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or old fuel. Use only fresh plumb free petrol and fuel stabiliser.
• Parts which are rubbed out or broken due to operation with unsufficient oil level, using dirty
or oil incorrect specifications. Use the oil recommended by the manufacturer.
• Repair or adjustment of connected parts or assembly, e.g. gear couplings, remote controls
and similar, not original ones.
• Damage or wear of parts caused by dirt particles which penetrated into engine due to
incorrect maintenance or assembly of air filter or using non original cleaner or filter inlay.
• Parts which were damaged due to engine overspeeding or overheating caused by clogging
or blocking cooling ribs or flywheel space by grass, chips or dirts or damages caused by
engine operation in closed room.
• Engine damage or its parts by enormal vibrations caused by loosening engine assembly,
mowing knives, loosened or unbalanced flywheels, incorrect fastening device to engine
shaft, overspeeding or other incorrect operation.
• Bended or broken crankshaft after hitting to rigid object or for V-belts overtensioning.
• Engine damaged or its part e.g. combustion chamber, valves, valve saddles, valve leading
or burning starter coil as result of using incorrect fuel – for example liquid gas, natural gas,
incorrect petrol etc.
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