Raise your ram up maybe a inch ( to free rod from plastic square index). Then turn the turret manually either direction as you lift up and out. The turret should turn freely. Dont force it or you can screw up that small plastic index. If it's not free, simply raise the ram a little higher.
I looked everywhere and could not find the answer, i finally took the top part of the press apart and figured it out. Then i got back on ingo and saw shibumiseeker's post. haha.