Stihl FS 490 C-M - Anti-vibration and Wear Guard Maintenance

FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
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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 limiting
blade will unnecessarily cut off unused
lengths of nylon line.
Line feed operates only if both lines are
still at least 2.5 cm (1 in) long.
STIHL TrimCut
WARNING
To reduce the risk of injury, always shut
off the engine before adjusting the nylon
line by hand.
N Pull the spool up – rotate it about 1/6
turn counterclockwise until it
engages – and allow it to spring
back.
N Pull ends of the lines outward.
Repeat the above procedure as
necessary until both lines reach the
limiter blade on the deflector.
Rotating the spool from one stop to the
next advances about 4 cm (1 1/2 in) of
fresh line.
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
To reduce the risk of injury, always shut
off the engine before refilling the mowing
head.
N Fit precut lengths of 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.
WARNING
To reduce the risk of injury, always shut
off the engine before installing the
blades.
N Remove the mowing head.
N Replace blades as shown in the
illustrated instructions.
N Mount the mowing head on the
machine.