Found an issue last night

I was doing my first real carve last night on my Elite Foreman and I ran into an issue where the small teflon (I presume) bushing at the end of the Y-Axis ball screw (at the front) had somehow unwound and was 2 inches from the end of the ball screw. I noticed this after the carve was finished. (The carve came out fine other than a dumb design mistake on my part, but that’s how you learn, I suppose.)

Naturally, I tried to screw it back into place, but it feels like there are grooves in the Y-Axis that this bushing is supposed to sit in that prevents it from spinning and I did not want to do any damage to the bushing without asking you experts.

  1. Why would this happen?
  2. How do I fix it properly?

I’ve attached a picture of the piece I am referring to for reference.

This is a used machine that I know the history of for the most part, so I don’t suspect neglect or anything…but I definitely want to fix it properly and will do a full maintenance to ensure nothing else like this happens again.

As always, any advice you guys have is appreciated!