I have yard Machines (mtd) 5horse 22" snow blower. I took the machine out to clean my driveway after the blizzard we had in NH yesterday, it was working fine and then suddenly it stopped throwing snow. Took off the belt gaurd and the auger belt had come off. I took the bottom cover off and found a giant mouse nest but the belt was fine not broken or severely worn. I put it back on and put the covers back on the machine worked fine. All of a sudden the blower started rattling and the belt came off again and was broken this time. Does anyone know why and how I can make sure this doesn't happen again. I have orderd a new belt and don't want to break this one too.