Toro ProLine Hydro 52-inch 30438 Operator's Manual

To start the mower, ensure the parking brake is engaged, the PTO switch is off, and the motion control levers are in neutral. Then, turn the ignition key to the start position.
Regularly check the transmission oil level and change the oil and filter every 200 hours of operation or annually, whichever comes first.
Ensure the tire pressures are equal, check that the deck is level, and inspect the blades for wear or damage. Adjust as necessary.
Remove the blades from the mower, secure them in a vice, and use a grinder or file to sharpen. Ensure blades are balanced before reinstalling.
Run the engine briefly to warm up the oil, then drain it by removing the drain plug. Replace the plug, add new oil, and check the level with the dipstick.
Check the fuel level, ensure the spark plug is functional, inspect the air filter, and verify that all safety switches are engaged.
Replace the air filter every 100 hours of operation or annually, whichever comes first, or more frequently in dusty conditions.
The recommended tire pressure for this mower is 13 psi for the front tires and 15 psi for the rear tires.
Use the height-of-cut lever located on the mower deck to adjust the cutting height to the desired position.
Perform daily checks on the oil level, air filter, and tire pressure. Conduct more thorough maintenance, including oil changes and blade inspection, every 100 hours of operation.