Posted by gotmyfarm! on February 03, 2019 at 06:57:00 from (184.100.3.88):
This warm morning I went out to the barn and could see on the rear tires how full they are with liquid. Just like sometimes you can see on the outside of your propane tank, how much propane is in there. I've never been able to see this before on the tires. With that zillion below zero weather we just had, maybe the calcium stuff in there almost froze and now it is can be seen as a cold mass against the warmer tires? I never knew how full they were. They look to be about 40% full. So I asked the computer how full they should be and this article said they used to recommend 75% full and now recommend 40%. And then it said that liquid ballast is not recommended in rear tires, only the fronts. Among the problems it cited is that it can cause "power hops". What is that? Below is the article. What do you guys have to say about any of this? I have noticed that sometimes when I stop the tractor, the tractor rocks back and forth in tune with the liquid sloshing around in the tires before it settles. Do most of you use liquid in the rear tires?
Using liquid ballast in tires
IMPORTANT:Liquid ballast is not preferred in rear tires. Liquid weight greatly increases tire stiffness at lower operating pressures and greatly reduces ride performance.
In some cases liquid will be needed in the front tires to achieve the correct weight splits with some implements for field operation and transporting.
CAUTION: Installing liquid ballast requires special equipment and training. See your John Deere dealer or tire service store.
IMPORTANT: Never fill any tire to more than 90% full. More solution could damage tire.
Use of water or calcium chloride solution can be used to provide economical ballast. A mixture of 3.5 lb. of calcium chloride per U.S. gal. (0.42 kg per liter) will not freeze solid above -50 F (-45 C). However, liquid ballast is not recommended because it results in harsh ride, difficulty in handling, spills if flats occur, and when used in rear tires can result in greater susceptibility to power hop.
CAUTION: Avoid possible injury due to losing control of tractor. Limit transport speed to 20 mph (32 km/h) when using liquid ballast.
Note:
Use of alcohol as liquid ballast is not recommended. Calcium chloride solution is heavier and more economical.
IMPORTANT: A maximum liquid fill of 40 percent is recommended in rear tires for better tractor performance instead of the previous recommendation of 75 percent fill. Fill tube-type or tubeless tires up to valve level (40 percent full) with valve (A) shown above, in the 4 o'clock position. When putting liquid in either front or rear tires, make sure both front tires have the same amount of liquid fill and/or all rear tires have the same amount of liquid fill.
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