Noisy Slideout???

[WCT]

This is the first Trailer I have owned with a slide-out. Mine is noisy when I extend or retract it. The tracks are clean and the slide seems to function properly, just noisy, ie, squeals, etc. Is that normal and do I need to just stop worrying?

[Rammer]

I would think as long as the slide does not appear to be labouring while it moves you should be okay. My slide out is very loud, i was told thats how i know its working.