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  1. #11
    Super Member Farmwithjunk's Avatar
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    Where do I begin.....

    Default Re: calcium filled rears presssure adjustment

    Quote Originally Posted by Powerhorse View Post
    Anyone know where I might obtain a pressure gauge to work with cacl filled tires?
    TSC....NAPA....Valu-Bilt....Shoup.....Agri-Supply.....Any GOOD farm supply dealer......
    There are three kinds of men;
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  2. #12
    Gold Member North Country's Avatar
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    Default Re: calcium filled rears presssure adjustment

    Quote Originally Posted by North West Farmer View Post
    Milkman,

    You are correct, if the person filling the tire has done his job correctly there should not be any calcium solution above the stem. Unfortunately, too often when the tire has been filled they have pumped more liquid into the tire than it should contain and when that has occured, jacking the tire off of the ground does not solve the problem of the liquid level being over the stem. Very often, after I have had a tire replaced, when I have blocked the axel up, thus lifting the tire off of the ground and when I depress the valve core, I get nothing but liquid from the tire. Not something you like to have happen.

    That is why it is so very important that they do not pump more fluid into the tire than is the correct amount to prevent covering the stem area. I would say that I find tires that have been serviced to be over filled with liquid at least thirty percent of the time. Most service folks don't take the time to be as carefull as desired and I guess they think more is better than less or something.

    An issue we farmers are aware of and need to be prepared to deal with, the tire that has been over filled with liquid.

    Nick, North West, Farmer
    Hmmm. I always heard exactly the opposite - keep the rims covered when using CaCl to prevent corrosion at the air/liquid interface. From Firestone AG's website:

    "Fluid fill should be maintained at a level sufficient to cover the valve and keep the rim completely submerged"

    Your mechanics think they're doing it correctly to prolong the life of your rims.

    http://www.firestoneag.com/tiredata/...fo_hydro_1.asp
    NC

    My hills have hills.

  3. #13
    Silver Member roman's Avatar
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    Default Re: calcium filled rears presssure adjustment

    I added air and the valve stems are leaking. A stream of calcium comes out. I was able to make it slow to a dribble. I put the caps back on to stop the flow. I will pick up some new valve stems today. Maybe the stems are just plain old and worn out.
    How do I let air out of the tire when all I get is calcium??

    North Country - Thats interesting news but I couldn't open the link...
    Ford 1720, Sims cab, FEL, Woods subframe backhoe, Fisher 7' hydro angle plow, Wallenstein 3 pth splitter, 5' blade, 3 pth carry-all, 3 pth ballast

  4. #14
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    Default Re: calcium filled rears presssure adjustment

    North Country,

    As in so many things, I am always learning something new when I thought something else was the correct or different than I understood it to be.

    None of my tractors containing a calcium solution are mounted in a tubeless manner. All fluid filled tires have tubes, thus there is no calcium solution-air interface issue.

    I was not able to open the information link you attached regarding calcium filled tires.

    I was trying to visualize the action of the fluid and air in a tire when the vehicle is in motion and it seemed the only time you could be assured the metal portion of the wheel was not exposed to air and fluid as the liquid splashes around inside the tire would be when the vehicle is standing still. Naturally, I was thinking in terms of a tubeless tire situation.

    I will research this futher so I can get this clear in my aging mind.

    That's what makes these forums great, is the learning and understanding that is made available for free if we keep an open mind.

    Thanks North Country for your input.

    Nick, North West Farmer

  5. #15
    Gold Member North Country's Avatar
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    Default Re: calcium filled rears presssure adjustment

    The link no longer works for me either, but it was a page describing how to fill tires using an adapter they had. You can use google's cache feature to read the text:
    http://webcache.googleusercontent.co...&ct=clnk&gl=us

    NW - yes, the rim would only be fully covered when the tractor is sitting still. For a 500hr/yr tractor, this is about 95% of the time.

    My tires are filled without tubes. I honestly don't know if the stem is covered or not; I didn't check after they were filled. With RimGuard (beet juice) I'm not as worried about corrosion as I would be with CaCl. I "verified" the fill by noticing that they were a boatload heavier than when I dropped them off.
    NC

    My hills have hills.

  6. #16
    Silver Member
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    Default Re: calcium filled rears presssure adjustment

    North Country,

    The link that came along with the e-mail from TractorBtNet.com did show the information on filling tractor tires with fluid. Unfortunately, none of the pictures described in the material came through so I had to use my imagination on them.

