I bought a used Woodtek 25" Dual Drum Sander a year ago and have not been able to use it yet. Does anyone here know anything about the conveyor system? It will turn for a few turns then it will stop, then maybe start up again for a spin or two, then….. well you get the idea. The brushes are still good, I've cleaned and polished on them and actually once that gave me some usage, but no more. I even replaced the switch and mother board to no avail. The drums turn consistently at variable speeds. If anyone has one of these machines, please check in with me. I called the Supply company from whence it came and they tried to be helpful, but still left me in this quandry.