Air Filter - Stihl 090 Instruction Manual / Owners Manual

, =
Oil filler cap
2
=
Manual oiler
3
=
Oil inspection window
Alte r adjusting hold adjusting screw with a fork wrench
and counter hexagonal nut again with second wrench.
Thereafter assemble air finer and filter cover again.
In extreme cases (failure of automatic oil pump, heavy
frost etc.) the use of the hand oiler assures sufficient chain
lubrication.
Also during longer cutting periods with longer cutting
lengths the chain
is
additionally supplied with lubricating
all by activating the manual oller. Moreover, before
starting
we recommend to supply
add~lonal
lubricating oil to bar
and chain by activating the manuai olier should the saw
s~
idle at freezing temperatures for a longer period. Thus the
cutting attachment is protected against excessive wear.
The oil level can be -checked at the inspection window (3).
Always fill up with chain oil before starting work. Check
the oil level at frequent intervals during cutting and top
~
30
up before it drops too low.
Air Filter
Disassembty of air filter
The air filter's function is to intercept dust and dirt in the
combustion air and thus reduce wear on engine compo-
nents.
Clogged air Mers reduce engine power, increase fuel
consumption and make starting more difficun.
The airfilter must be cleaned dally-or morefrequently
in very dusty operating conditions.
Before removing the finer, close the choke vaive so that no
dirt can get Into the carburetor. Unscrew the finer cover
and take out the filter element.
For daily cleaning it is sufficient to clean the filter with a
soft brush. However, the complete' air fitter should be
washed In clean gasoline at least once a week and blown
out with compressed air IT possible (Hocked air filters must
not be cleaned with compressed air, brushes or rags).
If the wire mesh is damaged on either hart of the air finer
(or If the fiocking is damaged), always
fit
a new part.
It
is advisable to carry a spare filter with you at ali Umes
and clean the dirty finer in the workshop.