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Checking the spark plugs
Danger
The ignition system generates an electro-
magnetic field.
► Wearers of pacemakers must not work
on live parts.
Soiled spark plugs reduce the engine output.
Clean the electrode of the spark plug with a
brass wire brush. Check the electrode gap
(see operating instructions of the engine manu-
facturer). Make sure that the insulator around
the electrode is not damaged. Never use a
damaged spark plug.
Tighten the spark plug using the correct torque
(see operating instructions of the engine manu-
facturer).
Maintaining the air filter
Warning
There is a fire and explosion risk due to
cleaning agents.
► Never clean the air filter with flammable
solvents.
Make sure that the air filter is always clean. A
dirty air filter reduces the engine power and
leads to increased engine wear and fuel con-
sumption. Independent of the operating hours,
change the filter insert at least once a year. Do
not operate the engine without air filter.
For this, observe the attached operating in-
structions of the engine.
Maintenance specifically for
2-stroke device
Maintaining the engine
Warning
If the speed of rotation is set too high, ob-
jects can be ejected. The engine can be
damaged and noise pollution increases.
► Do not change the basic setting of the
carburetor or the speed control.
To ensure a long service life of the engine, suf-
ficient engine cooling is required.
Keep the
- engine cover (ventilation grid),
- silencer (protective grid) and
- cooling fins of the engine
clean at all times.
Checking the spark plugs
Danger
The ignition system generates an electro-
magnetic field.
► Wearers of pacemakers must not work
on live parts.
Soiled spark plugs reduce the engine output.
Clean the electrode of the spark plug with a
brass wire brush. Check the electrode gap
(see “Technical data”). Make sure that the in-
sulator around the electrode is not damaged.
Never use a damaged spark plug.
Tighten the spark plug with the torque indic-
ated in the technical data.
