Start tractor with pto lever all the way forward-has lift and no pto like it should but try to go to pto with lift and gears grind and you cannot move the lever to pto with lift position..today did more checking--pulled pto disengage lever then underneath tractor tried to move the L-shaped lever by hand that the cable connects to--I could not move it any more than what the lever is doing...so I guess this means it is not an adjustment thing..sounds like an internal thing to me---whatever is suppose to happen inside is not happening----does this sound like a clutch issue? does it mean splitting the tractor?(which I won't do-I will get rid of it and get something else)...Anything else to check?? Thanks