Pry off the 4 screw covers and unscrew the cover of the cylindrical rotating piece. (Please excuse the photo I took after putting everything back together)

Remove the short pin in the center, the long thin pin holding down the lid release slider, and the lid release slider. Keep these small pieces safe.

Pull off the rotating cylindrical piece by releasing it from the clips on either side. Watch out for the grease in the areas that get clipped in, as they attract dust and hair. If needed, you can clean the old grease and put on new grease when reassembling.