Stihl FS 450 Instruction Manual - Page 25

STIHL PolyCut 40-3 Mowing Head, Adjusting Nylon Line

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English / USA 4 6 STIHL PolyCut 40-3 Mowing Head : Block the output shaft with the stop pin. : Position the mowing head on the shaft. : Fit the thrust washer (6) - convex side must face down. : Screw on the nut (4) counter- clockwise and tighten it down firmly. Remove the stop pin. Removing the mowing head : Block the output shaft. : Unscrew the nut clockwise. If the mounting nut is too loose, fit a new one. 256BA010 KN Adjusting Nylon Line Note: A detailed description is contained in the instruction sheet supplied with the mowing head. SuperCut mowing head Fresh line is advanced automatically during mowing work and trimmed to the correct length by the blade on the deflector. Line feed operates only if both lines are still at least 2.4 in (6 cm) long. AutoCut mowing head Hold unit with engine running (mowing head must rotate) above the lawn. : Tap the mowing head on the ground - fresh line is advanced and the blade on the deflector trims surplus line to the correct length. Line feed operates only if both lines are still at least 1 in (2.5 cm) long. TrimCut mowing head Shut off the engine and move the slide control to 0. Hold mowing head housing firmly and : Pull spool up - rotate it about 1/6 turn counterclockwise and allow it to spring back. : Pull ends of lines outward. Repeat the above procedure as necessary until both lines are 5.5 in (14 cm) long. Rotating the spool from one stop to the next advances about 1.6 in (4 cm) of fresh line. 24 FS 300, FS 350, FS 400, FS 450, FS 480

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24
English / USA
FS 300, FS 350, FS 400, FS 450, FS 480
STIHL PolyCut 40-3 Mowing Head
:
Block the output shaft with the stop
pin.
:
Position the mowing head on the
shaft.
:
Fit the thrust washer (
6
) – convex
side must face down.
:
Screw on the nut (
4
)
counter-
clockwise
and tighten it down
firmly.
Remove the stop pin.
Removing the mowing head
:
Block the output shaft.
:
Unscrew the nut
clockwise
.
If the mounting nut is too loose,
fit a new one.
Adjusting Nylon Line
Note:
A detailed description is contained in the
instruction sheet supplied with the
mowing head.
SuperCut mowing head
Fresh line is advanced automatically
during mowing work and trimmed to the
correct length by the blade on the
deflector.
Line feed operates only if both lines are
still at least 2.4 in (6 cm) long.
AutoCut mowing head
Hold unit with engine running (mowing
head must rotate) above the lawn.
:
Tap the mowing head on the ground
–
fresh line is advanced and the
blade on the deflector trims surplus
line to the correct length.
Line feed operates only if both lines are
still at least 1 in (2.5 cm) long.
TrimCut mowing head
Shut off the engine and move the slide
control to
0
. Hold mowing head housing
firmly and
:
Pull spool up – rotate it about 1/6
turn counterclockwise and allow it to
spring back.
:
Pull ends of lines outward.
Repeat the above procedure as
necessary until both lines are 5.5 in
(14 cm) long.
Rotating the spool from one stop to the
next advances about 1.6 in (4 cm) of
fresh line.
4
6
256BA010 KN