Went to crank down PUP this morning and one of the lift arms won't come down, came down a few inches then stopped! It actually feels almost loose and wiggly, but won't go up or down. Thankfully this happened in the driveway not a campground! Since the canvas isn't pulled tight, we just tarped it really well for now. Any suggestions on how to get this down at least for now? I'm afraid to go messing around inside right now. I want to get some 2x4 to support the roof before anyone goes poking around inside. I don't want to take any chances of a total roof failure, that is one large PUP roof! Thank for any help!!