448 to 4016 Snowblower Conversion

Hope I'm in the right forum,here,tried a search.I do believe I glazed my pto clutch on my 448,what do I have to do to get the snowblower to work on my 4016?We put it on the 4016 last year and twisted the belt so it would turn in the right direction,but everytime I got in heavy snow it would kick the belt off.Is there some kind of simple solution,looks like more snow on the horizon.Thanks.