u/Grab-A-Seat-Son

Please excuse how messy it is. I just got it second hand and haven't given it a proper clean yet.

I thought it had a slightly odd sound when turned on. Like it didn't spin correctly. I wanted to look at the burrs anyway, so I went inside. Now I can't decide whether it's spinning improperly or not.

I can see signs on both the top and bottom burrs that suggest they've met, but it only shows on one side of each, suggesting to me that they've been seated unevenly or something.

Does anyone here have any experience with the machine, and notice anything odd about the way it looks or sounds?