I just received another Thiers Issard 69. This one is in almost shave ready condition, so I only cleaned with water, spritzed it with aerosol Clippercide and gave it a quick once over with Simichrome to determine the amount of build-up that was not clearly patina. It passed my once over, but noticed there was a somewhat rough feeling at the juncture of the blade and the frame.

So the question is: should the screw be removed with the blade for cleaning?

Should I soak it in something to help break the bond?

TIA