npalen
Elite Member
I've mentioned it before with very little agreement that liquid in tires may increase the chance of a full rollover rather than just a roll to the side.
What causes tractor rollovers?
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scootr
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I'm not convinced - do have some data to share?
npalen
Elite Member
No data. (LOL) Just a theory that the liquid weight in the tires is going to quickly slosh to the "topside" of the outside tire when the tractor is at 90 degrees in the rollover. Does the liquid weight tend to push the tractor over to 180 degree? Its a bit of a catch22 as one could say that the tractor with weighted tires wouldn't have rolled in the first place.
I don't know, its just speculation.
scootr
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The tires are filled as much as 75%. So the actual slosh factor would be minimized and not sudden in my opinion.
You can test your theory by tipping over a roundish tupperware container (or such) then filling it with some water and repeat.
You can test your theory by tipping over a roundish tupperware container (or such) then filling it with some water and repeat.
Vigo327
Platinum Member
I could see an argument that filled tires make it less likely to get any wheels up off the ground in the first place, but shortly after getting any wheels up they're going to make it worse.
My thinking is that by the time the tractor even gets close to an angle that could turn into a rollover, it will usually have momentum to its rotation. At that point the outer/upper filled tire has hundreds of lbs of weight with momentum going in the rollover direction, exacerbated by it being at the greatest distance from the fulcrum/axis about which it is rolling. The inner/lower tire has the same weight but is so close to the fulcrum/axis that the inertia it presents to the rolling motion is not helpful.
It would be a bit like the thing where you hold an axe up in front of you with your hand at the very bottom of the handle and start letting the axe head drop towards your face. If you let it get much momentum you have a hard time not taking axe to the face. Now put on a glove that weighs as much as the axe head... not much help, eh? That would be like what the filled tires are doing once you get some momentum going in the roll direction.
This is still conjecture though. I'm not certain filled tires make it worse.. just can see a plausible argument.
My thinking is that by the time the tractor even gets close to an angle that could turn into a rollover, it will usually have momentum to its rotation. At that point the outer/upper filled tire has hundreds of lbs of weight with momentum going in the rollover direction, exacerbated by it being at the greatest distance from the fulcrum/axis about which it is rolling. The inner/lower tire has the same weight but is so close to the fulcrum/axis that the inertia it presents to the rolling motion is not helpful.
It would be a bit like the thing where you hold an axe up in front of you with your hand at the very bottom of the handle and start letting the axe head drop towards your face. If you let it get much momentum you have a hard time not taking axe to the face. Now put on a glove that weighs as much as the axe head... not much help, eh? That would be like what the filled tires are doing once you get some momentum going in the roll direction.
This is still conjecture though. I'm not certain filled tires make it worse.. just can see a plausible argument.
^^^^^
By the time it gets to the point you are talking about though, you’re screwed anyways. Consider the amount of extra force it’s going to take to bring those tires past the point of no return to begin with, vs unloaded tires.
My tires are NOT loaded; and I had some serious issues before I bought wheel weights. It still comes up too easily, but nowhere near as bad as it was. I was disking a side hill one day and had to be careful as the rear on the uphill side wouldn’t stay on the ground. That 600 lb harrow on back doesn’t do a thing for weight when it’s not in the air.
By the time it gets to the point you are talking about though, you’re screwed anyways. Consider the amount of extra force it’s going to take to bring those tires past the point of no return to begin with, vs unloaded tires.
My tires are NOT loaded; and I had some serious issues before I bought wheel weights. It still comes up too easily, but nowhere near as bad as it was. I was disking a side hill one day and had to be careful as the rear on the uphill side wouldn’t stay on the ground. That 600 lb harrow on back doesn’t do a thing for weight when it’s not in the air.
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Vigo327
Platinum Member
Yeah, i can see arguments both ways and with no personal experience one way or the other i'm just not sure..
But i HAVE noticed that 3pt implements dont help when the 3pt is in float. If it's not in float they do something, but if it is in float a rear tire can come up quite a ways before the 3pt 'bottoms out' and starts to hold you back any.
But i HAVE noticed that 3pt implements dont help when the 3pt is in float. If it's not in float they do something, but if it is in float a rear tire can come up quite a ways before the 3pt 'bottoms out' and starts to hold you back any.
ROUSTABOUT
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No drives cause most roll overs.
npalen
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What is a “no drives”?
scootr
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Do liquid tires cause (full) rollovers? And his answer is simply no - drivers cause rollovers.