Trailer brakes overheating

Discussion in 'Questions From New Drivers' started by Mb123, Oct 26, 2021.

  1. Mb123

    Mb123 Bobtail Member

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    Mar 8, 2021
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    Front left and rear right brake drum on trailer overheating.I changed abs valve,quick release valve,brake drums and shoes,slack adjusters and chambers and still same problem.Did anyone had same problem?
     
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  3. Moosetek13

    Moosetek13 Road Train Member

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    Burnsville, MN
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    It must be the balancing valve, located just aft of the blinker fluid tank.
     
    Bean Jr. Thanks this.
  4. WesternPlains

    WesternPlains Road Train Member

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    Sep 1, 2017
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    I suspect your spring (parking) brakes aren’t fully releasing. They also don’t fully activate for reason I’ll give.
    When activating. Make sure the pressure is at max. Usually 120 pounds. Whatever is normal for you. 110? Nope. Not good enough.
    Same reason pins won’t activate fully. Besides pins just getting caught on the edge. This is another symptom of operating the parking brake on a trailer when not full pressure.
    I also admit. Most all of that I experienced with mega companies. Also with a goof ball small company. Now I’m with a good company that does good maintenance on trailers. I don’t have to worry about absolute full pressure. I often do anyways. I just feel like lower than full abuses the system. On a good trailer like now. I can see the pins not activating as strongly. But still work.
     
  5. WesternPlains

    WesternPlains Road Train Member

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    Sep 1, 2017
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    To put what I said in short. For them to fully release. They need to be fully activated first.
    Might also be in air supply to trailer?
    My thoughts are just one possibility.
     
  6. Frank Speak

    Frank Speak Road Train Member

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    Hot Springs, AR
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    How many possibilities are there?

    Thanks,

    Tootsie Pop Owl
     
  7. roundhouse

    roundhouse Road Train Member

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    Jul 11, 2018
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    Do trailer have parking brakes on BOTH axles ?
     
  8. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    Sounds like dragging brakes. Got the chamber pushrods cut the right length on those 2 wheels? Too long and some brands of slack adjusters will adjust up tight.
     
  9. circle h

    circle h Light Load Member

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    Oct 22, 2020
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    Don't overlook the tractor brakes. If your truck is out of adjustment the trailer will do all the braking.
     
  10. djjoe1987

    djjoe1987 Bobtail Member

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    Oct 29, 2021
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    Stop resting your foot on the brake peddle.
     
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