Lawn tractors make short work of mowing the lawn and working the garden. The trade-off for the increase in convenience is periodic maintenance. Lawn tractor tires are one of the components occasionally requiring repair or replacement. A puncture or similar tire damage makes replacing the tire rubber necessary.
Park the lawn tractor on a hard level surface. Set the brake on the tractor and chock the wheels on the opposite end of the tractor. Doing so will prevent the mower from rolling off the jack or blocks used to lift the mower.
Place a floor jack under the tractor, near the damaged or flat tire. Jack up the lawn tractor until the tire is clear of the ground.
Remove the axle dust cap from the center of the tire's wheel. Beneath the dust cap is a snap ring fixing the wheel onto the axle.
Remove the snap ring with a flat-head screwdriver by prying it off the tip of the axle. Use care not to lose the snap ring. With the ring removed, slide the tire and wheel assembly off the axle, and lay it flat on the ground or floor.
Release all remaining air out of the tire by depressing the valve stem inward with a screwdriver. After releasing air, press the tire downward simultaneously on opposite ends of the rim. This will release the tire from the rim.
Insert a wide flat-head screwdriver between the tire bead and wheel rim. Pry the tire outward over the top edge of the rim. Rotate the screwdriver around the perimeter of the wheel to remove one-half of the tire.
Turn the tire and wheel assembly on its side and pry the other half of the tire off the rim.