23RefuellingFOLLOW THE SAFETY PRECAUTIONS!Be careful and cautious when handling fuels.The engine must be switched off!Thoroughly clean the area around the caps, to prevent dirt fromgetting into the fuel or oil tank.Unscrew the tank cap (use the universal wrench if necessary,see illustration) and fill tank with fuel mixture or saw chain oilup to the bottom edge of the filling neck. Be careful not to spillfuel or chain oil!Screw on the tank cap by hand all the way.Clean the tank cap and the area around the tank afterrefuelling.Lubricating the chainDuring operation there must always be sufficient chain oil in thechain-oil tank to provide good chain lubrication. At medium oilfeed rate, the oil tank holds enough for one fuel tank’s worthof operation. During this procedure check whether there isenough the chain oil in the tank and refill if necessary. Do thisonly with the engine turned off! Screw on the tank cap byhand all the way.waste oilNEVER USE WASTE OILWaste oil is very dangerous for the environment.Waste oil contains high amounts of carcinogenic substances.Residues in waste oil result in a high degree of wear and tearat the oil pump and the sawing device.In case of damage caused by using waste oil or unappropriatechain oil the product guarantee will be null and void.Your salesman will inform you about the use of chain oil.AVOID SKIN AND EYE CONTACTMineral oil products degrease your skin. If your skin comes incontact with these substances repeatedly and for an extendedperiod of time, it will desiccate. Various skin deseases may result.In addition, allergic reactions are known to occur.Eyes can be irritated by contact with oil. If oil comes into youreyes, immediately wash them with clear water.If your eyes are still irritated, see a doctor immediately!Important note on bio-degradable chain oilsIf you are not planning to use the saw again for an ex-tended period of time, empty the oil tank and put in asmall amount of regular engine oil (SAE 30), and thenrun the saw for a time. This is necessary to flush out allremaining bio-degradable oil from the oil tank, oil-feedsystem, chain and guide bar, as many such oils tend toleave sticky residues over time, which can cause damageto the oil pump or other parts.The next time you use the saw, fill the tank with BIOTOPchain oil again. In case of damage caused by using wasteoil or unappropriate chain oil the product guarantee will benull and void.Your salesman will inform you about the use of chain oil.chain oilfuel/oil mixture