Using a small pokey tool remove the red buttonUse an 8mm socket or Phillips head to remove the 
stop-screw
Un-thread the tri knobRemove the head and clutch cup
Remove the dust cap with a prying tool. Alternate the sides for easy removal. If you pry too hard you can break the pins that secure it.
Remove the washers and bearings with a tool to avoid contamination
With a Phillips screwdriver loosen one side and then the next
The screws do not need to be removed.
When reinstalling make sure to tighten the screws evenly
Slide the grey plastic piece off. When reinstalling make sure the holes are perfectly lined up.