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If the lawn mower is to be stored for more than
three months:
► Run the fuel tank empty.
► Have the fuel tank cleaned by a STIHL spe‐
cialist dealer.
► Change the engine oil as described in the
engine instruction manual.
► Unscrew the spark plug.
WARNING
■ Sparks may escape if the starter handle is
pulled out while the spark plug socket is
detached. Sparks may cause fires and explo‐
sions in highly flammable or explosive environ‐
ments. This may result in serious or fatal injury
to people and damage to property.
► Keep the spark plug socket away from the
spark plug opening.
► Pull out and return the starter handle a
number of times.
► Screw in the spark plug and tighten firmly.
15 Cleaning
15.1
Upending the Lawn Mower
► Run the fuel tank empty.
The engine stops.
► Place the lawn mower on a level surface.
► Detach the grass catcher box.
► Set the cutting height to position 1,
► Unhook the starter handle from the starter
rope guide.
► Detach spark plug socket (1).
► Hold handlebar (2) and loosen star grip
nuts (3).
► Set down handlebar (2) to the rear.
► Open discharge flap (4) and hold it open.
► Upend the lawn mower.
15.2
Cleaning the Lawn Mower
► Stop the engine.
► Allow the lawn mower to cool down.
► Detach the spark plug socket.
► Clean the lawn mower with a damp cloth.
► Clean the ventilation slots with a paintbrush.
► Upend the lawn mower.
32
► Clean the area around the blade and the blade
with a stick, a soft brush or a damp cloth.
16 Maintenance
16.1
Maintenance intervals are dependent on the
ambient conditions and the working conditions.
STIHL recommends the following maintenance
intervals:
Engine
► Maintain the engine as described in the engine
instruction manual.
Lawn mower
► Have the lawn mower inspected annually by a
STIHL specialist dealer.
16.2
16.2.1
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
11.2.
► Block blade (1) using a piece of wood (4).
► Unscrew bolt (2) and remove together with
washer (3).
► Remove blade (1).
► Discard bolt (2) and washer (3).
Use a new bolt and washer to attach blade (1).
16.2.2
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Place new washer (3) on new bolt (2).
Maintenance Intervals
Removing and Attaching the
Blade
Removing the Blade
Attaching the Blade
15 Cleaning
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