Murray 31720x51B Parts Manual

Pages 23

Year 2023

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Murray 31720x51B Tractor Specification

The Murray 31720x51B Tractor is designed to deliver robust performance and reliability for residential lawn care. It features a powerful Briggs & Stratton engine, which ensures efficient fuel consumption and dependable power output. The tractor is equipped with a hydrostatic transmission, providing smooth and effortless speed adjustments without the need for manual shifting, enhancing user convenience and operational ease.

Its cutting deck spans a width of 42 inches, making it suitable for medium to large-sized lawns, and includes dual blades that offer a clean and precise cut. The cutting height can be easily adjusted through a range of positions, allowing for customization based on grass length and user preference.

For added comfort, the Murray 31720x51B Tractor includes an ergonomic seat with a high backrest, reducing operator fatigue during prolonged use. The steering wheel is designed for responsive handling, ensuring better maneuverability around obstacles and tight corners.

A durable steel frame construction provides long-lasting durability, while the tractor's compact design allows for easy storage and transportation. Additional features include a rear hitch for optional attachments such as trailers or spreaders, expanding the tractor's functionality beyond mowing.

Safety is a priority with the inclusion of features like an operator presence system, which automatically shuts off the engine when the driver leaves the seat, and an easy-to-reach brake pedal for quick stops. The Murray 31720x51B Tractor combines strength, versatility, and user-friendly operation, making it a reliable choice for maintaining residential lawns.

Murray 31720x51B Tractor F.A.Q.

How do I start the Murray 31720x51B Tractor?

To start the Murray 31720x51B Tractor, ensure the parking brake is engaged, the transmission is in neutral, and the throttle lever is in the 'Fast' position. Turn the ignition key clockwise to the 'Start' position until the engine starts, then release the key.

What should I do if the tractor won't start?

If the tractor won't start, check the battery connections for corrosion or looseness. Ensure the fuel tank is not empty. Inspect the spark plug for damage and replace it if necessary. Verify that the safety switches are functioning properly.

How do I change the oil in the Murray 31720x51B Tractor?

To change the oil, run the engine for a few minutes to warm it up. Turn off the engine and disconnect the spark plug wire. Remove the oil drain plug and allow the oil to drain completely. Replace the drain plug and fill with new oil according to the specifications in the manual.

What type of fuel is recommended for this tractor?

The Murray 31720x51B Tractor is designed to run on unleaded gasoline with an octane rating of 87 or higher. Avoid using gasoline with more than 10% ethanol.

How often should I sharpen the blades?

Blades should be sharpened at least once per mowing season, or more frequently if you notice uneven cutting or tearing of grass. Regular inspection after every 8-10 hours of use is recommended.

What should I do if the tractor's cutting deck is vibrating excessively?

Excessive vibration in the cutting deck could be caused by unbalanced or damaged blades. Check for debris wrapped around the blades or spindles. Inspect the blades for damage and balance, and replace if necessary.

How can I adjust the cutting height?

To adjust the cutting height, locate the height adjustment lever, usually positioned by the driver's seat. Move the lever to the desired cutting height setting, ensuring it's securely locked in one of the preset positions.

What maintenance is needed before storing the tractor for winter?

Before storing the tractor, clean it thoroughly and run the engine to empty the fuel tank or add a fuel stabilizer. Change the oil and remove the battery to store it in a cool, dry place. Inflate the tires to the recommended pressure and cover the tractor.

How do I replace the spark plug in my tractor?

To replace the spark plug, first disconnect the spark plug wire. Use a spark plug wrench to remove the old spark plug. Check the gap on the new spark plug and adjust if necessary, then install it and reconnect the spark plug wire.

What could be causing the tractor to overheat?

Overheating may be caused by a clogged air filter, low engine oil, or debris obstructing the air intake. Ensure the cooling fins are clean and the oil level is correct. Replace the air filter if it appears dirty or clogged.