Contax ii not winding. Help!

Hello! I'm working on a contax ii.
The winding gear does not appear to be engaging. I believe it is the gear in the center of this photo that links to the shutter wind. Any suggestions? I cannot figure out where it needs to connect.

google: contax II repair manual: https://www.google.com/search?q=contax+II+repair+manual&ie=utf-8&oe=utf-8&client=firefox-b-1-ab
1st hit: http://elekm.net/zeiss-ikon/repair/start.html
4th hit: https://richardhaw.com/2018/04/15/repair-zeiss-ikon-contax-2/
I don't watch videos.
page 2 hit 2: https://uscamera.com/product/zeiss-contax-iia-iiia-service-manual-download/