Opened my kitchen slide and heard crunching, like wheels running over sand. I didn't find anything on the floor when if was fully opened so I was wondering if there are wheels under there and if it is possible to get to them some how to lube them? Didn't hear any noise when I retracted the slide.
No wheels that I'm aware of ... the slide just glides across the carpet and settles down in a pocket lined with teflon or similar. We had a small glass left by one of our recliners get caught between the wall and the slide facia while extending slides once ... made a terrible noise.
There are gears under the slide. The slide frame rolls over them when going in and out. They recommend using a dry lube. Not a grease to lube them.
Available at Walmart. Mine tend to squeak when they want attention.
You can see them from the under side of the slide.