Makita ER2550LH Original Instruction Manual

Also see for ER2550LH: Original instruction manual Original instruction manual Owner's and safety manual Original instruction manual Original instruction manual

Contents

19TROUBLESHOOTINGBefore making a request for repairs, check for trouble by 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 timesLow pulling speed of starter rope Pull stronglyLack of fuel Feed fuelClogged fuel filter CleanBroken fuel tube Straighten fuel tubeDeteriorated fuel Deteriorated fuel makes starting more difficult.Replace with new fuel. (Recommendedreplacement: 1 month)Excessive suction of fuel Set throttle lever from medium speed to highspeed, and pull starter handle until enginestarts. Once engine starts, nylon cuttinghead starts rotating. Pay full attention tonylon cutting head.If engine will not start still, remove spark plug,make electrode dry, and reassemble them asthey originally are. Then, start as specified.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 increaseInsufficient warm-up Perform warm-up operationChoke lever is set to “CLOSE” althoughengine is warmed up.Set 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.The cutting attachment does not rotate.Stop engine immediately!The cutting attachment is not tightenedsecurely.Tighten the cutting attachment securely.A twig is caught between the cuttingattachment and the protector.Remove the foreign matter.The drive system does not work properly. Ask Makita authorized service center toinspect and repair it.The unit vibrates abnormally.Stop engine immediately!The cutting attachment is broken. Replace the cutting attachment with new one.The cutting attachment is not tightenedsecurely.Tighten the cutting attachment securely.One end of nylon cutting cord has beenbroken and the nylon cutting head gotunbalanced.Feed the nylon cutting cord with tapping thenylon cutting head on the ground.The drive system does not work properly. Ask Makita authorized service center toinspect and repair it.The cutting attachment does not stop.Stop engine immediately!The power unit does not work properly. Refer to the instruction manual of the powerunit.Engine does not stopRun engine at idling, and set choke leverto CLOSEDetached connector Attach securelyAbnormal electric system Make request for inspection and maintenance.The nylon cutting cord does not feed. The cord is used up or tangled in the spool. Rewind the cord.The nylon cutting cord is not cut off at thecorrect length.The cord cutter on the protector is damagedor missing.Ask Makita authorized service center toreplace the cord cutter.The cord extends past the protector. Rewind the cord.When the engine does not start after warm-up operation:If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.