16.3 Adjusting Nylon Line
16.3.1 STIHL AutoCut
► Hold the rotating mowing head above the
ground – tap it on the ground once – about
3 cm (1.2 in) of fresh line is advanced.
► The blade (1) on the deflector (2) trims surplus
line to the correct length – avoid tapping the
mowing head more than once at a time.
Line feed operates only if both lines still have a
minimum length of 2.5 cm (1 in).
If the line is shorter than 2.5 cm (1 in):
WARNING
To reduce the risk of injury, always shut off the
engine before adjusting the nylon mowing line by
hand.
► Turn the machine over.
► Press down the cap on the spool as far as
stop.
► Pull the ends of the lines out of the spool.
If the spool is empty, refill with nylon line.
16.3.2 All other mowing heads
Refer to the leaflet supplied with the mowing
head.
WARNING
To reduce the risk of injury, always shut off the
engine before adjusting the nylon mowing line by
hand.
16.4 Replacing Nylon Line
STIHL DuroCut
WARNING
To reduce the risk of injury, always shut off the
engine before refilling the mowing head.
► Fit nylon line in the mowing head as described
in the instructions supplied.
16.5 Replacing Cutting Blades
16.5.1 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.
► Remove the mowing head.
► Replace blades as shown in the illustrated
instructions.
► Mount the mowing head on the machine.
17 Inspections and Mainte‐
nance by Dealer
17.1 Fuel pickup body in tank
► Have the pickup body in the fuel tank replaced
every year.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer.
17 Inspections and Maintenance by Dealer English
0458-232-0121-F 21
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