Stihl FS 90 Instruction Manual page 31

English / USA
STIHL FixCut 25-2
: Place the mowing head on the
thrust plate (2).
Collar (arrows) must locate in the
mowing head's mounting hole
: Push the thrust washer (3) over the
shaft (1) so that it locates against
the base.
: Block the output shaft.
: Screw the mounting nut (4) with the
combination wrench (5)
counterclockwise on to the output
shaft and tighten down firmly.
Remove the tool used to block the
shaft.
30
Removing the Mowing Head
: Block the output shaft.
STIHL SuperCut 20-2,
STIHL AutoCut 25-2,
STIHL AutoCut C 25-2,
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 on the deflector trims
overlong 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 on the deflector trims
overlong 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 the 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 Cutting
Blades
Refer to the instructions supplied with
the mowing head.
FS 90, FS 90 R