301216151317Replacing the saw chainCAUTION: Use only chains and guide bars designed forthis saw (see the Extract from the spare-parts list)!Check the sprocket before mounting a new chain.Worn out sprockets (12) may damage the new chain and musttherefore be replaced.Remove the sprocket guard (1) (See „PUTTING INTO OPE-RATION“ figs. B).Remove the chain and guide bar.Remove circlip (13).CAREFUL: The circlip will jump out of the groove unless youhold it down with your thumb while removing it.Remove cup-disc (15).Replace the old sprocket (12) with a new one (16). For the partnumber consult the “Extract from the spare parts list”.Assemble the new sprocket, cup-disc and circlip.For replacing the guide bar, chain, and sprocket see „PUTTINGINTO OPERATION A-H“.NOTE:New chains stretch, so check the chain tension frequently (see“Checking the chain tension”).DCReplacing the fuel filterThe felt filter (17) of the fuel filter can become clogged.It is recommended to replace the fuel filter once everythree months in order to ensure unimpeded fuel flow to thecarburetor.To remove the fuel filter for replacement, pull it out throughthe tank filler neck using a piece of wire bent at one end toform a hook.ECleaning the guide barCAUTION: Protective gloves must be worn.Regularly inspect the bearing surfaces of the guide bar fordamage, and clean them with a suitable tool.