Makita EM2550UH Instruction Manual

Contents

Makita EM2550UH Instruction Manual Manual pdf 20 page image

20STORAGEFault locationWARNING: When draining the fuel, be sure to stop the engine and confirm that the engine coolsdown.Just after stopping the engine, it may still hot with possibility of burns, inflammability and fire.ATTENTION: When the machine is kept out of operation for a long time, drain up all fuel from the fueltank and carburetor, and keep it at a dry and clean place.– Drain up fuel from the fuel tank and carburetor according to the followingprocedure:1) Remove the fuel tank cap, and drain fuel completely.If there is any foreign matter remaining in the fuel tank, remove itcompletely.2) Pull out the fuel filter from the refill port using a wire.3) Push the primer pump until fuel is drained from there, and drain fuelcoming into the fuel tank.4) Reset the filter to the fuel tank, and securely tighten the fuel tank cap.5) Then, continue to operate the engine until it stops.– Remove the spark plug, and drip several drops of engine oil through the sparkplug hole.– Gently pull the starter handle so that engine oil will spread over the engine,and attach the spark plug.– Attach the cover to the cutter blade.– During storage, keep the rod horizontal or keep the machine upright with theblade edge oriented upward. (In this case, pay full attention to prevent themachine from falling.)Never store the machine with the cutter blade edge oriented downward.Lubricating oil may spill out.– Keep the drained fuel in a special container in a well-ventilated shade.Attention after long-time storage– Before startup after long-time shutdown, be sure to replace oil (refer to P 17). Oil will deteriorate while the machine is kept out of operation.Fault System Observation CauseEngine not starting or withdifficultyIgnition system Ignition spark O.K. Fault in fuel supply or compression system, mechanicaldefectNo ignition spark STOP-switch operated, wiring fault or short circuit, sparkplug or connector defective, ignition module faultyFuel supply Fuel tank filled Incorrect choke position, carburetor defective, fuel supplyline bent or blocked, fuel dirtyCompression No compression whenpulled overCylinder bottom gasket defective, crankshaft sealsdamaged, cylinder or piston rings defective or impropersealing of spark plugMechanical fault Starter not engaging Broken starter spring, broken parts inside of the engineWarm start problems Tank filled ignition sparkexistingCarburetor contaminated, have it cleanedEngine starts but dies Fuel supply Tank filled Incorrect idling adjustment, carburetor contaminatedFuel tank vent defective, fuel supply line interrupted,cable or STOP-switch faultyInsufficient performance Several systems maysimultaneously beaffectedEngine idling poor Air filter contaminated, carburetor contaminated, mufflerclogged, exhaust duct in the cylinder cloggedDrain fuel Humidity