I'm having a real bad time with my 933-2829 130' modern turntable. I spent a few hours learning how to program the thing. I finally got it programmed and stopping at all service tracks. At this point I'm feeling pretty good. So I pull out my favorite steam locomotive on to the turntable. The turn table takes its time spins around and lines up with its stall. I run the loco in the round house and back out on the turn table. I then try to turn the turn table and it either twitches or just dose not move. So I pull the turn table checked the contacts. There in good clean shape. None are bent. So I then reinstall the turn table in the pit. Turn on the power, same wont move or goes just a tad and stops. So I try to zero it. It wont do that either.