HRX217-2263026
MAGA-2263026
This drive works fine but the right wheel will not spin backwards independently. In other words, if the machine is off, or on for that matter, and you back up and try to move your body to the right, everything is fine. But if you try to go left, the right wheel drags. I'm guessing there's some sort of ratcheting mechanism in the right wheel that has failed?