Back the adjustment limiter "stop-screw" out HALF WAY. Leaving it partly in insures we don't lose track of what hole it belongs in!

The stop-screw should be out just enough that you can rotate the grind adjuster freely past the stops.

Rotate the grind adjuster clockwise (second pic) until the upper burr holder cylinder backs all the way out.

Remove the upper burr holder, noting the slot orientation for later.