Mont. High Country, Moving Wall

Is the slide jerking when it moves? You may have to clean the sides of the slide out. That slide gives me more trouble that the others, because I assume it is the heaviest.
I cleaned the exterior walls of mine with denatured alcohol, then sprayed WD40 Specialist with PTFE under the slide behind the seal. Clean and lube the seals.

More than likly the base of your wall has broke loose. Needs to be bolted back down.

goducks10 wrote:
More than likly the base of your wall has broke loose. Needs to be bolted back down.

X2!

While uncommon, it has been known to occur. The wall *IS* broken and will need to be repaired. Join the Montana Owners Club (MOC), a free to play forum, at montanaowners.com There you will find the experiences of at least two HC owners with broken walls.

Dang, I got focused on how bad mine sometimes jerks and didn't address the wall moving.
I'll watch my wall the next time I move that slide.
Good info, thanks.

I have a 2016 Montana HC 375FL. Had the exact same problem in July. The unit was 5 weeks out of warranty, however the repair was covered by Keystone. It was a wall stud that broke loose at the bottom. The dealership accessed by peeling back J wrap on the outside , rewelded the broken stud and added additional bracing. You cannot even tell that it has been repaired they did a great job.

Don't have the wall problem but my slide was jerking severely. I cleaned the bottom and bearing strip under the slide as best I could with 90% alcohol and then treated with WD-40 Specialist Dirt & Dust Resistant Dry Lube PTFE Spray. Slide operates now with no jerking at all. Thanks for the tip.