[Wally Arntzen]

I have an 88 and the tag air is adjustable. I have a black knob at the bottom of the guage and I don't recall if you push the the knob in or pull it out and turn it to the amount of air you want to make the adjustment. I then put it back to the neutral position and it holds. On my 88 I was told at Newell to keep my tag at 40 pounds. They probably have different preasures for newer coaches.