Power Points in the Dash

Discussion in 'Towing' started by P. A. Schilke, May 14, 2019.

  1. P. A. Schilke

    P. A. Schilke Well-Known Member

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    Hi Folks,

    My solution to this problem was to power the add-a-brake directly from the Ranger's battery through a 10 amp fused circuit. As was pointed out, you need onboard power in the event of vehicle breakaway.

    Best,
    Phil Schilke
    Ranger Vehicle Engineering
    Ford Motor Co Retired
     
  2. DrRoger

    DrRoger Well-Known Member

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    Thanks for the reply. Too bad. Need to find another plan. Thanks.
     
  3. Floyd

    Floyd Well-Known Member

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    #18 Jun 12, 2019
    Last edited: Jun 12, 2019
    Why not a normally closed Relay in a line powered by the tow vehicle which would switch to Onboard battery power only in the event of loss of power from the tow vehicle.
    Even simpler... why not add a small battery box placed in the Ranger to run the supplemental brake system, then simply charge it from the Tow vehicle.
    That would provide a consistent power supply, independent of the Ranger, which would still work in the event of a breakaway. It could be a small battery maybe even lawnmower battery sized or one of those little jumper packs.

    Question ... does the Brake machine even require power to brake in the event of breakaway? Does it failsafe?
     
  4. P. A. Schilke

    P. A. Schilke Well-Known Member

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  5. P. A. Schilke

    P. A. Schilke Well-Known Member

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    Phil
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    Hi Floyd,

    The add-a-brake is an air cylinder powered by a 12V air compressor. it clamps on the brake pedal. To stop the Ranger in a breakaway, the small air tank needs to be reapplied to keep up brake pedal pressure. This means the compressor would need to run depending on the pressure drop. There are other systems out there that use the RV' s air brakes. I am just using what I already have from my old 2007 Ranger.

    Best,
    Phil Schilke
    Ranger Vehicle Engineering
    Ford Motor Co Retired
     

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