Trouble dialing in electric brakes?

Discussion in 'Tires / Brakes / Bearings / Axles' started by pagoona, Jun 19, 2018.

  1. pagoona

    pagoona New Member

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    Mar 22, 2018
    I had a brake controller installed in my TV before I went to pick up my new Rockwood 1940LTD. The controller is the Curt Tri-Flex 51140. I started with the suggested output of 2.0 and at 25 mph, I couldn't feel any sort of slow down when I pulled the manual switch. After turning it up a few times, I could finally start to feel them at about 6.0-7.0, but it felt nowhere near having the wheels lock up. Even at 9.0 I feel a good amount of tug, but still nowhere near enough to stop the TV. I feel like 9.0 is way too high. Am I even doing this right or could there be something wrong with my setup? Haven't been able to check the output with a multimeter yet.
     
    Last edited: Jun 19, 2018
  2. Fless

    Fless Active Member

    @pagoona, if your controller came with a manual, there may be a test procedure for initial setup. Lockup may not be feasible or recommended. It may have a "boost" feature on it, too. And you shouldn't expect the trailer brakes to stop the TV, you just want to have the trailer brakes engage so the trailer isn't pushing the TV. All the trailer brakes need to do is their part in stopping.
    _
     
    nineoaks2004 likes this.
  3. giadiep

    giadiep Active Member

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    Sep 5, 2015
    Syracuse, NY
    You need to adjust the brakes themselves. There are YouTube videos that show you how.
     
    xxxapache likes this.
  4. pagoona

    pagoona New Member

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    Mar 22, 2018
    Thanks, I'll look into it. I'm a newbie at this trailer stuff.
     
  5. xxxapache

    xxxapache Well-Known Member

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    Jul 30, 2008
    9 may not be too high....What is the highest setting the controller goes to?

    I wouldn't expect a single axle popup to have enough brakes to stop a TV.

    I also agree that your shoes may need adjusting, but wouldn't expect it on a new trailer.
     
  6. pagoona

    pagoona New Member

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    Mar 22, 2018
    9.9, I believe.
     
  7. jnc

    jnc Welcome from New Hampshire

    I think XXXapache has it right in that you may need to adjust the brake shoes. Try a down hill stop with the brakes off the repeat with them on so you can really feel the difference.
     
  8. pagoona

    pagoona New Member

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    Mar 22, 2018
    Looked up YouTube videos on how to adjust the trailer brakes, and it seems surprisingly easy.

    This video shows how to do it, but doesn't go into great detail about what's happening.


    This video shows a brake shoe off the wheel so it demonstrates exactly what you're doing.


    When I find the sweet spot where there is minimum drag on the wheel, should I leave it so there is a slight resistance, or should I back off a little so the wheel spins freely?
     
    Last edited: Jun 20, 2018
    J Starsky likes this.
  9. giadiep

    giadiep Active Member

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    Sep 5, 2015
    Syracuse, NY
    I was always taught "slight resistance". The trouble is that there is variation of what this means. I think it has to be so slight that they don't constantly rub while being towed. If it is rubbing all the time, the hubs will be hot and you'll be able to tell by feel. Then you need to back them off a little.
     
  10. J Starsky

    J Starsky Active Member

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    Aug 3, 2017
    East Central MN
    I'll pull a wheel and spin. Drum brakes should drag a little. You probably have zero drag and it a good lesson on how to look at them.

    I have seen a new kia that had drums not factory adjusted and would slide at an icy stop condition, rearend to the right! Had to take a friend to the dealer and explain what was wrong to the tech, as my friend was from Sweden, visiting for a year, and dude thought he was a Chef, not an engineer. [LOL] Good times.
     
  11. Caper

    Caper Member

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    Jul 31, 2017
    Im no pro but this is what worked for me..

    If drums constantly rub they will glaze over and the trailer brakes will not be able to do their job.

    I set mine on a dirt road. I was told this is best because it prevents dragging the tires and developing flat spots while making adjustments.
    I drove 30 kms an hour and stopped if it sounded like the brakes locked up and skidded then i tuned it back.
    I did this until there was no resistance from the trailer then i turned it up until it was just locking up.

    it has worked for my pup and my parents TT.

    hope this helps

    Caper
     

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