Thanks for all the info! I spoke to the repairman at the shop where my Baby Lock is being repaired and he suggested that there is strain on the motor. He told me to oil the part that comes out to attach the belt and a couple of places inside the little holes on either end of the motor. I did that but it didn't help. I really wanted to do this by myself! My husband knows a bit about motors and wiring and said he is going to look at it. I will give him all your suggestions.