Frank,

Just checking, because it happened to me once. I had a pressure gauge off by several pounds which cost me a new set of tires for a client. Bill was a noble man and a rare breed. He only asked for a prorata share since he had gotten use from the tires. Back to the original problem, I'm having a hard time condemning the nitrogen cells, because they usually produce a bouncy back end. Since the rear suspension on an MB load leveling system has no shocks, The shock action is relegated to two spheres. A sphere on each side of the car has a thick rubber diaphragm in the middle. On one side of the diaphragm is nitrogen, and on the other side is hydraulic fluid. When you hit a bump the hydraulic fluid tries to take the space of the nitrogen. The nitrogen being compressible gives a little and takes the bump. Perhaps you have some nitrogen left and haven't reached the bouncy stage. Hope this explaination helps.

Peter

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