McCulloch M51–550CMDW Spare Parts List
![McCulloch M51–550CMDW manual cover](/images/dubXWdrstlxlxscpEDRwNShh/thumbs/thumb175x175.webp)
To start the McCulloch M51–550CMDW lawn mower, ensure the fuel tank is filled and the oil level is adequate. Press the primer bulb 3-5 times, engage the safety lever, and pull the starter cord briskly.
Use unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol-blended fuels greater than 10%.
Change the oil every 25 hours of use or at least once a season to ensure optimal performance and longevity of the engine.
Uneven cutting may be due to a dull or damaged blade, incorrect wheel height settings, or an uneven lawn surface. Check and sharpen the blade, and adjust the wheel height as needed.
To clean the mower deck, ensure the mower is off and disconnect the spark plug. Tilt the mower on its side, and use a scraper or brush to remove grass clippings and debris.
If the mower won't start, check the fuel level, ensure the spark plug is connected and in good condition, and confirm the air filter is clean. If issues persist, consult the user manual or seek professional assistance.
For winter storage, run the mower until it runs out of fuel, or add a fuel stabilizer. Clean the mower thoroughly, change the oil, and store it in a dry place. Disconnect the spark plug for added safety.
To adjust the cutting height, locate the height adjustment levers on each wheel. Move the levers to the desired position to achieve the preferred cutting height.
Regular maintenance such as cleaning the air filter, sharpening the blade, changing the oil, and using the correct fuel can significantly enhance mower performance.
Excessive vibration can be caused by a damaged or unbalanced blade. Inspect the blade for damage and balance it properly. If the issue persists, consult a professional technician.