Was in my mother in law’s closet, looked like it had been in a dusty old barn for years. Anyway I asked her if I could take it home and clean it up, maybe get it to working again. 2 problems I can’t solve, 1. Hammer falls when you close the bolt unless you put it on safe first. Works fine after you close the bolt, then take safety off to fire. 2. There is a piece on the bolt that drops down and blocks it from opening. Something is missing that holds that piece up. See photos. Any suggestions are more than welcome.