Question about suspension gages/ problem?

I plumbed in my own suspension gages for the truck and the trailer.

I checked both gauges on the line from the truck air bags and they were within one pound or so.

When the truck is connected to the trailer empty I think the reading is about 15 pounds or so. The trailer is around 30 something.

I got loaded the other day and the tractor gauge read about 55 pounds or so but the trailer went to like 95 or almost a 100.

It was my understanding that these gages should both be approximately somewhere around 60 or 65PSI fully loaded.

This was a 40000 pound load.

So I'm trying to figure if maybe somehow I plumbed it in wrong or if there some other problem somewhere.

As I went down the road I could see the gauge going up-and-down as I hit the bumps and what not but that reading to me just seems very excessive. I'll never be able to really use the gauge with that kind of a reading to know where I'm at because that wasn't even a full load.

What do you think?

 

Well my trailer is the type that when you lock the brakes the airbags deflate.

So when did run the line to it both axles were deflated.

Also when I adjusted my air ride it seemed as though the leveling valve wasn't really sensitive enough and maybe it's sending too much pressure out all the time?

 

Well the thing is the gauge only goes to 100 pounds

I've only heard of people having readings of 50 60 70 pounds.

I never heard of anyone having a reading of 100 pounds on a load that isn't even a full load.