Makita EBH341R Original Instruction Manual

Makita EBH341R Original Instruction Manual Manual pdf 22 page image

22Before making a request for repairs, check a trouble for yourself. If any abnormality is found, control your machine according to the descriptionof this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local dealership.State of abnormality Probable cause (malfunction) RemedyEngine does not startFailure to operate primer pump Push 7 to 10 times.Low pulling speed of starter rope Pull strongly.Lack of fuel Feed fuel.Clogged fuel filter CleanBent fuel tube Straighten fuel tubeDeteriorated fuel Deteriorated fuel makes starting more difficult.Replace with new one. (Recommendedreplacement: 1 month)Excessive suction of fuel Set throttle lever from medium speed to highspeed, and pull starter handle until enginestarts. Once engine starts, cutter bladestarts rotating. Pay full attention to cutterblade.If engine will not start still, remove spark plug,make electrode dry, and reassemble them asthey originally are. Then, start as specified.Detached plug cap Attach securelyContaminated spark plug CleanAbnormal clearance of spark plug Adjust clearanceOther abnormality of spark plug ReplaceAbnormal carburetor Make request for inspection and maintenance.Starter rope cannot be pulled Make request for inspection and maintenance.Abnormal drive system Make request for inspection and maintenance.Engine stops soonEngine speed does not increaseInsufficient warmup Perform warm-up operationChoke lever is set to “CLOSE” althoughengine is warmed upSet to “OPEN”Clogged fuel filter CleanContaminated or clogged air cleaner CleanAbnormal carburetor Make request for inspection and maintenance.Abnormal drive system Make request for inspection and maintenance.Cutter blade does not rotateStop engine immediatelyLoosened cutter blade-tightening nut Tighten securelyTwigs caught by cutter blade or dispersion-preventing coverRemove foreign matterAbnormal drive system Make request for inspection and maintenance.Main unit vibrates abnormally.Stop engine immediatelyBroken, bent or worn cutter blade Replace cutter bladeLoosened cutter blade-tightening nut Tighten securelyShifted convex part of cutter blade and cutterblade support fittingAttach securelyAbnormal drive system Make request for inspection and maintenance.Cutter blade does not stop immediately.Stop engine immediatelyHigh idling rotation AdjustDetached throttle wire Attach securelyAbnormal drive system Make request for inspection and maintenance.Engine does not stopRun engine at idling, and set choke leverto CLOSE.Detached connector Attach securelyAbnormal electric system Make request for inspection and maintenance.When the engine does not start after warmup operation:If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.TROUBLESHOOTING