Place the display back into the frame and screw in the two screws that hold it in place.

Put the conical burr in place making sure it sets on the drive pegs of the new impeller properly.

Place the washers on while maintaining their original order. ie: Flat washer on the bottom, split washer on top.

Tighten the reverse threaded 10mm nut.

Check the grind knob to be sure it has full range of motion.