Slider is stuck, what now?

Thanks, golf bears, and yes, laknox pegged it. Although there is a battery there with it, I didn't have any tools with me, but I plan on taking a fresh battery with me when I go back to get it/fix it. To be honest, my wife and I drove the 1 1/2 hours to check it out, and I was ready to do a little experimenting while I was there, but the park "helper" followed me around like a puppy making all kinds of suggestions to help (one of which was to use his Bobcat to push the slider back in...um, no, not on fiberglass, but thanks anyway). But I thought I'd try that first, then go the manual route and crank it in if I can. I once was worked at a truck repair shop and learned a little about rebuilding cylinders and working with hydraulics, and have torn apart a small hydraulic motor/pump for a convertible, so I'm curious as to what's under that panel. I'll absolutely report back when I find out more. But I want to wait till I've got my ducks in a row before I make that long drive to Illinois again.