I just bought an old 24, and while it shoots both the 410 and the 22LR just fine, the extractor does not lift the spent 22 case up and out where I can remove it. I think I need to replace either the extractor or the spring or both. Looking at the parts diagram, it appears that there is just one screw that I have to remove to do the replacement. Am I correct? If so, is there anything I need to watch out for when I replace the two parts? Thanks!!
Definitely take out the .22 extractor and spring. Clean the heck out of both with CLP or similar, and then wipe them thoroughly. The hole in the receiver is really small. You can put a few drops of Isopropyl alcohol on the hole and put the shaft of a cotton swab (without the cotton) in the hole and push it in and out a few times and the blow it out with compressed air. Do that 2 or three times. You can also find a drill bit that just fits and spin it with your fingers to loosen the crud. When you put the spring and extractor back in, you can put a BB in the hole first for stiffness. Make sure when you put the retainer screw in so that you bottom it out softly and then back it out enough so the extractor is captured, but moves freely. It should work better, but occasionally casings may stick (usually when you shoot multiple shots). It seems to just be "a thing" with the spring loaded extractor. it should pop out easily if you push on the extractor when this happens. Be careful not to "lube" the extractor. .22s are kind of dirty and oil traps dirt and dust. If you need the spring, try Numrich (gun partscorp.com), or Jackfirst (https://jackfirstinc.com/). Numrich allows you to look for a part by number from an exploded diagram. However, JackFirst might be cheaper.