► If you store the trimmer for more than 30 days:
► Remove the cutting attachment.
► Open the fuel tank cap.
► Drain the fuel tank.
► Close the fuel tank.
► If a manual fuel pump is fitted: Press the
manual fuel pump at least 5 times.
► Start the engine and run it at idling speed
until it stops.
15 Cleaning
15.1 Cleaning the Trimmer
► Shut off the engine.
► Allow trimmer to cool down.
► Clean the trimmer with a damp cloth or STIHL
resin solvent.
► Clean cooling air slots with a soft brush.
15.2 Cleaning the Deflector and Cut‐
ting Attachment
► Shut off the engine.
► Clean the deflector and cutting attachment
with a damp cloth or a soft brush.
16 Maintenance
16.1 Maintenance Intervals
The maintenance intervals are dependent on the
environmental and operating conditions. STIHL
recommends the following maintenance inter‐
vals:
After every 50 hours of operation
► Lubricate the gearbox.
After every 100 hours of operation
► Install a new spark plug.
Monthly:
► Have fuel tank cleaned by a STIHL servicing
dealer.
► Have pickup body in fuel tank cleaned by a
STIHL servicing dealer.
Every 12 months
► Have pickup body in fuel tank replaced by a
STIHL servicing dealer.
16.2 Lubricating the Gearbox
► Remove screw plug (2).
► If no grease is visible on the end of the screw
plug (2):
► Apply tube of "STIHL gear grease" (1) to the
filler hole.
► Squeeze 5 g of STIHL gear grease into the
gear housing.
► Insert and tighten the screw plug (2)
securely.
► Start the engine and run it for one minute at
full throttle.
The STIHL gear lubricant is evenly distrib‐
uted.
16.3 Adjusting the Throttle Cable
► Start the engine.
► Press the throttle trigger (1) without pressing
the throttle trigger lockout (2).
► If the engine accelerates: Hold the throttle trig‐
ger (1) depressed and turn screw (3) counter‐
clockwise until there is no further audible drop
in engine speed.
The throttle cable had been over-tensioned.
► Press and hold the throttle trigger (1) without
depressing the throttle trigger lockout (2).
► Turn screw (3) clockwise until the engine
accelerates.
► Turn the screw (3) counterclockwise by 1.5
turns.
The engine runs at idle speed, and the throttle
cable adjustment is correct.
► Shut off the engine.
English 15 Cleaning
16 0458-733-0121-C