1995 Chevrolet P30 Air Bag Pressure
I had the air bags replaced on my 28ft Bounder and in the GM manual it shows the recommended pressure 60-100psi but Air Lift recommends 40-90. Should I go by the air bag manufacturers pressure or chas...
Forum Discussion
A recommendation of starting at 70-80psi for the front bags is too high. Your coach is 28ft and very likely has a front GAWR of 4880lb (same as mine 1994 P-30 28ft). The GM manual air bag pressures for a 5000 GAWR are 40psi min and 50psi max. Your min is likely 30-35psi but certainly not 40psi. look inside your closet it will have the weight GAWR ratings.
As for the measurements that were previously given they are NOT what the coach should be when adjusting. They are for determining the 'Degree set' for front alignment....
With respect to checking the ride height on the P series rig it must be measured between the upper control arm and the base of the rubber bump stop (iron to iron) ignore the rubber bumper. It also must be measured perpendicular to the upper control arm. This is with the RV level and air bag pressure at max pressure.
That measurement is then used to select the degree set for alignment. Some have said the measurement is between the top of the rubber bump stop and the upper control arm. This is incorrect. It is iron to iron. And the final measurement only has to do with the degree set for alignment and nothing else.
http://www.offroadtoybox.com/RV/P-Chassis-AlignmentProcess.pdf
