Hi all I got a refurbished Saeco Profi from my father as a housewarming gift because it has been our family favorite machine, used for over 20 years. Grinder was bound and I found a replacement online. Everything is working correctly but I am unable to twist the bean hopper to adjust the grind size. My last grinder although not functional allowed me to twist the top of the drum and you would hear little clicks as it settled into different grind positions. Any info would be greatly appreciated. See pics attached. Thank you! {image} {image} {image} {image}