Slide room creeps out on its own ???

[Trailer Trash]

We have an 09 Bighorn 3370, the bedroom slide will creep out a few inches on its own while at home in the backyard connected to power 24/7. FYI when I open the slides it is the first one to open. Any ideas what causes this? The other 2 slides do not do this. Thanks

 

[cookie]

I had a similar issue years ago. My problem was an internal leak at the hydraulic ram for that slide.
Although it's a bit of labor it can be a DIY project.
You can find information in the Tools section, here.
Check the Slide-out Service Manual.

Peace
Dave

 

[MirageFlare]

It’s likely a small hydraulic leak or low pressure. Check the fluid levels and inspect for leaks around the bedroom slide’s seals or lines.

 

[Trailer Trash]

Its not loosing any hydraulic fluid in the plastic tank tank ?

 

[Routemaster]

Mine was a leak in a crack in the weld at the fixed end of the cylinder.

 

[Dahillbilly]

Its not loosing any hydraulic fluid in the plastic tank tank ?

internal leak in the valve you will not see. It's fluid leaking past the valve seat or seals in the cylinder. Cookie in post #2 stated hid problem well & how to check into the issue.

 

[BigFry]

Replacing the hydraulic cylinder is doable if you decide that is what is needed. It is a messy job but this Lippert video helped me.

Hydraulic Through Frame Slide-out Hydraulic Cylinder Replacement | Lippert Customer Care Center

This video shows how to replace the through frame slide-out hydraulic cylinder

support.lci1.com

 

[Routemaster]

Hey BigFry. These video's are great, why don't they make them in the real world when one is in an RV park maybe?
See my pictures I found that the rear end is fixed when I think there should be a pivot (that is where mine was leaking at the stud) because something has to give when that slide goes out and drops to floor line sort of the fridge slide goes straight so does not have the same action that's good.
Just maybe the replacement cylinders are alloy so as to have a bit more ductility, Yes?
But do I know, lovely engineering, gap in the outer tube at least the racked slide has some to move up or down I did shim mine.

 

[BigFry]

Yes, the T-connector is at the end of the cylinder. If there is any movement, the opening in the frame sheers it off causing a leak. I added an extension to hopefully help if the cylinder becomes loose again.