Interchangeable three point hitch balls??

[gemzacons]

Does anyone know how you would change out these balls? We bought a JD 4520 used and it came with an extra set of hitch balls for a cat 0 hitch. I don't need them, but if I could put a cat two in there I could use the tractor to move equipment to mow, without getting the big machine out. Seems like you would maybe spin them a certain way maybe, but haven't been able to figure it out. Thanks for reading this and any advice!



"WHOEVER SAID YOU CAN'T BUY HAPPINESS FORGOT ABOUT PUPPIES"

 

[woodchuckie]

The bar on mine which the balls go on is removable by taking out a pin. The bar has a hole for the ball which goes through the hole in the bar and a nut goes on the bottom. You can put more than one ball on opposite sides and just flip it to the size ball you need.