[Jack in Alaska]

I drove down from Alaska and am at my MS in Washington.
Today I got under the bed, removed all of the "stuff" and the subfloor panels. I found a shiny nut laying on the carpeting. MS did not put that there as an extra. Upon looking around I found that it came off of the roller shaft that is inside the channels that make up the sliding mechanism. The roller was lose and flopping around. When going in or out the roller would bind up causing the problem. I put the nut back on, tightened it up as well as the one on the other side as it was almost off.
Now the bedroom slide glides in/out flawlessly and quietly.
Saved some $$$$ by doing it myself.
I recommend others check their slide under the bed and tighten up the bolts. 3/4" nut.
On our way to Arizona now and thinking good thoughts about my neverlubes.