FSA 90 R
English
24
STIHL DuroCut, STIHL PolyCut
WARNING
Before fitting fresh lines in the mowing
head, set the retaining latch to
ƒ
and
remove the battery – this helps reduce
the risk of injury.
N
Fit nylon line in the mowing head as
described in the instructions
supplied.
Replacing Blades
STIHL PolyCut
Always check the mowing head for signs
of wear before installing new cutting
blades.
WARNING
If there are signs of serious wear,
replace the complete mowing head.
The cutting blades are referred to as
"blades" in the following.
The mowing head is supplied with
illustrated instructions for replacing the
blades. Keep the instructions for the
mowing head in a safe place.
WARNING
Before fitting the blades, set the
retaining latch to
ƒ
and remove the
battery – this helps reduce the risk of
injury.
N
Remove the mowing head.
N
Replace blades as shown in the
illustrated instructions.
N
Mount the mowing head.
N
Use a sharpening file (special
accessory) 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.
Balancing
N
After resharpening about 5 times,
check the cutting attachment for
out-of-balance on a STIHL balancer
(special accessory) or have it
checked by a dealer and re-
balanced as necessary – STIHL
recommends a STIHL servicing
dealer.
Sharpening Metal Cutting
Blades
2
2
1
002BA113 KN
2
1
1
