Storing The Machine; Sharpening Metal Cutting Blades - Stihl FS 90 Instruction Manual

Storing the Machine

For periods of about 3 months or longer
Drain and clean the fuel tank in a
N
well ventilated area.
Dispose of fuel properly in
N
accordance with local
environmental requirements.
Run the engine until the carburetor
N
is dry – this helps prevent the
carburetor diaphragms sticking
together.
Remove, clean and inspect the
N
cutting attachment. Coat metal
cutting attachments with corrosion
inhibitor.
Thoroughly clean the machine – pay
N
special attention to the cylinder fins
and air filter.
Store the machine in a dry and
N
secure location – out of the reach of
children and other unauthorized
persons.
FS 90, FS 90 R
Sharpening Metal Cutting
Blades
Use a sharpening file (see "Special
N
Accessories") to sharpen dull
cutting attachments. In case of
more serious wear or nicks:
Resharpen with a grinder or have
the work done by a dealer – STIHL
recommends a STIHL servicing
dealer.
Sharpen frequently, take away as
N
little metal as possible – two or three
strokes of the file are usually
enough.
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2
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2
Resharpen the teeth (1) uniformly –
N
do not alter the contour of the parent
blade (2) in any way.
See cutting attachment packaging for
additional sharpening instructions. Keep
the packaging for future reference.
Balancing
After resharpening about 5 times,
N
check the cutting attachment for
out-of-balance on a STIHL balancer
– see "Special Accessories" – or
have it checked by a dealer and re-
balanced as necessary – STIHL
recommends a STIHL servicing
dealer.
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2
English
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