we have a troy bilt bronco that we can not keep a belt from motor to deck last about one hour then breaks. We have tried to level the pulleys but have not got it yet
When it breaks, is the belt hot, frayed, clean cut? These things cause belts to meet an early death. Wrong belt size, pulleys are bad, most likely center bearings if they wobble, idler/tensioner arm not moving smoothly. Are you using OEM or aftermarket belts, aftermarket belts may have a different pitch.
