If your projector has a focus motor in it, then this is the kit for you. This kit works with the following models of Kodak Carousel Slide Projectors 750, 750H, 760, 760H, 800, 800H, 850, 850H, 860H and Ektagraphic AF-1, AF-2, AF-3 and B2 models.This Kit contains 1 Link, 1 lock pin, 1 Focus Motor Gear and 1 Gear Next to Focus Motor Gear. The most common cause for the failure of the slide tray to advance or reverse is the breakage of this small Link and focus motor Gears. Download online repair manual from the provided link comes with Repair kit. Also watch youtube videos to how to repair your Kodak Carousel Slide Projector from this link: https://www.youtube.com/results?search_query=Kodak+Carousel+Slide+Projector+repair