Hello, I just bought a snow thrower model #551(2 stage) and I am trying to put it on an model #800 Cub. It hooks up to the tractor perfectly, but when I put the pto on, it run the thrower for about 5 seconds and then it throws off the belt. I went and bought another belt(2" shorter). Same thing happens. As I look at the pto and the bottom pulley on the thrower, it does not line up straight. The belt comes up from the bottom pulley on an angle. It's not much of an angle but I think it is enough to throw it off. Has anyone come against this kind of problem. Any suggestion would be helpful. I thought if I could just space out the pto, that would work but I don't know if you can do that. Maybe move the motor forward, again I have never done anything like that. I just want it to work.
Thank you in advance...................Frank