Air weigh or Right weigh?

a large single air gauge mounted on the trailer and connected to an airline will work fine,,load the trailer weigh at a cat scale and adjust your tandems until you get to 33,600lbs..read the air pressure on the gauge and then you will know how many psi is close to 34,000lbs.

 

I have a friend that has the same setup. He did it about one year ago, and it has worked so far. I think he has it ran out of his air bag air line. He had to load the truck a few times with various loads and scale them at the truck stop to get the correct readings. Now when you get to 70 PSI on the gauge he knows he has 40,000 LBS or 64 PSI on his trailer was roughly 33,500 on the trailer. He outfitted his for about $30.

 

I just did an Air-Weigh Load Maxx on the truck & trailer (all axles, including the deflection sensor on the front & VLS). Really easy, The trailer took maybe an hour. Calibrating empty/loaded is the most challenging. Make sure you have a very high quality & working ride height valve(s) or any system is worthless. Worth it for me due to what I haul.

 

Air gauges work better, are much simpler are cheaper to install.

 

I did put rightweigh scales on truck and trailer cost me $250 , very easy to install, works very good too.

 

I know this is an old post, but I thought I would ask anyway. How well does the deflection sensor work on your steer axle and how much was it, how difficult to install, does it work off of the tractor scale or do you need a third scale?

 

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You find a CAT scale at 34000 pounds full fuel perfect on your drives. YOur tractor's air suspension pressure gauge on the dash will reveal the poundage it will require to work under that weight. Take a ink pen or marker, make a line at that needle whatever the gauge says. I forget.. 50 pounds maybe...

That way when you hook onto something your air suspension gauge (Not the brake application gauge, this is different, and not the air supply gauge primary and secondary) will give you a good idea on your drives. and the behavior of the ### end will reveal the rest.

There are trucks that enjoy precision weight sensors for the people willing to spend the money for it. It is absolutely a joy to have. But ALWAYS... ALWAYS CAT SCALE the load ALWAYS.

Remember many weigh in motion scales have a preweigh that will trigger a light for further weighing the closer to 12000 on your steer and 34000 on your drive. You CAT before hitting any scale you can correct the over weight before the State starts to write expensive tickets such as 3000 dollars for over gross at 135000 that they did to me once (And I had one more states worth of scales to bypass to avoid MORE 3000 dollar tickets....) and there was a CAT half a mile away where I loaded that day I probably would have broke that one also.

 

Thanks for the reply. I was asking because I am thinking of adding my front axle to my on-board scales. I was unsure of the accuracy of the spring suspension sensor but, RGN gave me info on his success with the front spring axle sensor. The rest of the axles including my trailer have an onboard scale and I also have a gauge on the dash which I use as well. This system is very accurate when calibrated correctly and used on level ground, but I routinely bump my weights on the front axle and thus it would be a great help to be able to view this weight with my on board scale.