All ActivityMost RecentMost LikesSolutionsRe: Breakdown InformationI noticed that a few others with a 2007 Spartan K2 chassis were having issues with the fan belts coming off. I too experienced this with my 2007 Newmar Mountain Aire which resulted in a tow. I found out from the Spartan repair center that there is a service bulletin out from Spartan addressing this issue. The fix is a five hour rebuilding and reconfiguration of the pulleys on the fan clutch. Apparently there are some serious alignment issues. Anyone with a new K2 should check to see if this bulletin applies to them. Don't find out the hard way like I did.