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  1. #1
    Silver Member putt_putt_green's Avatar
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    Mar 2007
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    199
    Location
    South Central MI
    Tractor
    JD 3520

    Default Is there any science behind pucker factor?

    Just wondering if anyone knows the scientific reason for the occurrence of pucker factor?

    If I were to guess (I'm sure I'm totally wrong), I'd guess the weight starts to shift from the uphill side to the downhill side of the tractor at a faster rate. This puts less weight on the uphill side of the tractor and more weight on the downhill side of the tractor causing the tractor to shift ever so slightly. This shift is noticeable to a person.

    If someone were to drive with one side of the tractor tires loaded and the other side unloaded sideways on a hill, would the pucker factor change based on whether the loaded side was uphill or downhill?
    Putt Putt Green
    JD3520 : canopy, loader with toothbar, hoe, boxblade, 2-14 plow, tiller, and pallet forks.

  2. #2
    Epic Contributor MossRoad's Avatar
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    Aug 2001
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    23,806
    Location
    South Bend, Indiana (near)
    Tractor
    Power Trac PT425 2001 Model Year

    Default Re: Is there any science behind pucker factor?

    The weight doesn't shift from one side of the tractor to another. The center of gravity changes.
    MossRoad

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  3. #3
    Super Member 3RRL's Avatar
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    Oct 2005
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    6,812
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    Foothills of the Giant Sequoia's, California
    Tractor
    55HP 4WD KAMA 554 and 4 x 4 Jinma 284

    Default Re: Is there any science behind pucker factor?

    Scientific reason for pucker factor?...
    Self preservation, of course.
    Rob-
    ...The Older I get...the Better I Used to be...
    Member of the Month

  4. #4
    Elite Member SkyPup's Avatar
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    Dec 2003
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    3,005
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    North Central, Florida
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    Kubota L-39 GST TLB, Kubota L3130GST, Massey 1030 HST, Kubota ZD-21 ProDecK, Two Euro VW TDIs

    Default Re: Is there any science behind pucker factor?

    Most Darwin Award prizewinners have low to zero pucker factor.
    Suck, Squeeze, Bang, Blow......GO Diesel GO!

  5. #5
    Epic Contributor Soundguy's Avatar
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    Mar 2002
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    48,618
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    Central florida
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    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Is there any science behind pucker factor?

    Another poster already hit the nail on the head about center of gravity.

    And depending on how and where you hang weights.. you will adjust center of cragity on a tractor.

    That said.. I'm not a fan of running 1 tire wet, and one dry.

    Soundguy

    Quote Originally Posted by putt_putt_green
    Just wondering if anyone knows the scientific reason for the occurrence of pucker factor?

    If I were to guess (I'm sure I'm totally wrong), I'd guess the weight starts to shift from the uphill side to the downhill side of the tractor at a faster rate. This puts less weight on the uphill side of the tractor and more weight on the downhill side of the tractor causing the tractor to shift ever so slightly. This shift is noticeable to a person.

    If someone were to drive with one side of the tractor tires loaded and the other side unloaded sideways on a hill, would the pucker factor change based on whether the loaded side was uphill or downhill?

  6. #6
    Elite Member RobJ's Avatar
    Join Date
    Jul 2005
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    3,471
    Location
    Spring, TX (Houston)
    Tractor
    Kubota L2500

    Default Re: Is there any science behind pucker factor?

    I thought the pucker factor came from the inner ear.
    L2500

  7. #7
    Member
    Join Date
    Apr 2007
    Posts
    34
    Location
    Manitoulin Island Ontario
    Tractor
    John Deere 4410 Jodale Perry Boxer cab

    Default Re: Is there any science behind pucker factor?

    The more pucker factor. The better the grip on the seat.

  8. #8
    Elite Member
    Join Date
    Nov 2005
    Posts
    2,944

    Default Re: Is there any science behind pucker factor?

    Quote Originally Posted by MossRoad
    The weight doesn't shift from one side of the tractor to another. The center of gravity changes.
    Nope,
    Guess again.

    The weight and C of G both stay put.
    What CHANGES is the area of support UNDER the C of G.
    Perhaps more importantly (in our heads) the area of support under our precious little bodies.

    and yes, self preservation / fear is the cause.

  9. #9
    Gold Member
    Join Date
    Aug 2005
    Posts
    368
    Location
    The Real Maine
    Tractor
    JD3520

    Default Re: Is there any science behind pucker factor?

    Rob hit the nail on the head with the vestibular system/cochlea/inner ear... we do not like to get off kilter, even by a few degrees, so when a side drops out on us, it's fight or flight that kicks in...

    No amount of weight shifting will stop the physiological response, but it can keep you planted more firmly, and increase the actual angle the tractor will go over... this will give you some reassurance as your heart rate continues to spike!
    browns40




  10. #10
    Platinum Member Defective's Avatar
    Join Date
    Aug 2004
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    578
    Location
    Ontario, Canada

    Default Re: Is there any science behind pucker factor?

    Quote Originally Posted by RobJ
    I thought the pucker factor came from the inner ear.
    But it happens in the inner rear.

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