wbwood wrote:
See how these jacks are sitting on gravel? Well if you have this, dirt or any other thing underneath that can move, sink or shift, then you will needll move on the rocks. The rocks will move, dirt will shift or soften when it gets damp. So you will need to retighten.
True. Also, frames flex (some more than others too) which can add to this happening. If I crank our rear jacks down too much, the superstructure shifts enough that the dead bolt in the rear entry stops working. I was surprised to discover this as we have a HD frame. Jacks should be tightened just enough to be snug and can be a challenging balancing act if also using stacker jacks in the corners and jacks ahead of the axles.