Stihl FS 120 User Manual

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”.

Stihl FS 120 Specifications

General

Power source	Gasoline
Type	Brush cutter
Cordless	Yes
Head type	Nylon line
Handle type	U-type handle
Engine power	1.8 hp
Product color	Black, Metallic, Orange
Uncertainty K	2 m/s²
Sound power level	110 dB
Fuel tank capacity	0.64 L
Vibration emission	4.9 m/s²
Engine displacement	30.8 cm³
Sound pressure level	98 dB
Cutting diameter (max)	- mm

Weight and Dimensions

Length	1760 mm
Weight	6300 g