Combines 2366 engine ruining fan belt

I have a Magnum doing the same thing. I was told that the alternater needs to be adjusted to a different angle so that it runs in line with the fan pulley. I am not sure if you can get a updated mounting bracket or what you have to do. Run this by your service manager and let me know if this works

I had that happen on a magnum, no one could figure it out, changed the tensioner and idler as suggested by the dealer. After a year replacing belts, we finally replaced the crankshaft pulley, that stopped the belt eating. Now we just replace the belt during winter service.

my 1660 w_cummins 8.3 does the same thing i replaced the belt twice. the last time it chewed up the edge of the belt but the rest of it was ok . its been on there going on two seasons like that and it doesn't get any worse. should i be worriedIJ

Got a friend that's a Cummins mechanic,says it is fairly common.As long as the belt doesn't completly shred,he says to run it.I have a 5.9 engine that does the same thing,about 2 ribs of the belt,everything lines up.