Stihl FS 91 User Manual

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
1
0000-GXX-0536-A0
Storing the Machine Sharpening Metal Cutting
Blades
2
2
1
2
1
1
002BA042 KN

Stihl FS 91 Specifications

General

Brand	Stihl
Model	FS 91
Category	Trimmer
Language	English