Makita EA7300P Operator's And Safety Manual

Also see for EA7300P: Instruction manual Operator's and safety manual

28MAINTENANCESharpening the saw chainCAUTION: Before doing any work on the guide bar or chain,always switch off the engine and pull the plug cap off thespark plug (see "Replacing the spark plug"). Always wearprotective gloves!The chain needs sharpening when:The sawdust produced when sawing damp wood looks likewood flour.The chain penetrates the wood only under great pressure.The cutting edge is visibly damaged.The saw is pulled to the left or right when sawing. This is causedby uneven sharpening of the chain.Important: Sharpen frequently, but without removing toomuch metal!Generally, 2 or 3 strokes of the file will be enough.Have the chain resharpened at a service center when you havealready sharpened it yourself several times.STOPAProper sharpening:CAUTION: Use only chains and guide bars designed forthis saw (see the Extract from the spare-parts list)!All cutters must be of the same length (dimension a). Cutterswith different lengths result in rough running of the chain andcan cause cracks in the chain.The minimum cutter length: 0."(3 mm). Do not resharpen thechain when the minimum cutter length has been reached; atthis point, the chain must be replaced (see the Extract from thespare-parts list and "Replacing the saw chain").The depth of the cut is determined by the difference in heightbetween the depth limiter (round nose) and the cutting edge.The best results are obtained with a depth-limiter depth of.025" (0.64 mm).CAUTION: Excessive depthincreases the risk of kickback!The sharpening angle of 25° must be identical for all cutters!Different angles result in a roughly, irregularly running chain,increase wear and tear and cause chain beakage.The front rake 60° of the cutter results from the cut depth ofthe round file. If the proper file is used in the right manner, thecorrect front rake will be obtained automatically.C.025"(0.64 mm).025"(0.64 mm)Bmin.3 mm (0.11”)