Simplicity 1690491 7117H Parts Manual

Ensure the tractor is in neutral, press the brake pedal, and turn the ignition key to start the engine.
Check the battery connections, ensure there is fuel, and inspect the spark plug for any issues.
Change the oil every 50 hours of operation or at the beginning of each season.
Use SAE 30 oil for temperatures above 32°F and SAE 5W-30 for temperatures below 32°F.
Check if the blades are sharp and balanced, ensure the deck is level, and adjust tire pressure if necessary.
Clean the mower deck after each use, check for any debris, and ensure the blades are sharp and secure.
Check transmission fluid levels, inspect drive belts for wear, and adjust the tension if needed.
Keep the terminals clean, ensure the battery is fully charged, and disconnect it if storing the tractor for extended periods.
Clean the tractor, change the oil, add fuel stabilizer, and store it in a dry place. Disconnect the battery and cover the tractor.
Use the height adjustment lever located near the seat to set the desired cutting height.