My 3010S will not engage pto, I have checked pto clutch freeplay and it is within spec. I have bypassed Pto starter lock out, when I start tractor the Pto will not disengage with Pto clutch in or out. With engine off I can move pto with engine in gear or out of gear with my hand. Is there a easy fix for my problem or will I have too split tractor?