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1. Remove the spark plugs con-
nector (
the Spark Plug").
2. Open the air filter box (9) and
take out the air filter (10).
3. Clean the air filter (10) with
soap solution and let it dry. Put
a few drops of fresh engine oil
into the air filter.
4. To install, place the air filter (10) in
the air filter box (9) and reclose it.
Maintaining the Spark Plug
A worn spark plug or a spark gap
that is too large will result in a re-
duction of engine performance.
1. Disconnect the spark plug con-
nector (12) from the spark plug
(13) by simultaneously pulling
and turning.
2. Unscrew the spark plug (13) an-
ticlockwise.
3. Check the spark gap using a
feeler gauge (available from
specialist shops). The spark gap
must be at least 0.5-0.6 mm.
4. If necessary, adjust the gap by
carefully bending the ground
electrode on the spark plug.
5. Clean the spark plug with a wire
brush.
6. Insert the cleaned and adjusted
spark plug or replace a dam-
aged spark plug with a new one
(recommended torque 20 Nm,
determined with a torque
wrench) (see "Replacement
parts/Accessories").
94
12) (see "Maintaining
Changing the Engine Oil
Change the engine oil with the petrol
tank empty and the engine warm.
• Change the engine oil for the
first time after around 5 operat-
ing hours then every 50 operat-
ing hours or annually.
• Dispose of the used oil in an
ecofriendly manner (see "Dis-
posal/Environmental protection").
1. Remove the spark plug connector
(
12) (see "Maintaining the Spark
Plug").
2. Open the oil tank cover (
pump out the motor oil with an oil pump.
3. Refill with engine oil (see "Initial Op-
eration").
Adjusting the Bowden
cable
If the Bowden cables go out of adjust-
ment, you can adjust them.
1. Loosen the small locking nut (36).
2. - Turn the adjusting nut (37) counter-
clockwise:
The Bowden cable shortens.
- Turn the adjusting nut (37) clockwise:
The Bowden cable extends.
Checking/Sharpening/Replac-
ing the Blade
Only allow specialist companies to
install and dismantle the knife.
Wear gloves when handling the
blade.
21) and
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