The 321RSTS Bedroom Sideout is a Shwintec. The slide that Buddy Ray is talking about is your Dinette slide.
The tech at my PDI said that on the outside towards the top on each side there is a chrome colored retention screw that must be taken out and then pull back the rubber seal and you should be able to lift the motor up and disengage the motor. Do this on both sides and you should be able to push the bed in by hand. Here is a link to the manual. http://www.lci1.com/assets/content/s...ting-Guide.pdf
I've never had to do this so I don't know how easy it is to do.