The 25 RKS looks like it has a "sofa slide", similar to mine. The slide is not flush with the floor, but sits up a foot or so above the floor. If that be the case, then the hex drive is probably the way you would manually operate the slide. You can unscrew the front trim panel from the sofa, and then get to the drive. I took off my trim panel, and used a hole saw to cut an access area in the trim panel. Forturnately, I have never had to manually operate the slide. I did try it to see how it worked, and it takes a bunch of turns to make that puppy move much at all.
Here is the directions on the Lippert sofa slide just in case you have that model: http://www.lci1.com/OwnersManuals/Sl...0Slide-Web.pdf
It does say to disconnect the electric before attempting to operate the slide manually.
Chap , DW Joy, and Fur Baby Sango
2017 F350 Lariat CCSB, SRW, 4x4, 6.7 PS
2017 Grand Design Reflection 337RLS