air bags question

https://www.hadleyadvantage.com/wp-content/uploads/2013/03/SmartValve2013.pdf

Depending on what suspension you have the lift may be minimal.

 

It is an option on carhaulers from the manufacturer and they refer to it as a pneumatic lift kit. I ordered it on my tractor and trailer that have Hendrickson suspensions. I would have to look at the specs to be exact, but mine will raise roughly 4-6 inches.

 

You can do it for free if you dont mind dealing with the hassle of manually lifting the arm on the leveling valve itself.

 

Had a couple of trucks than ran LTL with steep docks. Just removed the 5th wheel air line and tee'd into the air bags past the leveling valve. Flip the switch and would extend to the top of the shocks.

 

Definitely more than one wsy to skin a cat.

 

a valve with specs such as this one
https://www.amazon.ca/Electronic-Bo...5&psc=1&mcid=435368f1c665318cbb0e453fa4e258a7
and connected between the height control valve and bags with a tank air supply is a quick and easy solution.

 

That is standard equipment in Europe.
You can raise or lower the suspension and stop at any point in between.
Push the neutral button and it goes back to the driving position. Some may even do it once a certain speed is exceeded.