Step 5: Clean the undercarriage

Clean the undercarriage of the mower, scraping away debris with a putty knife
Photo: Kenneth Chen
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Use a putty knife and wire brush to scrape off the grass and mud caked on the mower deck. This prevents rust, clears the passageway to the discharge chute, and allows the aerodynamics of the deck to work as designed. With the deck cleaned, reattach the sharpened blade. Once you've finished and can turn the mower upright, fill the oil tank with fresh SAE 30 or 30-weight oil, and recycle the used oil at a service station. Don't use a thicker oil, such as 10W-40.
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    Tools List

    • gloves
      Gloves
    • socket wrench
      Socket wrench
    • putty knife
      Putty knife
    • Wire brush
    • Nut screwdriver
      Nut screwdriver

    Shopping List

    1. Fuel stabilizer

    2. SAE-30 oil

    3. Pan
    for emptying old fluids

    4. Tarp
    to ensure quick clean-up after emptying old fluids

    5. Filter
    new paper or sponge filter to replace the old one

    6. Spark plug
    to replace old one, and guarantee a smooth start come next spring