What kind of mast does it have? My Challenger has a hollow style mast that is zinc plated. For that, I slightly spread apart the mechanism so it would slide past the end stop of the mast. I cleaned up and sprayed the mechanism, then had the mast zinc plated.
If the mast is the solid style, I believe it just gets painted silver. You wouldn't even have to disassemble it. Just re-spray the mechanism, move it to one end and spray the mast. When that's dry, move the mechanism to the other end and spray that side.