Hi Mark,In regards to the adjustment of your clutch. I'm assuming you're referring to turning the adjustment ring on the clutch itself. If that's the case, there is a chance the ring doesn't want to turn without some persuasion. An air hammer/air chisel is your best friend! We couldn't get ours to turn and my ex-diesel mechanic father-in-law told me that is what they had to use on all of the big rigs.Corey