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2020 Mack Anthem airbag dump question

Discussion in 'Trucks [ Eighteen Wheelers ]' started by DrakeG1305, Aug 9, 2021.

  1. Aug 9, 2021 #1
    DrakeG1305

    DrakeG1305 Bobtail Member

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    Aug 9, 2021
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    I’ve got a new anthem and just started doing glass work and they require your bags to be dumped while loading, but if I flip the switch to dump and cut the truck off, the airbags re-inflate. Yes I’m leaving the switch in the dump position when I turn it off. I’ve even tried cutting the main power but they still go back up. Anyone know if this is how it was intended or if there is a workaround? I just hate leaving my key on for god knows how many hours while loading
     
    DrakeG1305, Aug 9, 2021
    DrakeG1305, Aug 9, 2021
    #1
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  3. Aug 9, 2021 #2
    Roberts450

    Roberts450 Road Train Member

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    Its most likely a default setting in the trucks cassis computer. I would ask a mack or volvo dealer if that feature can be switched. Other then that you’ll just have to leave the key on.
     
    Roberts450, Aug 9, 2021
    Roberts450, Aug 9, 2021
    #2
  4. Aug 9, 2021 #3
    jason6541

    jason6541 Road Train Member

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    Probably a electric over air solenoid
    Cut the power the winding is denergized
    And thus allows the air to flow thru the valve.
     
    jason6541, Aug 9, 2021
    jason6541, Aug 9, 2021
    #3
    Roberts450 Thanks this.
  5. Aug 9, 2021 #4
    Hammer166

    Hammer166 Crusty Information Officer

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    Can you turn the key to ACC and see if the solenoid stays energized that way?
     
    Hammer166, Aug 9, 2021
    Hammer166, Aug 9, 2021
    #4
  7. Aug 9, 2021 #5
    DrakeG1305

    DrakeG1305 Bobtail Member

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    Aug 9, 2021
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    ACC still makes it go up. It’s got to either be started or just to on
     
    DrakeG1305, Aug 9, 2021
    DrakeG1305, Aug 9, 2021
    #5
    Hammer166 Thanks this.
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