Reply To: Fix / replace Graves index wheels? › Forums › Faceting Machines › Fix / replace Graves index wheels? › Reply To: Fix / replace Graves index wheels? March 15, 2020 at 6:01 pm #6257 gemmakermzParticipant @gemmakermz i agree with alan on that cleaning. i had problems on my ultra tec as well, it didn’t seem like i was seated proper, ended up using a brush on both the gear and the locking gear to get a secure mating.