Lift axles

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Notiller12, Nov 6, 2025.

  1. Notiller12

    Notiller12 Bobtail Member

    8
    4
    Apr 2, 2025
    Michigan
    0
    I have a straight truck with steerable lift axles that use a mechanical air switch to lift and lower them but I’d like to have them lift when the truck is put in reverse due to they steer backwards when reversing. How do I need to wire this into my reverser switch on the transmission? Thanks
     
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  3. Gridaxe5588

    Gridaxe5588 Light Load Member

    124
    168
    Nov 23, 2022
    0
    Mine don't steer, I have a mechanical/electric valve in my tool box with a switch on my dash that I can flip to make them go up or down, might be something to look in to. The T handle you see is the manual operation.



    IMG_20221020_164104.jpg IMG_20221020_164104.jpg
     
  4. Notiller12

    Notiller12 Bobtail Member

    8
    4
    Apr 2, 2025
    Michigan
    0
    Ok thanks I’m just looking for a valve to use that does this.
     
    Gridaxe5588 Thanks this.
  5. Gridaxe5588

    Gridaxe5588 Light Load Member

    124
    168
    Nov 23, 2022
    0
    You're welcome, I'm OTR Owner Operator in an Expedite Straight truck, the states of Florida and Michigan require the manual operation part so you can't cheat the weights but mine is hooked up to a factory option switch in my Cascadia so they would never know looking in my cab.
     
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