Petrol Lawn Mower Maintenance Guide
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Regular maintenance of your petrol lawn mower will ensure it operates efficiently and lasts for many seasons. By following this guide, you can prevent common issues and enjoy a healthy, well maintained lawn.
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Safety First
- Ensure the mower is off: Always turn off the engine and disconnect the spark plug before performing any maintenance.
- Wear protective gear: Use gloves and safety glasses to protect yourself during maintenance tasks.
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Regular Cleaning
- Clean the Deck: After each use, remove grass clippings and debris from the mower deck. This prevents rust and ensures optimal cutting performance. Use a garden hose to rinse off the underside of the deck after mowing to help prevent grass buildup. Allow it to dry thoroughly.
- Clean the Motor: Clean the mower with a soft brush or a cloth instead of a pressure washer to avoid damaging sensitive parts.
- Clean the Airfilter: Brush or blow it clean a paper element or wash a foam filter and replace the air filter if necessary.
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Engine Maintenance
- Change the Oil:
- Check the oil level before each use.
- Change the oil after the first 5 hours of operation and then every 50 hours or at the beginning of each season.
- Use high-quality oil that meets the manufacturer’s specifications for best results.
- Always check the oil level while the mower is on a flat surface for accurate readings.
- Suck or tip the old oil out.
- Change the oil filter if it has one.
- Replace the Spark Plug:
- Inspect the spark plug every season. Replace it if it’s worn or fouled.
- Husqvarna Tip: Choose a spark plug that matches your mower’s specifications for optimal performance.
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Blade Maintenance
- Sharpen the Blades:
- Sharpen the mower blades at least once a season or more frequently if mowing in sandy conditions.
- Consider using a professional sharpening service for optimal results.
- Always remove the blade before sharpening, and ensure the edges are even to promote a clean cut.
- Balance the Blades:
- After sharpening, ensure blades are balanced to prevent vibrations and uneven cuts.
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Fuel System Maintenance
- Use Fresh Fuel:
- Use fuel that is no more than 30 days old to prevent stale fuel issues.
- Add Fuel Stabilizer:
- If the mower will sit unused for a while, add a fuel stabilizer to prevent gumming and clogging of the fuel system.
- Always store fuel in a clean, sealed container.
- Only use 91 octane fuel as it will reduce the risk of fuel-related issues.
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Tire and Wheel Maintenance
- Check Tire Pressure:
- Maintain proper tire pressure as recommended by the manufacturer for optimal performance.
- Inspect Wheels:
- Ensure wheels are properly lubricated and free of debris.
- Regularly check the wheel height adjustments to ensure even cutting.
- Inspect the wheel bearings for wear and lubricate them as needed to ensure smooth operation.
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Seasonal Storage
- Prepare for Storage:
- At the end of the mowing season, clean the mower thoroughly.
- Change the oil and spark plug, and add a fuel stabilizer or run the mower until it runs out of fuel.
- Store Indoors:
- Keep the mower in a dry, sheltered place to protect it from the elements.
- Use a mower cover to protect it from dust and moisture.
- Store the mower upright to save space and reduce the risk of leaks.
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Troubleshooting Common Issues
- Hard Starting: Check the fuel, spark plug, and air filter.
- Uneven Cutting: Inspect and sharpen the blades, and check the tire pressure.
- Loss of Power: Clean the air filter and ensure fresh fuel is being used.
- If the mower vibrates excessively, check for loose bolts.
- Ensure the throttle and choke settings are correct for the starting conditions.
Questions and Answers
Q: What specific tools should I have on hand for lawn mower maintenance?
A: Essential tools include a spark plug wrench, oil filter wrench, blade sharpener, and a cleaning brush. You may also need a fuel stabilizer, air filter cleaner, and a tire pressure gauge.
Q: How can I tell when my lawn mower blades need sharpening?
A: Signs include the mower tearing grass instead of cutting it cleanly, visible nicks on the blades, or an uneven cut across the lawn. Regularly checking after every few uses can help maintain blade sharpness.
Q: What are the signs that my petrol lawn mower might need professional servicing?
A: If the mower is hard to start, runs inconsistently, produces excessive smoke, or makes unusual noises, it may need professional servicing. Additionally, if regular maintenance doesn’t resolve issues, a technician can diagnose deeper problems.