Lofrans are right-handed thread. I guess by now you will need to order a new cap and a cpastan. Lofrans is an Italian company. They are very well made. Imtra in New Bedford, MA is one of their US reps I dealt with. Good people. You need to be patient. Ive relied on Lofrans Airon for 13 years. Very good Windlass. You need to lunbricate it annually otherwise it will seize. Menwhile on my
current boat, I just got my Ideal windlass off and it took few weeks. Penetrating fluid, heat, pry bars, etc, etc. And there is a step in
removal instructions where they suggest using C4 explosive. Obviously i didnt use it. But I did have a lot of patience. To give you an idea what the shaft might look like see pic below. Pretty much capstan, gipsy and cap were all seized to the shaft. Chances are, once you get that first cap off, there might be other layers to un-freeze. So be patient.