FS 91, FS 91 R
English
41
Check grease level after every 25 hours
of operation and re-lubricate if
necessary.
N Remove the screw plug (1).
N If no grease can be seen on the
inside of the screw plug (1): Screw
the tube (2) of STIHL gear lubricant
(special accessory) into the filler
hole.
N Squeeze no more than 5 g (1/5 oz)
grease into the gearbox.
NOTICE
Do not completely fill the gearbox with
grease.
N Unscrew the tube (2).
N Insert the screw plug (1) and tighten
it down firmly.
For periods of about 3 months or longer
N Drain and clean the fuel tank in a
well ventilated area.
N Dispose of fuel properly in
accordance with local
environmental requirements.
N Run the engine until the carburetor
is dry – this helps prevent the
carburetor diaphragms sticking
together.
N Remove, clean and inspect the
cutting attachment. Coat metal
cutting attachments with corrosion
inhibitor.
N Thoroughly clean the machine – pay
special attention to the cylinder fins
and air filter.
N Store the machine in a dry and
secure location – out of the reach of
children and other unauthorized
persons.
N Use a sharpening file (see "Special
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.
N Sharpen frequently, take away as
little metal as possible – two or three
strokes of the file are usually
enough.
N Resharpen the teeth (1) uniformly –
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.
Lubricating the Gearbox
Storing the Machine Sharpening Metal Cutting
Blades
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General
Weight and Dimensions
