how to physically check your brake pads and drums?

Discussion in 'Questions From New Drivers' started by DC843, Feb 1, 2016.

  1. DC843

    DC843 Medium Load Member

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    can anyone explain the method one would use for physically examining your brake pads and drums to make sure they are not getting close to failing? is there a way to do it if you have dust covers without taking the wheel off?

    ive been trying to find something about this online and all I can find info on doing the various brake tests, and not actually checking the brake themselves.
     
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  3. truckingmechanic

    truckingmechanic Light Load Member

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    Go underneath and make sure neither is cracked and that you have enough brake pads left
     
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  4. ajohnson

    ajohnson Medium Load Member

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    Look on the inside of the wheel, should be pretty obvious. Do you have a cdl? This should be covered in training
     
  5. AnthonyM757

    AnthonyM757 Light Load Member

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    I've always went under the truck and and look at them under the wheel, and check for at least a quarter thick inch brake pads, make they are snug to the drum. And also see if the drum is not cracked or broken...
     
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  6. PackRatTDI

    PackRatTDI Licensed to Ill

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    When press brake no stop need new brakes.
     
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  7. Hyweighman

    Hyweighman Medium Load Member

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    Your going to open up a big can of worms. If you can see the bottom of brake shoe it should be about 9/16 thick. Use a 9/16 open end as a reference. That's a rough estimate
    Good luck
     
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  8. DC843

    DC843 Medium Load Member

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    i do but they never explained how to check them at the place i went to, just basically where they were.
     
  9. Moose1958

    Moose1958 Road Train Member

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    I am not sure if this will answer your question.
     
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  10. ajohnson

    ajohnson Medium Load Member

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    Like everyone said, look at them, no cracks, nothing missing, and make sure there is enough pad left, 1/4" legal min. Your company should replace them sooner
     
  11. cnsper

    cnsper Road Train Member

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    What a lot of BS and misinformation in this thread. Apparently many just read the title without reading the post.

    First thing, the brake pads need to be at least 1/4" thick measured at the center of the shoe. That means the top and the bottom of the drum.

    As far as the dust covers are concerned, some will have inspection holes in the top and bottom while others will be removable. I have not run into the removable type and most of our trailers do not have them anyhow.
     
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