1.Make sure the top part of the conical burr is clean. lf not, please use the brush provided to clean the top part of the burr.

2.Align the unlock icon on the base with the arrow on the Coffee bean hopper.

3.Turn the Coffee bean hopper clockwise until the lock icon aligns with the arrow 

NOTE: lf the coffee bean hopper is not assembled properly, the coffee grinder won't work.