Maintenance and cleaning
32
Checking the spark plug
Danger
The ignition system generates an electromagnetic field.
► Wearers of pacemakers must not work on live parts.
Soiled spark plugs reduce the engine output. Clean the elec-
trode 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 operat-
ing instructions of the engine manufacturer).
Always check both spark plugs.
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 consumption. Independent of the operating
hours, change the filter insert at least once a year. Do not op-
erate the engine without air filter.
Observe the information in the operator’s manual of the en-
gine manufacturer.
Checking and charging the battery
Warning
Batteries can be dangerous.
► Keep children away.
► Never perform any changes to the battery.
► The battery is sealed and may never be opened.
► For all work on the battery of the battery cables, wear
safety glasses and gloves.
► If accidents with battery acid occur, always contact a
doctor.
Warning
Explosion hazard
When the battery is charged, explosive gases are gener-
ated. An explosion of the battery can result in injuries and
blindness.
► Keep open flames and ignition sources away and do not
smoke.
► Charge the battery only in well ventilated rooms.
Warning
Danger of chemical burn
Batteries contain acids. Contact with battery acid can res-
ult in blindness or serious burns.
► Always keep the battery upright and do not spill any bat-
tery acid.
► Avoid contact with skin and eyes.
► If battery acid comes into contact with eyes, immedi-
ately rinse the eyes with water.
If the starter does not get the engine going or only insuffi-
ciently, charge the battery.
The battery is maintenance-free.
Use electronically controlled charging systems. These char-
ging systems detect the connected battery and charge it with
the required charging current and terminate the charging pro-
cess when the battery is full.
Use a charger that is equipped with a 12 V connection for
standard norm outlets. Insert the plug for charging into the
standard norm outlet.
Charge the battery before you put the device away for winter
storage. A fully charged battery lasts for approx. 4 months
before it needs to be recharged.
