10-11-2016, 07:29 AM
Sounds like my setup, you have a separate 6 pack for the tag with an adjustment knob and separate gauge for tag pressure. Since most Newells don't have the separate 6 pack for the tag axle I will add that the top air gauge on mine is the transmission air shift pressure, the middle is the system pressure (non-adjustable) and the lower gauge is the tag axle air pressure.
When I bought the coach, I assumed that the top gauge and adjustment was for the tag. All I was doing was deccreasing the transmission air shift pressure instead of decreasing the tag pressure. Newell suggests 25 psi on the tag but after weighing mine I found that 40 psi got the tag up to the 9,000 lbs range with a loaded coach and dropped the weight on the drive axle by almost 2,000 lbs. At 20 psi I only had 5,000 pounds on the tag and the drive axle was slightly overloaded. At 45 psi on the tag it was about 9,200 pounds on the tag and the drive was below 20,000.
When I bought the coach, I assumed that the top gauge and adjustment was for the tag. All I was doing was deccreasing the transmission air shift pressure instead of decreasing the tag pressure. Newell suggests 25 psi on the tag but after weighing mine I found that 40 psi got the tag up to the 9,000 lbs range with a loaded coach and dropped the weight on the drive axle by almost 2,000 lbs. At 20 psi I only had 5,000 pounds on the tag and the drive axle was slightly overloaded. At 45 psi on the tag it was about 9,200 pounds on the tag and the drive was below 20,000.