    Thank you for your extra effort and assistance!

    Nick, North West Farmer

  7. #17
    Veteran Member RaydaKub's Avatar
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    Default Re: calcium filled rears presssure adjustment

    Nick, North West Farmer
    I'm curious as to why you say it is properly filled just below the top of the rim and improperly filled if it is above that. What is the problem you foresee if it is over filled? I just filled my BX tires this week (only with washer fluid) and got them over full (by your defnition). Am I missing something? Thanks.

  8. #18
    Silver Member
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    Default Re: calcium filled rears presssure adjustment

    RaydaKub,

    Since I made that comment, I have found out, via this thread that filling the tire over the stem is actually the official method prescribed by tire manufactures. The reason for this, as I understand it, is that by filling over the stem and the rim as well you reduce the air liquid interface on the wheel. This is primarily important if the tire is mounted in a tubeless manner since it is in that air fluid interface that corrosion is maximized in the form of oxides that are decomposing in nature.

    When the vehicle is in motion, there is increased opportunity for the chemical oxidation interface to occure. Since the tire is filled over the rim, the chemical interface potential is reduced and it is eliminated while the vehicle is standing still. The idea behind the filling over the rim and/or valve stem is to reduce damage to tractor wheels as much as possible.

    If the tires are mounted with tubes, the tube provides a division between the chemical solution and the air in the tire. This being the case, the fill level is not such a significant factor. The tube contacts the wheel, not the fluid/air contents.

    My original thinking was based on my own experience in checking air pressure and/or removing or adding pressure to the tire. If the calcium cloride solution is filled above the valve stem, you get a solution flash back each time you compress the valve core if you are not adding air pressure. The result is some spillage or leakage of a chemical liquid that is corrosive to anything it contacts other than materials that are resistant to the chemicals, for example: glass, many plastics, some paints. Items that can be damaged by the calcium cloride would be you, your clothing, bare metal, most paints and so on. The solution is very inflamatory to your mucous membranes, like your eyes, your mouth and any other similar sensitive areas. Your skin is negatively affected by it and any open wounds or sores immideately sting with contact.

    My experience in working with calcium cloride filled tires for many years is that you have greatly reduced problems if the liquid fill level is kept just below the valve stem. It is possible to check tire pressure, reduce pressure or increase pressure without spillage and exposing yourself or the surrounding envirnment to the corrosive affects of the calcium cloride solution.

    My years of experience has worked for me, but it is a practice that is in opposition to the tire industry that recommends filling over the wheel and valve stem. That's how we can get into conflicts on forums such as this. You believe you know the answere, but you are not necessarily correct.

    The good side of it is that forums such as this are fantastic sources of information and if we don't run across the wrong source we have great opportunities to learn how to do tons of things the best possible way and we my be lucky enough to learn why it is important to do it that way. This is a very good example of this process in action.

    Nick, North West Farmer

  9. #19
    Gold Member North Country's Avatar
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    Default Re: calcium filled rears presssure adjustment

    Quote Originally Posted by North West Farmer View Post
    My experience in working with calcium cloride filled tires for many years is that you have greatly reduced problems if the liquid fill level is kept just below the valve stem. It is possible to check tire pressure, reduce pressure or increase pressure without spillage and exposing yourself or the surrounding envirnment to the corrosive affects of the calcium cloride solution.

    My years of experience has worked for me, but it is a practice that is in opposition to the tire industry that recommends filling over the wheel and valve stem. That's how we can get into conflicts on forums such as this. You believe you know the answere, but you are not necessarily correct.

    The good side of it is that forums such as this are fantastic sources of information and if we don't run across the wrong source we have great opportunities to learn how to do tons of things the best possible way and we my be lucky enough to learn why it is important to do it that way. This is a very good example of this process in action.

    Nick, North West Farmer
    This could be one of those things where the academic in the tire lab says "keep them filled above the rim" and the end user in the field says "not on my tires! It's a pain in the...."

    And from such discussions are the great armchair debates born.
    NC

    My hills have hills.

  10. #20
    Silver Member
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    Default Re: calcium filled rears presssure adjustment

    North Country,

    I hate to say it, but I might be turning into one of those arm chair debators.

    Have only been a forum member for a few days and look what I have come to.

    Nick, North West Farmer

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