Toro Wheel Horse 520Lxi 73580 Setup Instructions
![Toro Wheel Horse 520Lxi 73580 Tractor manual cover](/images/iihjykZAEAjgfAhRVKhptIRn/thumbs/thumb175x175.webp)
To change the oil, first run the engine for a few minutes to warm it up. Turn off the engine and locate the oil drain plug. Place an oil pan underneath and remove the plug to drain the oil. Replace the plug, remove the oil filter, and install a new one. Finally, fill the engine with new oil as specified in the owner's manual.
The Toro Wheel Horse 520Lxi is designed to run on unleaded gasoline with a minimum octane rating of 87. Avoid using ethanol blends higher than E10 to prevent engine damage.
If your tractor won't start, check the battery connections and ensure they are clean and tight. Inspect the fuses and replace any that are blown. Verify the fuel level and ensure the fuel valve is open. If all else fails, the starter or ignition switch may need professional inspection.
Regular maintenance includes checking the oil level before each use, changing the oil and filter every 50 hours, inspecting and cleaning the air filter every 25 hours, and replacing the spark plug annually. Refer to the owner's manual for a detailed maintenance schedule.
Ensure the blades are sharp and balanced. Adjust the cutting height according to your lawn's needs and regularly clean the underside of the deck to prevent grass buildup. Proper tire inflation can also help maintain an even cut.
Check the engine cooling fins for debris and clean them if necessary. Ensure the radiator is clear of obstructions and the coolant level is adequate. Also, inspect the fan belt for wear and tension.
To replace the drive belt, first remove the mower deck. Release the tension on the belt by adjusting the idler pulley, then remove the old belt from the pulleys. Install the new belt following the routing diagram in the manual, reapply tension, and reinstall the mower deck.
Check the steering linkage for any obstructions or damage. Lubricate the steering components as recommended in the owner's manual. Inspect the tire pressure and adjust as necessary. If the problem persists, it may require professional servicing.
To winterize your tractor, clean the exterior and underside thoroughly. Drain the fuel or add a stabilizer to prevent fuel degradation. Change the oil and filter, and remove the battery to store it in a cool, dry place. Cover the tractor to protect it from dust and moisture.
Symptoms of a failing spark plug include difficulty starting the engine, poor fuel efficiency, engine misfires, and reduced power. Regularly inspect and replace the spark plug according to the maintenance schedule to prevent these issues.