Welcome to the forum and irv2 Roy.
Here is a link
to give you TSB, BROCHURES , OWNERS GUIDES and other info for your coach.
Here is a thread
on the slide your talking about and all the links below in my signature have more info for your coach.
It may not be your rollers but things described in the thread, make sure something is not caught under slide.
Good luck enjoy the forum and safe travels.