Looking to remove my rear wiper arm because it is really rusty and I wanna hit it with a couple coats of spray paint. I pulled back the plastic cover for the narrow brass colored nut and loosened that all the way. Having no success after loosening that screw I decided to **** with that cover and cut it back so I could maybe see what was holding me back. No luck with that, so that is why I have sought more advice from the online experts. What am I missing?