How to remove the cover of a maytag dryer model SG 1000 stackable dryer?

My dryer decided to stop working. The power still works, and when i hit start it makes a humming noise and dosen't do anything. I know it could be a few different things, but i'm assuming it's the belt. I have tried to take the back cover off and remove all the necessary screws but i can't seem to get it off? Am i supposed to attack this situation from the front side? Stackable washers and dryers are a pain and would really appreciate some help for i'm not calling a repair man. Thanks in advance......