I have read several posts in many forums trying to fihure out why the Diverter arm on the top ramp of my Mousin Around would not stay open/closed, it worked and would try to reset but after about four trys on powerup it would quit trying. I took mine off and shot a quick video of my issues and what I did to repair it, as there are no good parts diagrams for this or video info on it. Another thing I did not mention in the video is the adjustment of the two nutz on the plunger arm, you can adjust these for travel of the arm, and length of the plunge so to speak, but mine were pretty good...anyhow, video for reference sake..