Crumar Multiman-S / Orchestrator Sustain/Swellpedal

Hello guys

Does anyone know how the sustain/swellpedal of old crumar instruments (im my case a multiman-s) is wired? i’m having trouble trying to make it work and cant find the schematics anywhere…

Thanks so much for your help!

The service manual with that information can be downloaded here;

Did you ever figure this out? I’m trying to wire a brass pedal from scratch and not finding enough info! I do have the pins and the voltage from the schematic. Let me know if you can help, thanks!