Hi,
I've just 'restored' a Jernbolaget frameback. I didn't unpin it or anything, just gave it a good going over with 400, 600 and 800 wet and dry. The frame is loose and slides off easily, so much so that it actually moves a little when stropping. I'm wondering if I should tighten it, and how. I'm also, though, considering the benefit of it being easily removable for cleaning purposes.

What do you think? Tighten or nay? If so, how? A pair of pliers and cardboard to protect the frame?