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Peterbilt 579 tilt slipping

Discussion in 'Ask An Owner Operator' started by GYPSY65, Aug 24, 2022.

  1. Aug 24, 2022 #1
    GYPSY65

    GYPSY65 Road Train Member

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    I have a 579 and wondering if there’s an adjustment to tighten the tilt force when it’s locked in place
    It’s not falling down but I can get it to move with some force but don’t believe that it should and never noticed it on any of my last 3 Pete’s or my KW
     
    GYPSY65, Aug 24, 2022
    GYPSY65, Aug 24, 2022
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  3. Aug 24, 2022 #2
    062

    062 Road Train Member

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    062, Aug 24, 2022
    062, Aug 24, 2022
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  4. Aug 26, 2022 #3
    GYPSY65

    GYPSY65 Road Train Member

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    Bump

    No one has any info on this number r what the fix is?
     
    GYPSY65, Aug 26, 2022
    GYPSY65, Aug 26, 2022
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  5. Aug 26, 2022 #4
    062

    062 Road Train Member

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    062, Aug 26, 2022
    062, Aug 26, 2022
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  7. Aug 26, 2022 #5
    Goodysnap

    Goodysnap Road Train Member

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    I was digging yesterday and didn’t come up with much to help you even from TRW. We just don’t see many troubles out of this column.

    I know the tilt works off a cam style lock with a sliding disc. Maybe once u get in there it can be tightened?

    Next time we have one tore apart I will look closer.
     
    Goodysnap, Aug 26, 2022
    Goodysnap, Aug 26, 2022
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  8. Aug 26, 2022 #6
    Goodysnap

    Goodysnap Road Train Member

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    @GYPSY65

    See attached diagram.

    I searched for COL204 and came up empty. This should be a TRW service bulletin or procedure. You can attempt to contact them directly to see if they can send it to you.

    I would remove the cotter pin from the castle nut on the tilt lever LH side and tighten one notch to see if the clamp load is sufficient to prevent movement. If not keep going one notch at a time until the lock holds and release is good.

    HTH
     

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    Goodysnap, Aug 26, 2022
    Goodysnap, Aug 26, 2022
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  9. Aug 26, 2022 #7
    GYPSY65

    GYPSY65 Road Train Member

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    Thanks for the info
    I hadn’t had time to pull it apart. Maybe tomorrow??
    But seems it should just be an adjustment??
     
    GYPSY65, Aug 26, 2022
    GYPSY65, Aug 26, 2022
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