Start by removing the funnel by turning the knob from the lock position to the unlock position.

Remove the knob skirt by pulling it up from the knob gamp, then remove the two screws connecting the knob connector with a Phillips screwdriver.

Then extract the knob gamp from the bottom of the funnel by pulling it out.

Then pull out the two funnel clips, that connect the funnel to rest of the coffee grinder in lock mode, from the bottom of the funnel.