In order to get the press out of the driveway and into the shop, I had to go at the key holding the flywheel assembly in place with a blow torch. I also tried using penetrating oil but that had negligible effects. I thought it might require a special tool, but after five or ten minutes with the propane torch I just pulled and pulled on it with a hammer and it popped right out.
Then, after gathering the neighborhood punks and layabouts, we carefully removed the flywheel and the shaft/axle that it was attached to and rolled it across the street on pipes. All in all a pretty smooth operation, and now the press is sitting comfortably in its new home.
Stray Lead 