Has anyone had to change a belt yet. I got a new Belt that has a 1 year warentee so i thought i would throw it on but i couldnt spread the sheaves apart. How do you do this cuz if i push in and turn clockwise it wont move. It wont even move in when i push it. I just slid it over and rolled it on but now my defelction is way,way off i can almost touch the belt together in the middle. WTF is wrong?