Originally Posted by shepherd57
The next time I go to the coach I will check to see what is left of the system. I know the jacks are there but I don't know about the pump or the if the lines are there.The controls are gone but they can be bought new from HWH.
If you can't find used controls I would have a serious conversation with HWH about up-grading the control. The older controls operate each jack/valve independently which can tweak the coach. The instruction is to operate two jacks together...both fronts, both rears, or front and rear on the same side. On many flat sided coaches you can crack a windshield if you don't get it right. The newer controls will operate the valves in pairs for you.
I have not had a problem because my Airstream, and I'm sure others, has a very rigid structure. The last step of leveling is to walk around and check that each jack is on the ground. It is not uncommon to find one jack two or three inches off the ground. The coach is so rigid you can't feel it inside. The newer controls should eliminate this problem.