Toro 21-inch 22178 Operator's Manual
![Toro 21-inch 22178 Mower manual cover](/images/hrZnLKHtPegswZUNJqwhujvw/thumbs/thumb175x175.webp)
Use SAE 30 oil for temperatures above 32°F (0°C) and SAE 10W-30 for temperatures below 32°F (0°C).
It is recommended to sharpen the blade every 20-25 hours of mowing or at least once per mowing season.
Use a garden hose to wash out the grass clippings and debris. Ensure the mower is turned off and cool before cleaning.
Check the fuel level, spark plug connection, and air filter. Ensure the safety handle is engaged.
Check if the blade is dull or damaged. Also, make sure the cutting height is set correctly and the deck is clean.
To adjust the cutting height, move the height adjustment lever on each wheel to the desired position.
Ensure the tires are properly inflated and consider adjusting the cutting height for optimal performance.
Check for any debris caught in the blade, and inspect the blade for damage or imbalance. Tighten any loose parts.
Replace the air filter every 25 hours of use or once per season, more frequently in dusty conditions.
Empty the fuel tank, clean the mower thoroughly, and store it in a dry, cool place. Consider removing the battery if applicable.