When sliding tandems, why does air pressure have to be at 120+ before pulling red valve?

Discussion in 'Freightliner Forum' started by expedite_it, Jun 21, 2021.

  1. Cattleman84

    Cattleman84 Road Train Member

    9,602
    67,009
    Nov 1, 2017
    The Sticks, Idaho
    0
    The button is simply a valve that controls air flow... The same thing could be accomplished with a valve like your kitchen sink has (provided it could handle the high pressure)
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.