Briggs & Stratton 40316x11B Parts Manual

To change the oil, first ensure the engine is off and cool. Remove the oil drain plug, allowing the old oil to completely drain into a pan. Replace the drain plug, fill with new oil as per the specifications in the manual, and check the oil level with the dipstick.
Check the battery connections for corrosion and ensure they are tight. Verify that there's enough fuel in the tank and that the fuel valve is open. Inspect the spark plug for wear or damage and replace if necessary.
Locate the air filter cover and remove it. Take out the air filter and clean it if it's a foam type by washing it with mild detergent and water. For paper filters, replace it if it appears dirty or clogged. Reinstall the filter and secure the cover.
Use clean, fresh, unleaded gasoline with a minimum octane rating of 87. Avoid using gasoline with more than 10% ethanol content to prevent damage to the engine.
Blades should be sharpened every 25 hours of use or at the start of each new mowing season to ensure a clean cut and efficient operation.
Check the operator's manual for the exact tire pressure specifications, as it can vary. Typically, the front tires are set to 14 psi and the rear tires to 10 psi.
To winterize, clean the tractor thoroughly, change the oil, add fuel stabilizer to the fuel tank, and run the engine for a few minutes. Remove the battery and store it in a cool, dry place. Cover the tractor to protect it from dust and moisture.
Stop the engine immediately and allow it to cool. Check for debris blocking the air intake or cooling fins, and clear any obstructions. Ensure the oil level is correct and that the fuel is fresh. Restart the engine and monitor it closely.
Ensure the blades are sharp and properly balanced. Check the tire pressure and adjust if necessary. Inspect the deck for levelness, and adjust the deck height settings as per the manual instructions.
Perform regular maintenance, including oil changes, air filter cleaning, and blade sharpening. Keep the tractor clean and stored in a dry place. Follow the manufacturer's guidelines for operation and service intervals.