According to the Service Manual I have, it's 11.5". This is measured from the top of the rubber spring to the bottom of the aluminum piston of the left hand side of the truck. All others should match.
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what is the temperature when the height of air equals zero
air pressure is decreasing
The height of a rocket as a function of time is h (t) = 60t^1.5 where h is in meters and t is in seconds. Air temperature is a function of height according to the function T (h) = 300 - h/m where m is a constant, T is measured in kelvins (K), and h in meters. Plus log(x=5)
THe ideal amount is 50% air pressure and 50% water. SHoot from 4-6 bar. I got mine to 92 meters
From the bottom of the frame, to the center of the axle housing, it is suppose to be 8¾" without a trailer. With the trailer, the measurement should be 8½"
Low air suspension refers to the fifth wheel height from the ground. The suspension system (low air leaf) is a suspension system with a lower ride height and is used by many transportation companies because it allows their truck to hook up to a variety of trailers. In modern days, low air leaf has been replaced with Flex Air suspension (low air leaf is still available). Flex air has the same ride height but weighs several hundred pounds less, thus allowing the truck to haul more weight in the trailer.
Check to see if your tires are out of round.
On the air springs.
No it should not. They have a ride height switch, which cycles the compressor. You probably have an air leak in the system.
This is a common mistake, the first animal to ride in a hot air ballon was a gorrila named "Heasman", he was choosen to go up in the hot air balloon due to his height of 3ft 2.
possibly the height sensors came unplugged rear or front but that will dissable the pump.
Look up Tech resource Wiki - How to adjustrear air suspension
It is an air compressor for ride height control
Lower the vehicle ride height or install air dam and/or ground effect bodywork.
Peterbilt made (and continues to make) a number of different models available for a number of different purposes. They won't all have the same suspension. Construction vehicles would have the option of Camel Back, Hendrickson Walking Beam, or Chalmers Suspensions. Road tractors would most likely have a four bag air ride suspension.
If the primary air system on the tractor is already charged, it should air up within 20 seconds.