Welcome to the forum. I am not familiar with your coach at all, but if you have no access to the slide drive mechanism from below then check inside the coach under the couch or other furniture in the slide (for access panels). You may have hydraulic or electric slides so I am attaching a 2007 Four Winds owners manual (close years sometimes yield similar build info).....refer to section 6 for basic descriptions of both slide systems......you might be able to figure out what you have and where the drive systems are located. Sometimes the control panel for the slide is marked with the "manufacturer name" like HWH; and then go to their web site to see if you can still get info....or call their tech support for assistance. Of course there may be folks on this forum that have your exact coach that can jump in and help as well.
https://www.cruiseamerica.com/Cruise...ers_Manual.pdf
Good luck.