Right, Perthie, now we are in business. I want you to tap the top of that cotter, (which you obviously have, without the nut on) gently down, as far as it will go...that should release the inner clutch half from the shaft, and slide it off the PTO engine shaft. A good idea is to soak the cotter with Penetrene (ie. all around it) and tap gently away,,,once you get it moving, you are in business! wink
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin