Ok, I’m an idiot. Sorry.
Of the procedures shown in the video a couple are similar.
The fascia that covers the motor(s) seems to have a 4” wide center piece that runs the width of the slide. The piece over the bed was loose at one end, so I pulled it forward to see behind. It seemed to have been stapled to framing behind it. It didn’t come away easily so I put it back in place. The manual (that basically covers every rig HR ever made) says the fascia should be held by Velcro or clips. Sure didn’t look that way, so I got nervous. HR doesn’t exist any more, so I was afraid of breaking something I might not be able to replace?
I better get you a picture of what I’m looking at.
