2003 Manual say lube, dealer says no?
Hello, we recently purchased a well loved 2003 Qwest 10x from an individual. I'm trying to get the routine maintenance up to date, and, according to the owners manual that I downloaded, the master tube of the lift system requires greasing semi annually. I called my local Jayco dealer to inquire what kind of grease is recommended, and, was informed by them not to ever lube the lift system, that it isn't needed. So, which is it? I'm leaning towards following the owner's manual, but, still need to know which kind of lube is needed. I've serviced the hubs, and, used Mystik grease on them. They were pretty dry, which leads me to believe mechanical maintenance on this little gem was an afterthought.
Also, it has a dealer installed Coleman a/c unit. It's installed where the roof vent originally was, and, the roof has a noticeable slight sag in the immediate area of the a/c. Is this normal, should there be some sort of interior supports, or am I worrying over nothing?