Posted 8/27/2025 15:12 (#11345532 - in reply to #11345463) Subject: RE: Serpentine belt issue. A/C compressor runs off the fan hub
Jewell County KS
I had the same issue with the same belt routing on a Cummins in a Massey combine. Replaced both crank and fan pulleys and put on a new Cummins belt every year and got along ok.
I agree with you.....not enough wrap on fan pulley for the load.
There was an update from Cummins that may have helped but did not solve the problem