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  1. #31
    Gold Member
    Join Date
    Aug 2006
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    443
    Location
    Nottingham, N.H.
    Tractor
    2009 MF 1531 TLB

    Default Re: Air Pressure in Loaded tires.

    I have rimguard in my tires,one started leaking at the bead. The dealer had me add a little air to tire,the leak stopped. I guess the bead won't stay seated properly when underinflated. I run more air pressure in my front tires because they aren't loaded. plowking

  2. #32
    Elite Member
    Join Date
    Nov 2009
    Posts
    3,444
    Location
    USA
    Tractor
    Bobcat

    Default Re: Air Pressure in Loaded tires.

    I am surprized someone hasnt brought up using nitrogen in the tires......



  3. #33
    Veteran Member The Haymaker's Avatar
    Join Date
    Jul 2009
    Posts
    1,293
    Location
    Benton, Maine
    Tractor
    2008 T2220

    Default Re: Air Pressure in Loaded tires.

    Quote Originally Posted by Mace Canute View Post
    Movintgt, that's correct. Tire pressures need to vary with the weight they support. This is easily evident when you think of the front tires on a tractor with a FEL compared to the ones on a tractor with a 3PH mounted implement. What's correct for one is totally inappropriate for the other. It holds true for rear tires as well, of course.
    "
    So you're telling me I should vary the air pressures in my big rig to stay within spec when I load from 30k-lbs empty to 80k-lbs loaded?

    Put the tires in spec and leave them there.

    Personally, I think a slightly lower pressure in a loaded tire would be necessary. Liquid is non-compressible, so the much lower air volume would increase rapidly with a very minimum amount of deflection. Harsh ride here we come.

    Far reaching, but good example, would be tuning handling on a dirtbike by varying the amount of oil volume in a dirtbike fork. Normal pressure is 0psi. Raising oil level in the tubes a mere 5mm can make a drastic difference in harshness and/or bottoming resistance. The decreased air volume causes a sharper rise in pressures for the same amount of travel/ deflection. Raising the oil too far can cause very harsh ride or failure of the fork seals due to pressures exceeding the capabilities of the seal.

    What do I run? No idea. If it looks slack, I add air.
    "Freedom is never more than one generation from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same, or one day we will spend our sunset years telling our children and our children's children what it was once like in the United States where men were free."

  4. #34
    Gold Member
    Join Date
    Aug 2010
    Posts
    330
    Location
    On the Oregon coast
    Tractor
    JD 870

    Default

    Nothing else had made me feel as good about not putting fluid in my tires as this thread. Thanks guys. :-)7

  5. #35
    Elite Member
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    Nov 2009
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    3,444
    Location
    USA
    Tractor
    Bobcat

    Default Re: Air Pressure in Loaded tires.

    Quote Originally Posted by Redgoatea View Post
    Nothing else had made me feel as good about not putting fluid in my tires as this thread. Thanks guys. :-)7
    I have not regretted it one minute since I had my tires loaded.....


  6. #36
    Gold Member
    Join Date
    Aug 2010
    Posts
    330
    Location
    On the Oregon coast
    Tractor
    JD 870

    Default

    Quote Originally Posted by lilranch2001

    I have not regretted it one minute since I had my tires loaded.....

    Haven't heard of any that have regretted it just a personal hang up I have. As time goes along and I learn more maybe I'll change my mind but right now it just seems like a bad idea to me. Why don't they sell them filled? How much extra wear does it cause? So on and so forth.

  7. #37
    Elite Member
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    Nov 2009
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    3,444
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    USA
    Tractor
    Bobcat

    Default Re: Air Pressure in Loaded tires.

    Quote Originally Posted by Redgoatea View Post
    Haven't heard of any that have regretted it just a personal hang up I have. As time goes along and I learn more maybe I'll change my mind but right now it just seems like a bad idea to me. Why don't they sell them filled? How much extra wear does it cause? So on and so forth.
    ok.... seems like a weird hang up, but to each their own, farmers have been filling tires since...... they changed from iron wheels to rubber tires?

    Manufacturers probably do not fill the tires for the benefit of the few of you who have the above stated weird hangup


  8. #38
    Gold Member
    Join Date
    Aug 2010
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    330
    Location
    On the Oregon coast
    Tractor
    JD 870

    Default

    Quote Originally Posted by lilranch2001

    Manufacturers probably do not fill the tires for the benefit of the few of you who have the above stated weird hangup

    Ya I'm sure they're making the whole wide world suffer for the convenience of a few "weird" people like me. Would you like me to personally apologize for the extra time and money you had to spend filling your tires? Cause it ain't gonna happen.

  9. #39
    Silver Member
    Join Date
    Aug 2009
    Posts
    235
    Location
    NW Georgia
    Tractor
    Kubota B3200

    Default Re: Air Pressure in Loaded tires.

    Quote Originally Posted by Redgoatea View Post
    Haven't heard of any that have regretted it just a personal hang up I have. As time goes along and I learn more maybe I'll change my mind but right now it just seems like a bad idea to me. Why don't they sell them filled? How much extra wear does it cause? So on and so forth.
    My owners manual has a section telling how full to fill them so I presume it does not void the warranty.

  10. #40
    Silver Member
    Join Date
    Aug 2009
    Posts
    235
    Location
    NW Georgia
    Tractor
    Kubota B3200

    Default Re: Air Pressure in Loaded tires.

    Quote Originally Posted by lilranch2001 View Post
    I am surprized someone hasnt brought up using nitrogen in the tires......


    Mine are filled mostly with nitrogen.

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