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Lowboy trailer brakes

Discussion in 'Trailers' started by southernman13, Dec 3, 2019.

  1. DMiller

    DMiller Senior Member

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    S cams come in L and R hand rotation it is not so much turning it over as much as getting the correct direction
     
    Theweldor likes this.
  2. DMiller

    DMiller Senior Member

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    The push rod will not rotate out of the can of adjusted in the correct direction
    The pish rod ahould be forced into the can not out
     
  3. southernman13

    southernman13 Senior Member

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    At one point I did take the clevis pin out and I could not mover the slack adjuster by hand. But as said the shoes and drum are new. There is very little room for movement it’s a very close fit. When I had the clevis out as I said earlier I put the battery powered drill on the adjuster and spun the cam around without the shoes installed. I didn’t try and move it by hand and I should have. The shoes move in the right direction when the brakes are applied. When I try to adjust them is where the trouble is. The slack adjuster moves in lieu of the s cam shaft. Either way you turn it in or out. I know how to adjust them the other 3 wheels are working as they should. It’s not me. I’m going to try a new slack adjuster at the very least. Thanks for the suggestions. I don’t know how else to explain it.
     
    DMiller likes this.
  4. Mobiltech

    Mobiltech Senior Member

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    Sounds like the cam is binding in the bearings and hard to move.
    So you tighten the slack adjuster until the brake is tight and somewhat applied then when you back it off half a turn the rod pulls out of the brake pot instead of the cam moving back to the free clearance position.
     
    DMiller likes this.
  5. DMiller

    DMiller Senior Member

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    If the cam is not moving by hand a Slack adjuster will not change it. Is most likely frozen inside the bushings and will need pulled and cleaned regreased at the least.
     
    92U 3406 likes this.
  6. southernman13

    southernman13 Senior Member

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    Yes I don’t like throwing parts at the problem. I really think it may be corrosion and crap in the bearings etc. I’m gonna try greasing it and see what happens. Thanks again for all the opinions and yes mobile tech u are correct.
     
    DMiller likes this.