Had some noise and hunting of the Z axis so after some research decided to try to clean the motor out.

Got the motor out and the encoder cage off.

Took the 4 long bolts out from the pulley side of the motor but am stuck as to how to further take it apart for cleaning.

The "brush holder" for the lack of a better term is loose but it doesn't seem to want to come off.

Where do i go from this point?