Remove the (4) Phillips 0 screws from the bottom of the case as pictured. Keep seperated as the 2 (Orange) in the plastic cover are shorter. Remove the plastic cover by sliding it out.

Slide a metal spudger between the ribbon cable and control body where pictured to release the adhesive.

Gently rock the upper case side to side while pulling the upper half straight from the lower half. Work the upper case free from the bearing and shaft. Watch that the cable doesn't re-attach itself. The bearing may stay in the upper case or on the shaft. If it's on the shaft, then remove it and set aside.