Instruction manual

FS 240, FS 240 R
English
37
detachable SAE adapter nut, it must be
attached.) A loose connection between
spark plug boot and ignition wire
connector in the boot may create arcing
that could ignite combustible fumes and
cause a fire.
Installing the Spark Plug
N Screw the spark plug into the
cylinder.
N Press the spark plug boot firmly
onto the spark plug.
N Fit the cap (1) on the shroud from
the rear and push the lug (2) into the
opening (3) in the shroud at the
same time.
N Swing the cap forwards onto the
shroud, insert and tighten down the
screw (4) firmly.
If engine running behavior is still
unsatisfactory after the air filter has been
serviced and the carburetor and throttle
cable have been adjusted correctly, the
cause may also be in the muffler.
Have the muffler checked for
contamination (coking) by a servicing
dealer!
STIHL recommends that maintenance
and repair work be carried out only by
authorized STIHL dealers.
N Check the grease level regularly –
about every 25 hours of operation.
N Unscrew the filler plug (1). If no
grease can be seen on the inside of
the filler plug, screw the tube (2) of
STIHL gear lubricant for
brushcutters (special accessory)
into the filler hole.
N Squeeze up to 5 g (0.2 oz) grease
into the gearbox.
NOTICE
Do not completely fill the gearbox with
grease.
N Remove the tube of grease (2).
N Refit the filler plug (1) and tighten it
down firmly.
4
3
2
9926BA022 KN
Engine Running Behavior Lubricating the Gearbox
1
233BA010 KN
2