u/Speedy-sewer

I have a Pfaff 130 that I picked up at the Habitat for Humanity Store. It had a brand new motor on it. I took it for a good professional cleaning and oiling. When I got it home, it sews well but I noticed that the motor got very hot while sewing. So hot that I stopped sewing with it. I know nothing about the motor, but the service technician didn't say anything about it being the wrong motor or anything. HELP! I want to love this machine, but not if I can't sew with it for fear of fire. Thanks