Stihl FR 350 - Blocking the Drive Shaft; Drive Shaft Blocking Method; Mounting the Mowing Head; STIHL Mowing Head Mounting

21FR 350, FR 450, FR 480
English
Blocking the Drive Shaft
: Insert the stop pin* or screwdriver*
(7) in the bore (8) in the gearhead as
far as stop, apply slight pressure.
: Rotate the shaft (2), nut or cutting
tool until the stop pin slips into
position and blocks the shaft.
Remove the tool used to block the
shaft after mounting the cutting tool.
* Included in scope of supply or
available as special accessory, see
“Special Accessories”
Mounting the Mowing Head
Keep instruction sheet for mowing head
in a safe place.
: Screw
STIHL SuperCut 20-2,
STIHL AutoCut 25-2, C 25-2, 30-2,
STIHL TrimCut 30-2 or
STIHL PolyCut 20-3
counterclockwise onto the shaft (1)
as far as stop.
: Block the output shaft.
: Tighten down the mowing head
firmly.
Remove the tool used to block the
shaft.
STIHL FixCut 25-2
: Place the mowing head on the
thrust plate (2).
Collar (arrow) 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.
: Use the combination wrench (5) to
screw the mounting nut (4) onto the
shaft and tighten it down firmly.
Remove the tool used to block the
shaft.
7
8
2
002BA166 KN
7
1
002BA081 KN
3
1
2
4
681BA026 KN
5