[newell_0]

Sayed,
We all learn something every day.  Newell changed the air system on the newer coaches.  They no longer have an isolated air system for the slide seals, toilets, pocket doors and air door.  The isolated system was designed for dry camping.  Your coach has two 110V air pumps, but the second is only a back up for the main one.  Your 110V air compressor services the entire coach.  Therefore it becomes harder to find air leaks, because only the brake system, through check valves is isolated from the main coach air system.  This info came from Jim Gehring at Newell service.

Let me know how the brake system test comes out.

Turn on your 110V air compressor and when it shuts off, shut off the switch to the 110V air compressor.  How long does it take to leak down to zero on your supply gauge?  When it leaks down to zero what is the reading of the two needle brake gauge?

Steve,
That is good to know - thanks for finding that out!
The air brake system is holding pretty good. I had the engine on, air brakes were all up, parked and turned off the engine, turned off the 110 V Compressor on Ssturday because I did not want it to cycle every 38 or so minutes. When I started the engine on Wednesday (three days later) my air brake gauges were almost at normal pressure at the start, of course my aux gauge was down to zero. After this three day period the coach was leaning about three inches lower on the driver side. I tried to contact Newell twice today and twice yesterday, but wasn't able to talk to human and I didn't leave a voice mail
Although I haven't not timed it, but my hunch is the aux air gauge will zero out in about an hour. If you want me to time it, I can do it and let you know?