Simplicity Yeoman 637 Owner's Manual
![Simplicity Yeoman 637 Tractor manual cover](/images/wdeyaixYUdxdMbQFfQIiKKeB/thumbs/thumb175x175.webp)
To change the oil, first warm up the engine to ensure the oil flows out smoothly. Turn off the engine and place a pan under the oil drain plug. Remove the plug and let the oil drain completely. Replace the drain plug and fill the engine with the recommended oil type and quantity as specified in your manual.
The Simplicity Yeoman 637 Tractor is designed to run on unleaded gasoline with an octane rating of 87 or higher. Avoid using ethanol blends with more than 10% ethanol content.
If your tractor won't start, check the battery connections to ensure they are clean and tight. Make sure there is fuel in the tank and that the fuel valve is open. Inspect the spark plug for wear and replace if necessary. Also, ensure the safety switches are engaged properly.
The air filter should be checked every 25 hours of use and replaced if it appears dirty or damaged. Regular replacement ensures optimal engine performance and longevity.
If your tractor is overheating, check the coolant level and refill if necessary. Clean the radiator and remove any debris blocking airflow. Ensure the fan is functioning correctly and inspect for any leaks in the cooling system.
To clean the mowing deck, first ensure the tractor is turned off and the spark plug is disconnected. Use a garden hose to spray off grass clippings and debris. For stubborn dirt, use a plastic scraper to avoid damaging the deck. Dry the deck thoroughly to prevent rust.
To adjust the cutting height, locate the height adjustment lever near the driver's seat. Move the lever to your desired cutting height position. Ensure both sides are set equally for even mowing.
If the transmission is not engaging, check the drive belt for wear or damage and replace if necessary. Ensure the transmission fluid is at the correct level and that the linkage is properly adjusted. Consult the manual for specific adjustment procedures.
For winter storage, clean the tractor thoroughly to remove dirt and debris. Change the oil and replace the air filter. Add a fuel stabilizer to the gas tank and run the engine for a few minutes. Disconnect the battery and store it in a cool, dry place. Cover the tractor to protect it from dust and moisture.
The recommended tire pressure for the Simplicity Yeoman 637 Tractor is typically around 10-14 psi for the front tires and 8-12 psi for the rear tires. Check your owner's manual for the exact specifications and adjust accordingly for optimal performance.