Welcome to the irv2 family! We are presently at Evergreen park RV Resort in Dundee, OH for our annual rally and reunion. This means responses to your post may be lighter than normal.
http://www.aero-rv.com/ownManual.php
contains a pdf download for adjusting slide mechanisms, just locate your brand and begin the download. I wouldn't use anything sticky or greasy on the mechanism, it combines with road dirt and grime forming a crude grinding compound. I use "Dri-Slide", a quick-drying graphite compound. There are other speciality products made for this purpose.