English
Tap paper filter (2) to dislodge dirt.
NOTICE
■ Using compressed air for cleaning can dam‐
age the paper filter.
► Do not use compressed air to clean the
paper filter.
NOTICE
■ Dust and dirt behind the paper filter may
result in damage to the engine.
► Clean the paper filter so no dust and dirt
are left behind it.
► Assemble the air filter,
7.5
Checking the Spark Plug
► Place the STIHL machine on a level surface.
► Stop the engine and allow it to cool down.
► Detach spark plug socket (1).
► If the area around spark plug (2) is dirty: clean
the area around spark plug (2) with a cloth.
► Unscrew spark plug (2).
► Clean spark plug (2) with a cloth.
► Measure electrode gap (A) using a feeler
gauge. Adjust if necessary: A = 0.8 mm.
► Replace the spark plug,
– If spark plug (2) is corroded.
– If insulator (3) exhibits cracks or damage.
► Screw in spark plug (2) firmly by hand.
► Tighten spark plug (2) using a spark plug
wrench.
– Used spark plug: 1/8 to 1/4 turn
– New spark plug: 1/2 turn
► Press on spark plug socket (1) firmly.
7.6
Changing the Engine Oil
Warm engine oil drains quickly and completely.
► Allow the engine to warm up.
► Run the tank empty.
► Stop the engine.
► Place the STIHL machine on a level surface.
CAUTION
■ Danger of burns
14
7.3.
9.2:
► Do not touch hot engine parts.
► Unscrew oil dipstick (1),
► Unscrew screw plug (2) on the underside of
the engine using a size 10 spanner.
► Remove screw plug (2).
► Allow all the engine oil to drain into a suitable
container (3).
► Screw in screw plug (2).
► Add fresh engine oil,
► Screw in oil dipstick (1),
8
Specifications
8.1
Exhaust Emissions
The CO
value measured in the EU type appro‐
2
val procedure is specified at www.stihl.com/co2
in the product-specific technical data.
The measured CO
value was determined on a
2
representative engine in accordance with a
standardised test procedure under laboratory
conditions and does not represent either an
explicit or implied guarantee of the performance
of a specific engine.
The applicable exhaust emission requirements
are fulfilled by the intended usage and mainte‐
nance described in this instruction manual. The
type approval expires if the engine is modified in
any way.
9
Spare Parts and Accesso‐
ries
9.1
Spare parts and accessories
These symbols indicate original STIHL
spare parts and original STIHL acces‐
sories.
STIHL recommends the use of original STIHL
spare parts and accessories.
Despite ongoing market observation, STIHL is
unable to judge the reliability, safety and suitabil‐
ity of other manufacturers' spare parts and
8 Specifications
7.2.
5.2.
7.2.
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