Murray 42591x8A Parts Manual
![Murray 42591x8A Tractor manual cover](/images/nsvldyRQugaylIaajPTQYcTM/thumbs/thumb175x175.webp)
To start the Murray 42591x8A Tractor, ensure the parking brake is engaged, the PTO switch is in the 'off' position, and the throttle is set to 'choke'. Turn the ignition key to the start position until the engine starts. Release the key immediately when the engine starts.
If the tractor won't start, check the battery connections for corrosion or looseness, ensure there's enough fuel, verify the spark plug is in good condition, and make sure the safety switches are properly engaged.
Change the oil after the first 5 hours of use and then every 50 hours of operation or annually, whichever comes first. Use SAE 30 oil for optimal performance.
Maintain the front tires at 14 psi and the rear tires at 10 psi for optimal performance and safety.
To adjust the cutting height, locate the lever on the right side of the seat and move it to the desired position. Ensure the tractor is on a flat surface and the engine is off before making adjustments.
Before the mowing season, check the oil level, clean or replace the air filter, sharpen or replace the blades, inspect the belts for wear, and clean any debris from the deck and engine area.
To troubleshoot uneven cutting, check for proper tire pressure, ensure the blades are sharp and balanced, and confirm that the deck is level. Also, inspect for any obstructions or damage under the deck.
Use unleaded gasoline with an octane rating of 87 or higher. Avoid using fuel with more than 10% ethanol content to prevent engine damage.
To replace the spark plug, disconnect the spark plug wire, use a spark plug wrench to remove the old plug, and install a new one with the correct gap. Reattach the spark plug wire securely.
If the tractor vibrates excessively, check for loose or damaged blades, inspect the engine mounting bolts, and ensure the deck is not clogged with grass clippings. Tighten or replace any damaged components as needed.