Carla P,
Thank you for all your help. I just completely removed the case of the machine so I could see the belt. It has 2 belts and they are both fine. I was investigating farther and found the problem. It has a broken gear. It's a small one that connects with a larger one. When I manually turned the gear..........or should I say what's left of it........the feed dogs moved properly.
I'll check and see if I can get the get the part and repair it myself. If not I'll have to take it in and have it repaired. It'll be a couple of weeks before I can do that. In the meantime I have my Grandmother's sewing machine and I can use it.
Once again, thank you for all your help.