS 80

Cleaning the Air Filter

1
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
If there is a noticeable loss of
engine power
:
Move choke lever to g
: Press in the tab (1).
: Ease the filter cover (2) over the
tab and take it away.
: Clean away loose dirt from around
the filter.
:
Remove the foam and felt filter
elements.
2
4
:
Wash the foam element in a clean,
non-flammable cleaning solution
(e.g. warm soapy water) and then
dry.
:
Fit new felt element.
As a temporary measure you can
knock it out on the palm of your
hand or blow it out with compressed
air. Do not wash.
Replace damaged parts.
:
Install the foam element (3) in the
filter cover (2).
:
Place felt element (4) (lettering
facing inward) in filter housing (5).
:
Fit filter cover so that it snaps into
position.
English / USA
2
3
5
15