29FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R
English / USA
Removing the mowing head
: Block the output shaft.
STIHL SuperCut 20-2, 
STIHL AutoCut 25-2, 30-2, 
STIHL TrimCut 30-2, 
STIHL PolyCut 20-3
: Unscrew the mowing head 
clockwise.
STIHL FixCut 25-2
: Use the combination wrench to 
unscrew the mounting nut clockwise 
from the output shaft
If the mounting nut is too loose, fit a 
new one
Adjusting nylon line
STIHL SuperCut
Fresh line is advanced automatically if 
remaining line is still min. 2 1/2" (6 cm)  
long. The blade in the deflector trims 
surplus line to the correct length.
STIHL AutoCut
: Hold the rotating mowing head 
above the ground – tap it on the 
ground once – about 1 1/4"(3 cm) 
fresh line is advanced. 
The blade in the deflector trims surplus 
line to the correct length – avoid tapping 
head more than once at a time.
Line feed operates only if both lines 
still have a minimum length of 
1" (2.5 cm). 
All other mowing heads
Refer to instructions supplied with the 
mowing head.
To reduce the risk of injury, always 
shut off the engine before adjusting 
the nylon line by hand.
Replacing nylon line or PolyCut 
blades
Refer to instructions supplied with the 
mowing head.
Mounting Metal Cutting Tools
Remove the skirt and blade from 
the mowing head deflector before 
mounting
grass cutting blade 230-4 (1),
grass cutting blade 230-8 (2),
or brush knife (3) – see “Mounting 
the Deflector”
Fit the appropriate limit stop before 
mounting the circular saw blade 200 
(4,5) – see “Mounting the Deflector”.