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14
7. Maintenance
Injury warning!
Always wear protective gloves when working on or around cutting tools.
Change and clean the spark plug (Fig3)
Check the spark plug air gap at least once a year or when the engine starts poorly. The correct gap
between ignition flag and ignition contact is 0.25“/0.63 mm.
Wait until the engine has cooled down completely.
Pull the spark plug cap off the spark plug, and use the supplied spark plug wrench to remove the
spark plug by turning.
When the electrode is severely worn out or reveals a strong incrustation, the spark plug must be
replaced with an equivalent plug.
A strong incrustation of the spark plug can be caused by: Amount of oil is too high in the gasoline mix,
poor oil quality, old gasoline mix, or plugged up air filter.
Screw the spark plug by hand completely into the thread. (Avoid jamming it)
Use the supplied spark plug wrench to tighten the spark plug.
When using a torque wrench, the tightening torque is 12-15 Nm.
Plug the spark plug socket correctly on the plug.
Clean the air filter
Soiled air filters reduce the engine power by supplying too little air to the carburetor. Dust and pollen plug
up the pores of the filter made of foamed plastic. Regular checks are therefore essential.
Unclip the air filter cover and remove the sponge filter element.
To avoid objects falling into the air tank, replace the air filter cover.
Wash the filter element in warm soap water, rinse and allow drying naturally.
Important: Never clean the air filter with petrol or inflammable solvents.
In order not to shorten the service life of the engine, a damaged air filter must be replaced at once.
Warning!
Never run the engine without the air filter element installed.
FUEL FILTER
Inside the fuel tank there is a filter which prevents impurities from entering the engine. The filter should be
replaced once a year by your Retailer.
Injury warning!
Always wear protective gloves when working on or around cutting tools.
Cleaning
Keep the ventilation slots of the machine clean to prevent overheating of the engine.
Regularly clean the machine housing with a soft cloth, preferably after each use.
Keep the ventilation slots free from dust and dirt.
If the dirt does not come off use a soft cloth moistened with soapy water.
Regularly check the device before starting work.
Never use water to clean or spray the device. Clean the motor casing with a damp cloth and never
use detergents or solvents! This may damage the device‘s plastic parts. Dry the motor casing carefully
afterwards.
Only use OEM parts for maintenance work. Using parts other than original parts can cause damage
to the ma-chine.
Maintenance
Our machines have been designed to operate over a long period of time with a minimum of maintenance.
Continuous satisfactory operation depends upon proper machine care and regular cleaning.
Keep all nuts, bolts and screws tight to be sure the appliance is in safe working condition.
Replace worn or damaged parts.
Use only genuine replacement parts and accessories
Store the appliance only in a dry place.
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