Toro DH 210 74570 Operator's Manual

Ensure the parking brake is engaged, the PTO switch is off, and the throttle is set to a mid-range position. Turn the ignition key to start.
Use unleaded gasoline with an octane rating of 87 or higher. Do not use E85 or other ethanol blends above 10%.
Change the engine oil after the first 5 hours of use, then every 50 hours thereafter or at least once a season.
Check the PTO switch and ensure it's in the "ON" position. Inspect the drive belt for wear or damage and replace if necessary.
Use the height adjustment lever located near the seat to set the desired cutting height. Ensure the tractor is on a flat surface when adjusting.
Regularly check and replace the oil, air filter, and spark plugs. Sharpen or replace blades as needed and inspect the belts and battery regularly.
Check the battery charge and connections, ensure fuel is fresh, and inspect the spark plug. If the issue persists, consult the manual or a professional.
Ensure tires are properly inflated and consider adding wheel weights or tire chains for better traction. Operate slowly on slopes.
Check for debris under the deck, inspect the blades for damage, and ensure they are properly balanced and tightened.
Clean the tractor thoroughly, change the oil, add fuel stabilizer, disconnect the battery, and store it in a dry, covered area.