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Thread: Surge Brakes. WHATS WOULD CAUSE THEM TO LOCK

  1. #1
    Kilrtoy
    Surge brakes what would cause them to lock while driving.....
    I need all possible answers....

  2. #2
    OutCole'd
    elec or hyd?

  3. #3
    Throttle
    Sometimes on my other trailer they would lock up when I was backing up the driveway... I used to think it was the weight of trailer and the force of the truck working against each other.
    I no longer back up the driveway, that seemed to fix the problem best...

  4. #4
    Kilrtoy
    Good question??????????
    they checked the emergency lock out and its good, but the plug to the truck from the trailer is hot.....
    all four brakes locked.....

  5. #5
    Ultracrazy
    Good question??????????
    they checked the emergency lock out and its good, but the plug to the truck from the trailer is hot.....
    all four brakes locked.....
    There should be a "L" shaped push rod under the tongue of the trailer.......if it's locked....you should be able to unlock it by pushing it up and releasing the brakes......good luck.

  6. #6
    RiverOtter
    Surge brakes what would cause them to lock while driving.....
    I need all possible answers....
    :idea: Slamming on your brakes

  7. #7
    TCHB
    The hydraulic cylinder freezes up with rust. You can replace the whole backing plate, brakes, and cylinder as a package for 60 dollars.

  8. #8
    Phat Matt
    :idea: Slamming on your brakes
    You beat me to it. Damn it. :lightsabe

  9. #9
    Ziggy
    Good question??????????
    they checked the emergency lock out and its good, but the plug to the truck from the trailer is hot.....
    all four brakes locked.....
    If the backup pin in the connector is hot then the little solenoid might be stuck open.
    Does it happen just while backing?

  10. #10
    Mandelon
    Surge Brakes. WHATS WOULD CAUSE THEM TO LOCK ?
    That stick I jammed in there....... :hammerhea
    Did you forget to take the chain and padlock off the wheels again???

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