A late welcome to the forum Checkride.
You may want to check the PROBLEM SOLVERS in
QT's # 3 it has many fixes of slide problems with broken brackets,motor problems and mechanics of the slide system.
You can also use the
Newmar search engine for info and all the links below in my signature have answers also for your Newmar.
Check the
TSB Link sticky top of forum for added info for your coach.
All slide information is in
QT's 1 & 2 and use new slide info in links.