Hi- what you should do if all complete - is depress a small pedal roughly were your right heal sits on the foot plate - if it's not the then I guess the only way you can do is is look underneath at the release box - and see if you can physically move the bar that should have a small hole in the end for attaching the realease rod - this should pull the spring - pulling the plunger from the hitch frame - allowing you to drop it via the hydraulics - hope this helps -
1963 fordson new performance super major. And An array or fordson parts and pieces !