Tires Help loading tires...front & back?

   / Help loading tires...front & back? #11  
The manual for my Kubota L4400 4wd says several times _not_ to put fluid ballast in the front tires. No explanation is given.
 
   / Help loading tires...front & back? #12  
Hmmm, interesting. I do have my fronts filled and have had absolutely no ill effects. My 990 owner's manual makes no statement one way or the other whether or not to fill the fronts with liquid ballast. It does talk about the suitcase weights that are available to hang on the front (as I'm sure all tractor manuals do).

It is obviously OK to add weight to the front, so what possibly difference could there be to the driveline whether that weight is hanging off the front as cast iron weights or lives inside the tires as liquid??? Either way you are giving the fronts more bite and more traction. In fact, the suitcase weights should theoretically be more harmfull because their weight is felt by the front wheel bearings where liquid ballast isn't. Also, what about adding or removing a loader - that will make way more difference to the traction of the front end than having filled tires or not.

Personally, I'm not the least bit worried about damaging anything. As far as steering control, I expect the only time it could possibly be negatively affected is at high speeds (heavier wheels having stronger gyroscopic effects), but I don't think our machines go fast enough to really make any difference. I certainly haven't noticed any difference at all between loaded and unloaded tires running down the road at top speed (and I bomb around at full speed quite a bit).

There's my $0.02 /forums/images/graemlins/tongue.gif
 
   / Help loading tires...front & back? #13  
Here's something interesting that I found. Not just about front wheel, but all wheels.
</font><font color="blue" class="small">( Is liquid ballast headed down the drain? Michelin gives nod to iron

Liquid farm tire ballast may be going the way of the oxen-pulled plow on many American farms, according to Tod Gillespie, North American marketing training manager for Michelin North America Inc.

Running a liquid-filled tire "is like playing with a basketball that's half-filled with water," he says. Liquid "doesn't distribute the weight where it needs to be."

A more effective solution is hanging cast iron weights on tractors and other machines, he says. "The objection you might see is the price of cast iron; it's about $1 a pound. But the cost over the life of the machine and the tires" makes its worthwhile.

"We believe cast iron is the way to go. We reinforce that through our training." )</font>
 

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