Hey folks, I could use a hand here. Occasionally, on our 2006 DMV 3016, the tool carousel/umbrella doesn't want to return home after a tool change. It goes slowly and then picks up speed or sometimes it doesn't even get going. You can give it a shove to get it going and then it returns. It may work well for a few cycles and then it sticks again. We have cleaned and lubed all the running surfaces and I am at a loss to explain it. It always comes forward with no issues. Ideas?