I have an MTD Snow Blower. Model# 317E611D352. The auger cable broke. Ordered a new one and put it on. Now The belt jumps off after little use. Bought new belt from MTD (actually 2 belts,they come in pairs for some reason.) Even put new bushings. Belt Keeps jumping off. Adjusted the auger cable several times. Can anybody give me ideas as to why auger belt keeps coming off. Is it possible that the cover over the belts not being on could cause the problem? I just talked to someone that thought the cover somehow keeps belts from jumping. I had the cover off after putting new belt on.