Keep losing free pedal in clutch

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by BronsonA2150, Mar 22, 2019.

  1. BronsonA2150

    BronsonA2150 Bobtail Member

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    Jan 6, 2017
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    It seems we have to adjust our clutch about 2-3 times a year to get free pedal back. This is just on a grain truck, so not running it very hard. Is this a sign that the clutch may be going out or possibly something else? It’s a 93 fld120
     
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  3. Working2party

    Working2party Medium Load Member

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    What style of lock does it have? Are you sure your getting the adjuster locked in?

    Maybe cab or motor mounts are deteriorating?

    Or they installed a clutch with to low of torque rating?
     
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  4. baha

    baha Road Train Member

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    If you are driving alot of 2 lane and red light stop and go traffic it will make you adj. it much more than normal, keeping the free play correct will keep clutch from slipping and save fly/wheel from wear?
     
    x1Heavy Thanks this.
  5. Midwest Trucker

    Midwest Trucker Road Train Member

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    Tell driver to quit resting his foot/leg on the clutch.
     
    JohnC123, Dino soar, KB3MMX and 2 others Thank this.
  6. BronsonA2150

    BronsonA2150 Bobtail Member

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    I don’t know what all styles there are, but this one has the tab you remove.
     
  7. x1Heavy

    x1Heavy Road Train Member

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    The driver needs to stop trying to start off in too high of a gear while slipping clutch to prevent tractor from bucking.

    The previous posters had some very valid ideas as well.

    When I was local flatbed, my clutch went out a few times per year on a older 87 COE Freightliner. Adjustment was generally pretty rapid. Considering where I went with it in the Midatlantic area, it was a form of abuse.
     
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  8. Working2party

    Working2party Medium Load Member

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    So I’m picturing an old FLD with a grain dump bed, that gets pulled out of the shed/weeds maybe 4 times a year, (wheat harvest, fall harvest, spring planting, and fall drilling). If that’s the case, are you sure the clutch pedal is returning completely? I’ve been called to look at more than a few old grain trucks and I’ve seen a couple times where the clutch pivot shaft (in cab) or the control input shaft have gummed up to where the return spring didn’t have enough to pull it back.

    If it’s not that, then it’s just wearing that hard when you start out parked in the soft field.
    And it’s just normal.

    That truck may have a fiber clutch disc, if you run out of adjustment before something else gives way on it, you could replace it with a ceramic clutch, it’ll wear the flywheel alittle harder, but it shouldn’t require as much adjustment.
     
  9. Poor boy

    Poor boy Bobtail Member

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    You may have a driver who is not quite as good as they think they are. How many miles a year does this truck run?
     
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