Wedico electrical system

[wedicotrucker]

I know this is a long shot, but does anyone happen to have the instruction manual for the wedico electrical system for the trailer? I think it's the 782?
It's the ine for the trailer. Trying to get my trucks back up and running after 11 years of sitting on the shelf.

When I plug the trailer into the truck, I have all the lights
But the servo the operates the loading ramps is not working. I've plugged another servo into it, and it also doesn't work. Wondering if I have something that isn't wired up correctly.