Reset slide on 3781 rls montana

[Sunshine77]

Our driver side bedroom slide is coming out going down the road. Can it be reset?

[ChuckS]

Yes.. is this a hydraulic slide or in wall electric?

[Sunshine77]

It is hydraulic

[tech740]

Do you have a hydraulic leak? As long as there is no fluid movement the slide should not move. I would suspect a leak or a stuck valve allowing fluid to move and hold pressure on the cylinder.

[dutchmensport]

Hydraulic fluid reservoir is low.

[chuckster57]

Scroll to page 7

https://www.granddesignrv.com/sites/...de-out-web.pdf

This is a grand designs web page but it’s the same system

[ChuckS]

Hydraulic slide out creep is a common occurrence that is caused by one of 4 things...

.. hydraulic cylinder or line on that slide out leaks external
.. hydraulic slide out leaking internally
.. Hydac valve foe the hydraulic slide outs isn't closing tight or manual override screw not fully closed
.. air in the system

I would cycle the slides in and out a few times and then close and if no external leaks monitor to see if slide creeps out again

Hydraulic slide outs are held closed by 2000 psi hyd pressure on opposite end of the dual port cylinder

This is an easy problem to diagnose and fix... most likely just air in the system if no external fluid leaks