Operating Instructions; Cleaning The Air Filter - Stihl FC 83 Instruction Manual

english / USA

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.
20

Cleaning the Air Filter

2
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 the choke lever to g
:
Release screw (1) and remove the
filter cover (2).
:
Clean away loose dirt from around
the filter.
3
4
:
Remove the foam element (3).
:
Remove the metal screen (4) from
the filter housing (5) only if it is dirty.
:
Knock out the filter element and
metal screen on the palm of your
hand, blow out with compressed air
or, if necessary, wash in a clean,
non-flammable solution (e.g. warm
soapy water) and then dry.
5
FC 83