FSA 90, FSA 90 R
English
62
Placing Power Tool on the Ground
N Move the retaining latch to ƒ and 
remove the battery.
N Position your power tool so that the 
cutting attachment mounting face is 
pointing up.
Replacing Nylon Line
Always check the mowing head for signs 
of wear before replacing the nylon line.
WARNING
If there are signs of serious wear, 
replace the complete mowing head.
The nylon mowing line is referred to as 
"nylon line" or "line" in the following.
The mowing head is supplied with 
illustrated instructions for replacing the 
nylon line. Keep the instructions for the 
mowing head in a safe place.
N If necessary, remove the mowing 
head.
Adjusting Nylon Line
STIHL SuperCut
Fresh line is advanced automatically if 
the remaining line is at least 6 cm 
(2 1/2 in) long. The blade on the 
deflector trims overlong lines to the 
correct length.
STIHL AutoCut
N With the engine running, hold the 
rotating mowing head above the 
grass surface.
N Tap it on the ground once – fresh 
line is advanced and the blade on 
the deflector trims it to the right 
length.
Fresh line is advanced every time the 
mowing head is tapped on the ground. 
For this reason observe the mowing 
head's cutting performance during 
operation. If the mowing head is tapped 
on the ground too often, the line limiter 
blade will unnecessarily cut off unused 
lengths of nylon line.
Line feed operates only if both lines are 
still at least 2.5cm(1in) long.
Replacing Nylon Line
STIHL PolyCut
Precut lengths of nylon line can be fitted 
to the PolyCut in place of the cutting 
blades.
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 Cutting 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 thermoplastic 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.
Maintaining the Mowing 
Head