replaceing "clutch brake"?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by coadman, Feb 28, 2009.

  1. Bigstretch

    Bigstretch Light Load Member

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    Jun 14, 2008
    NW IL
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    Bet he adjusted the linkage, and not the internal adjustment. Or, did a linkage adjustment before the internal adjustment.
     
  2. 05chopper

    05chopper Light Load Member

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    Dec 25, 2008
    USA
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    Clutch brake usually are one piece! a two piece brake can be install once the one piece is air hammered out. The linkage adjusts the clutch brake travel and the internal clutch adjustment is for wear and free travel.When your clutch wears you do a internal adjustment there should not be any reason to adjust clutch brake if it set right usually at 1/2 inch.
     
  3. Bigstretch

    Bigstretch Light Load Member

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    Jun 14, 2008
    NW IL
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    Right. just like I said.

    Right. But, if the driver has a tendency to push the pedal too far, causing excess wear on the clutch brake, I usually set the manual adjust clutches with a 9/16"-5/8" gap at the throwout bearing. No slippage at all.
     
  4. 9 Axle

    9 Axle Light Load Member

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    Feb 7, 2009
    Purdon, Texas
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    1/2" is spec according to Eaton. OO's can deal with this quite well. I have to agree with Bigstretch, co truck well over the 1/2" spec.
     
  5. 05chopper

    05chopper Light Load Member

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    At 5/8 inch how much clutch brake squeeze do you have or do you bother to check it? 1/2-9/16-5/8 fits your trany spec so be it. To get to this measurement we have to take in to play that all linkage and peddle shaft bushing are where they should be.
     
  6. Bigstretch

    Bigstretch Light Load Member

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    Jun 14, 2008
    NW IL
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    I haven't checked the clearance on the release fork side. The brake still works properly at the 5/8" adjustment. If the brake still won't squeeze, I'll go to 9/16" gap. That usually works, if 5/8" is too much.
     
  7. walton379

    walton379 Light Load Member

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    Nov 21, 2008
    Moon Lake, MS
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    I have had a great deal of experience with clutch brakes with all the worn out trucks I have owned. My experience has been that the brakes friction material will get worn over time but the main problem is the linkage adjustment or lack of.. the most common problem ive run into is the fork that engadges the throwout bearing has two forks on it that pushes the bearing forward and then touches the stop break to stop the input shaft. I have found that they are usually always worn out on older trucks.. it does not take but just a little wear to make it not ingauge all the way. replacing the fork and using a correct one piece brake worked best for me.. however you will have to slide the trans back to do this.. thats just been my experienc and your fork and bushings may not be worn. if they are worn a two piece installed will not work for long if at all.
     
  8. nbay29

    nbay29 Bobtail Member

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    Jun 17, 2011
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    Just replaced my clutch brake on a Pete. It cost me $34.21 for a 2 inch brake and $48.00 to have it installed. Hope this helps.
     
  9. Krooser

    Krooser Road Train Member

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    Does anyone even teach newbies what a clutch brake IS anymore?
     
  10. canuck in da truck

    canuck in da truck Road Train Member

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    that is pretty decent price to install a clutch brake---must have just charged a half hour???
     
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