I swapped my ag1 tires for titan multi tracs today and put the fronts with the valve on the inside. That way I have a wider track by perhaps 4 inches. Since my b7800 is pretty tippy I wanted to gain stability. Anyone try this before and what were the results. So far it seems more stable than the Ag1 tires and my rear turfs are not loaded, unlike the ags.
Art, I can't believe that you as a dealer who could be sued for altering a machine especially if it rolls over and kills someone could say something as stupid and irresponsible as the above. Yup I said it. People come here for relaible advice and you give them that
So explain how reversing any type of tire and rim to make the tractor front wider increases stability. before you waste your time I'll answer if for you: it doesn't. You still have the same tire footprint on the ground you still have the same front axle that pivots under the engine. Like I've said countless times you could make the front axle 20 feet wide and it would be the same as a 1 foot wide axle. Why? The axle pivots in the center with absolutely NO resistance in the form of a spring or some sort of suspension.
To answer the OP all you are doing is adding increased leverage by sevral times--5-10 times depending on where the bearing races are. And you are increasing many times times over the possibility for bump steer---which if ocurrs under the right circumstances such as high speed and a hole or bump could rip the steering wheel out of your hands or result in a broken or dislocated finger, or even flip the tractor over from it steering quickly to one direction
[QUOTE=earthwrks;171262] So explain how reversing any type of tire and rim to make the tractor front wider increases stability. before you waste your time I'll answer if for you: it doesn't.
You still have the same tire footprint on the ground you still have the same front axle that pivots under the engine.
Like I've said countless times you could make the front axle 20 feet wide and it would be the same as a 1 foot wide axle. Why? The axle pivots in the center with absolutely NO resistance in the form of a spring or some sort of suspension.
To answer the OP all you are doing is adding increased leverage by sevral times --5-10 times depending on where the bearing races are. [/QUOTE]
Jeff, how is it you cannot see how a wider front wheel track can add stability in the first three paragraphs above, but you can in the last one?
While I will agree with you that the axle pivots, BUT, there certainly are stops on it that will prevent it from rotating on that pivot when it reaches a certain point. If the tractor hits those stops before it rolls, and the axle is wide enough to keep the center of mass within the center of gravity at that point, it stays on it's wheels.
Think of a tripod, the wider the legs are splayed the further the Center of Gravity needs to be to exceed the balance and reach the tipping point.
The same applies with this tractor. If the axle hits the stops before the tractor reaches it's balance point it's only a big thrill, not a big spill!
The wider the front axle, the more likely it is the axle will hit the stops sooner rather than too late.
Using your admittedly exaggerated illustration above, a 1' axle would project 6" each side of the pivot, but a 20' axle would project 10' each side.
Which one do you think will reach the tipping point first?
Pics Join Date: Sep 2000 Location: Moravia, NY Posts: 1445
re: front turfs reversed
Width = Stability! You run the old narrow front ends on a side hill farm then then run wide front ends even with the pivot point you'll know the difference.
Pics Join Date: Oct 2005 Location: South Carolina Posts: 3432
re: front turfs reversed
Jeff, you do realize many especially two wheel drive tractors come with front axles to widen them. I realize maybe the biggest reason at least on some models it to match crop rows or such. I have changed the front end on Ford, Massey, Case and Kubota that were all two wheel drive. On those tractors it did not create any extra steering leverage as the linkage was made to do so. Now if I were to just add spaces between the hubs and the rims that might.
Along that note look up the potato harvester picture Murf posted a couple of weeks back and think on those spacer and front steering whip.
Never had drive a tricycle tractor but have lawn mower, give me the wider front end. I'm with Harvey.
Wow! I thought about the bearing forces but as my fronts are not loaded, the tread is multi directional, and I removed the loader, I thought it made sense for stability on a side hill. It feels way more stable than my ag1 tires but that could be just the width of the turfs.
So what I'm asking is where is the harm and does anyone do his or am I he only jerk. It's no sweat to swap back. Bearing wear?
The way I look at it is, if the manufacturer thought the forces were excessive, they wouldn't have [u[designed[/u] the rims in such a way as to be reversible.
As an example, we have some pretty wide set units for turf maintenance, some of them have 12k+ hours on them in that setup, no issues yet.
Cashey;
I've never reversed the front rims on my 4310 Deere, and I'm not real sure they can be to widen the stance. My reason being because the wider spaced front wheels can be a nusicance with the loader when trying to get close along side of something.
Perhaps the design of the steering arms, tie rods, etc were engeneered to stand the extra stress of the additional leverage they are dealt when the wheels are reversed, I don't know, that's another subject.