I have only had my motorhome a little over a year now. It has two slides, one big and one little. Last year when pulling my smaller bedroom slide in so we could leave for our trip it would not move, however I could hear the little motor running. Of course I hit the panic button and had a small meltdown. After a very brief search I learned that it was most likely my shear pin. I was able to push the slide in and out for this trip, but had to have it replace. Not expensive but not what I wanted to spend my money on.
I began researching maintenance for slides. What I have learned so far is for my type of slide I should use a dry lube on the slide bar that is located under the slide out. This is the bar that has the teeth/gears on it. The dry lube will decrease friction and will not collect dust and dirt. Do not use regular grease or a WD40 as it will collect dirt etc. I was not certain how to use the dry lube. For example, how much to put on and should I wipe it off after applying or leave it. I choose to put a pretty fair amount on and just leave it. This caused my slide to actually bind a little bit and when sliding it in and out it made the slide bounce a little. Of course this caused me to freak out a little thinking I would break another shear pin. What I learned, at least for my MH, was to put a light coat on and gently wipe it.
I also learned that using carnauba wax on the slide out walls will help decrease friction. I do recall they specifically said use a wax with carnauba in it.
The third thing was to use a seal conditioner on the seals. Again there was a bit of a learning curve. What I did, right or wrong, was spray the conditioner on the parts of the seal I could access and then wiped it gently to take off any excess.
I used a product called "Slidout" dry lube and "Slideout" seal conditioner. It was not difficult to do, but as with anything the first time doing something you tend to make it more difficult than it needs to be. There are some videos on the web about. Good Luck
Todd & Brandie
2003 32' Fleetwood Storm, Triton V10
2011 Jeep Grand Cherokee