22
English / USA
FS 500, FS 550
Adjusting Nylon Line
Note
A detailed description is contained in
the instruction sheet supplied with the
mowing head.
STIHL AutoCut
Hold the rotating mowing head above
the ground.
: 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.
STIHL TrimCut
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.
