Murray 312004x68A Parts Manual

To start the Murray 312004x68A Tractor, ensure the parking brake is engaged, the PTO is disengaged, and the throttle is set to a mid or high position. Insert the key into the ignition and turn it to the 'Start' position until the engine fires, then release.
Use SAE 30 motor oil for temperatures above 32°F and SAE 5W-30 for temperatures below 32°F. Always check the oil level before each use and maintain it according to the manufacturer's specifications.
Change the oil after the first 5 hours of operation and then every 50 hours or at least once per season. Regular oil changes will help ensure optimal performance and longevity of the engine.
If the tractor won't start, check for fuel, make sure the battery is charged, and inspect the spark plug for fouling. Ensure all safety features are properly engaged and consult the user manual for further troubleshooting steps.
To replace the blades, first disconnect the spark plug wire for safety. Lift the mower deck and secure it. Use a wrench to remove the blade bolt, replace the blade, and tighten the bolt securely. Reconnect the spark plug wire after completion.
The recommended tire pressure for the Murray 312004x68A Tractor is typically around 10-14 psi for the front tires and 8-12 psi for the rear tires. Always consult the user manual for exact specifications and check tire pressure regularly.
To store the tractor for winter, clean it thoroughly, change the oil, and top off the fuel tank with a stabilizer. Disconnect the battery, inflate the tires to the recommended pressure, and store the tractor in a dry, covered area.
Adjust the cutting height by using the lever located on the side of the tractor. Move the lever to the desired cutting height position, ensuring it locks into place for even mowing.
Excessive vibration can be caused by unbalanced blades, loose parts, or debris caught in the mower deck. Inspect and clean the deck, tighten any loose components, and ensure blades are balanced and not damaged.
Uneven cutting can result from improper tire pressure, dull or damaged blades, or an uneven deck. Check tire pressure, sharpen or replace blades, and adjust the deck height to ensure it's level.