Toro 21-inch 26621B Operator's Manual

Ensure the mower is on a flat surface, check the oil and fuel levels, engage the safety lever, and pull the starter cord quickly and firmly.
Use SAE 30 oil for optimal performance in warmer temperatures, or SAE 10W-30 for varying temperature ranges.
Sharpen the blade after every 25 hours of use or at least once a mowing season to maintain cutting efficiency.
Check if there is fuel in the tank, ensure the spark plug is connected, verify the air filter is clean, and inspect the carburetor for blockages.
Turn off the mower, disconnect the spark plug, use a garden hose to wash off grass clippings, and dry thoroughly to prevent rust.
Check if the blade is dull or damaged, adjust the mowing height settings, and ensure the grass is dry before mowing.
Regular maintenance, such as changing the oil, cleaning the air filter, and keeping the blade sharp, can improve fuel efficiency.
Drain the fuel, change the oil, clean the mower, remove the spark plug, and store it in a dry place to prevent corrosion.
Locate the height adjustment levers on each wheel, choose the desired height setting, and adjust each wheel to the same level.
Inspect the blade for damage or imbalance, check the engine mounts, and ensure all bolts and screws are tightened properly.