the saw chain breaks or derails. The right hand guardalso gives you protection from branches or twigs.Vibration damping systemThe vibration damping system decreases vibration in thehandles. Vibration damping units operate as aseparation between the product body and the handleunit.Refer toProduct overview on page 2 for informationabout where the vibration damping system is on yourproduct.Start/stop switchUse the start/stop switch to stop the engine.MufflerWARNING: The muffler becomes veryhot during/after operation and at idle speed.There is a risk of fire, especially when youoperate the product near flammablematerials and/or fumes.WARNING: Do not operate a productwithout a muffler or with a defective muffler.A defective muffler can increase the noiselevel and the risk of fire. Keep fireextinguishing tools near. Do not use aproduct without, or with a broken, sparkarrestor mesh if you must have a sparkarrestor mesh in your area.The muffler keeps the noise levels to a minimum andpoints the exhaust fumes away from the operator. Inareas with a hot, dry weather there is a high risk of fire.Obey local regulations and maintenance instructions.Fuel safetyWARNING: Read the warninginstructions that follow before you use theproduct.• Make sure there is plenty of ventilation whenrefuelling or mixing fuel (petrol and two-stroke oil).• Fuel and fuel vapour are highly flammable and cancause serious injury when inhaled or allowed tocome in contact with the skin. For this reasonobserve caution when handling fuel and make surethere is adequate ventilation.• Take care when handling fuel and chain oil. Beaware of the risks of fire, explosion and thoseassociated with inhalation.• Do not smoke and do not place any hot objects inthe vicinity of fuel.• Always stop the engine and let it cool for a fewminutes before refuelling.• When refuelling, open the fuel cap slowly so that anyexcess pressure is released gently.• Tighten the fuel cap carefully after refuelling.• Never refuel the machine while the engine isrunning.• Always move the product at least 3 m (10 ft) awayfrom the refuelling area and fuel source beforestarting.591 - 003 - 23.02.2021 7