McCulloch Supreme 300 L Spare Parts List

To start the McCulloch Supreme 300 L Brushcutter, ensure the on/off switch is in the 'on' position. Prime the engine by pressing the primer bulb several times until fuel is visible inside. Set the choke lever to the 'start' position, then pull the starter rope until the engine starts. Once running, move the choke lever to the 'run' position.
The McCulloch Supreme 300 L Brushcutter requires a mixture of unleaded gasoline and high-quality two-stroke engine oil at a ratio of 40:1. Ensure the gasoline has an octane rating of at least 90.
To replace the cutting line, first disconnect the spark plug lead for safety. Remove the spool cover from the trimmer head, then take out the old line. Cut a new line to the recommended length, insert it into the spool, and wind it evenly. Replace the spool and cover before reconnecting the spark plug lead.
If the engine won't start, check the fuel level and ensure the fuel is fresh. Verify that the spark plug is clean and functioning. Check the air filter for blockages and clean or replace if necessary. Ensure the choke is set correctly and the primer bulb has been pressed.
The air filter should be checked and cleaned before each use. If operating in dusty conditions, it may be necessary to clean it more frequently. Replace the filter if it shows signs of wear or damage.
Regularly inspect the cutting blade for signs of damage or wear. Sharpen the blade when it becomes dull, and replace it if there are any cracks or significant damage. Always disconnect the spark plug before performing maintenance on the blade.
To adjust the carburetor, locate the adjustment screws on the side of the carburetor. Turn the screws slowly to adjust the idle speed and mixture. It is recommended to refer to the user manual for specific adjustment procedures and settings.
Excessive vibration may be caused by an unbalanced cutting blade or damaged spool. Check for debris in the trimmer head, and inspect the blade and spool for damage. Tighten any loose parts and replace any damaged components.
Always wear appropriate protective gear, including eye protection, gloves, and long pants. Ensure the working area is clear of bystanders, especially children and pets. Avoid using the brushcutter in wet conditions or near flammable materials.
Before storing, clean the brushcutter and remove any debris. Empty the fuel tank and run the engine until it stops to clear the carburetor of fuel. Store the brushcutter in a dry, well-ventilated area away from direct sunlight and moisture.