Slack adjusters and air brake components

Discussion in 'Questions From New Drivers' started by Mototom, May 27, 2019.

  1. Cam Roberts

    Cam Roberts Road Train Member

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    no he was being serious. you have to cut the pushrod in order to install it
     
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  3. Mototom

    Mototom Road Train Member

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    Seriously? This is a 2016 model dry van trailer automatic slack adjusters. Using white out I mark pushrod at entrance of chamber, apply brake and measure the distance mark traveled.
     
  4. LDLWells

    LDLWells Heavy Load Member

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    I'm not your bro as far as I'm concerned I'm not going to be looking at your posts anymore.
     
  5. Cam Roberts

    Cam Roberts Road Train Member

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    come on bro. whyy so angry
     
  6. WesternPlains

    WesternPlains Road Train Member

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    I had posted a great link on this. It’s in my yadda yadda thread somewhere.
    Easiest to do with two people.
    Press the brake for between 90 to 100 psi. If I remember right. Should be about an inch and a half. Over two bad. Under one bad. Sorry... I’ve been working with disk brakes. So don’t practice that anymore.
    You can mark the rod with a piece of masking tape.
    This is length of travel. Not slack distance. That is too much hassle to check on drums with auto adjusters.
    It is highly recommended to have a mechanic adjust auto slack adjusters. Two reasons.
    One) They are just plain strange to adjust. Need experience like a mechanic has.
    Two) If auto slack adjuster is out. Probably something more than simple adjustment.
     
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  7. Doealex

    Doealex Medium Load Member

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    If the the brake chamber’s pushrod moves over 2” after you apply the brakes then your brakes need adjustment per DOT.
     
  8. Snailexpress

    Snailexpress Road Train Member

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  9. dibstr

    dibstr Road Train Member

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    Depends on chamber type. There are over 30 chamber types and 2” is the limit on 8 of them if I remember correctly, including the most common chamber the type 30.
     
  10. starmac

    starmac Road Train Member

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    I keep zip ties on my pushrods , that I install with the brakes released, that way I can see how much travel they have anytime the brakes are set.
     
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  11. dibstr

    dibstr Road Train Member

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    That works, and for the less ingenious they sell clips in truckstops that just clips on the push rods when sbrakes are released.
     
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