I need serious help I have no Idea....I change the pulley that is the one that rides the belt and does not have a blade nor the one that's on engine. my problem is that it keeps damaging the and eating up the belt. I have a scag sw48. and I just don't know what to adjust anymore. I see the belt riding on bottom and not in the center. what can I do please help me this is the 3rd belt and at 35 dollars per belt it is going to take me to the poorhouse.