15488728 Rev.
IDENTIFICATION OF SYMBOLS WARNING: Careless or incorrect use of line trimmers can result in serious or fatal injury to the operator or others. This product is in accordance with applicable EC directives. Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. Noise emission to the environment according to the European Community’s Directive. The machine’s emission is specified in the Technical data section and on label.
IDENTIFICATION (WHAT IS WHAT?) TECHNICAL DATA SHEET MODEL: MT 250 LK ENGINE Cylinder displacement, cm3 At maximum engine power, rpm Maximum rotational frequency of the spindle, rpm Engine speed at recommended maximum spindle rotational frequency, rpm Recommended speed idling, rpm Maximum engine power, measured in accordance with ISO 8893, kW Catalytic converter muffler IGNITION SYSTEM Spark plug Electrode gap, mm FUEL AND LUBRICATION SYSTEM Fuel tank volume capacity, cm3 Fuel consumption at maximum engine
S Mufflers fitted with catalytic converters get very hot during use and remain so for some time after stopping. This also applies at idle speed. Contact can result in burns to the skin. Remember the risk of fire! S Never start or run inside a closed room or building. Breathing exhaust fumes can kill. S Keep handles free of oil and fuel. UNIT / MAINTENANCE SAFETY S Disconnect the spark plug before performing maintenance except carburetor adjustments.
TROUBLESHOOTING TABLE ASSEMBLY WARNING: Always stop unit and disconnect spark plug before performing all of the recommended remedies below except remedies that require operation of the unit. TROUBLE CAUSE Engine will not start. 1. ON/STOP switch in STOP 1. Move ON/STOP switch to ON position. position. 2. Engine flooded. 2. See “Starting a Flooded Engine” in Operation Section. 3. Fuel tank empty. 3. Fill tank with correct fuel mixture. 4. Spark plug not firing. 4. Install new spark plug. 5.
The carburetor has been carefully set at the factory. Adjustments may be necessary if you notice any of the following conditions: S Engine will not idle when the throttle is released. Make adjustments with the unit supported so the cutting attachment is off the ground and will not make contact with any object. Hold the unit by hand while running and making adjustments. Keep all parts of your body away from the cutting attachment and muffler.
Cover Spool 8. Position the lines in the guide slots. Guide slot Guide slot 2. Remove any remaining line. 3. Clean dirt and debris from all parts. Replace spool if it is worn or damaged. 4. Replace with a pre-wound spool, or replace line using an 8 metre length of 2 mm diameter McCulloch approved trimmer line. 6. Pull starter rope handle sharply until engine sounds as if it is trying to start, but do not pull rope more than 6 times. 7.
CUTTING METHODS WARNING: Use minimum speed and do not crowd the line when cutting around hard objects (rock, gravel, fence posts, etc.), which can damage the trimmer head, become entangled in the line, or be thrown causing a serious hazard. S The tip of the line does the cutting. You will achieve the best performance and minimum line wear by not crowding the line into the cutting area. The right and wrong ways are shown below.
