Today, I tried to dig into a pile of loam, but my tractor just couldn't do it. I then tried to go up a slight incline, but the tractor just didn't move. Thinking that it might be low on hydraulic fluid, I added a little to bring it up to the full mark. It took only a pint, not enough to make a difference. I was totally baffled and thought that the transmission had gone bad. A neighbor stopped by while I was having these problems and he noticed that the tire was staying stationary, but the rim was spinning inside of the tire. The tires are filled with the non toxic "beet juice" known as Rim Guard. . I put additional air into the tire hoping to seal the bead, but it didn't help. The tire isn't leaking, but the rim justs spins on the tire bead. Any suggestions how to remedy this problem? thanks