When does 4wd become less important with a utility tractor?: Tractor Projects  -- General Tractor Discussion Forum and Review When does 4wd become less important with a utility tractor?: Tractor Projects -- General Tractor Discussion Forum

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 01-14-2000, 00:00 Post: 11962
CaseyR



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 When does 4wd become less important with a utility tractor?

At what size tractor does 4wd become less important when doing loader work? Most users have indicated that 4wd is pretty much essential with smaller compact tractors. Others have indicated that one can get better value by spending the same money for a larger 2wd ag tractor. I notice that the large loader/excavator rigs such as the Case 580s and the Cat 310s are rear wheel drive only, so at that size, 4x4 must not be critical.






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 01-14-2000, 00:00 Post: 11963
Paul Fox



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 When-does-4wd-become-less-important-with-a-utility-tractor?

Generally, traction is the main consideration, and that is determined in large part by weight. Where to draw the line is varies with the intended use. It will be interesting to see the range of responses you get, but as a SWAG (Scientific Wildly Approximate Guess) I'd say somewhere around 5000 pounds.

You can add weight to a 2wd utility and get some benefits, by filling the rear tires with Calcium Chloride and/or adding bolt on weights. On smaller compact utilities, you are limited by two factors: How much weight the axles/transmission can handle, and how much flotation the rear tires provide. Too much weight on two narrow a tire will get you in a jam in wet conditions.






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 01-14-2000, 00:00 Post: 11965
By the Brook Farm



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 When-does-4wd-become-less-important-with-a-utility-tractor?

A Case 580 is not a large excavator, either is a Deere 310, and a lot of these actually are 4wd. 20,000lb John Deere Ag tractors have 4wd. It is for traction, not loader work. If you need 4wd because your butt end is sticking in the air and you have no traction, you should probably get off that machine before you kill yourself. Think about it..what the heck does 4wd have to do with how much you can lift?? So you have MFWD and you are creeping along with your tractor overloaded, your rear wheels barely touching the ground..not a pretty sight. The lift capacity of a JD 420 or 460 loader is the same on a MFWD tractor as it is on a 2wd. But, if the ground is muddy and mucky or covered with snow, yes MFWD will be an advantage..it will give you more traction in those conditions...that is why you want 4wd.






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 01-15-2000, 00:00 Post: 11967
Paul Fox



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 When-does-4wd-become-less-important-with-a-utility-tractor?

What you say is true, especially about the overloaded part. However, I have a JD 750 with MFWD, and I spend a lot of time with it engaged. Case in point: brush hogging. I run a 5' Woods M5 with it, and in relatively light mowing conditions (essentially just 3' weeds and grass) I end up spinning the rear wheels even on dry ground, and using MFWD. Under these conditions, the tractor is certainly not overloaded in terms of either gross weight or power requirements. The big problem is that it weighs in the neighborhood of 1800 pounds sopping wet, and has trouble putting it's power on the ground. This is where MFWD really shines. And trust me, you can get just as stuck with a MFWD as you can without. Maybe more so, due to overconfidence. (Yes, this is The Voice of Experience speaking! Wink yeah right






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 01-15-2000, 00:00 Post: 11968
By the Brook Farm



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 When-does-4wd-become-less-important-with-a-utility-tractor?

Yep, like I said, 4wd is for traction...






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 01-15-2000, 00:00 Post: 11969
Jeff in NY



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 When-does-4wd-become-less-important-with-a-utility-tractor?

Paul, I grew up learning that the SWAG acronym stood for different words. Thanks for giving me a more socially acceptable alternative definition. (I learn so much on this board.)






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 01-15-2000, 00:00 Post: 11972
Paul Fox



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 When-does-4wd-become-less-important-with-a-utility-tractor?

Yeah, me too, Jeff, but I didn't figure it would fly on this forum Smile






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 01-16-2000, 00:00 Post: 11983
JonB



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 When-does-4wd-become-less-important-with-a-utility-tractor?

Paul, what kind of tires are on your JD 750? I've a 4100 w/ R-1's, and the 4WD is absolutely necessary when scraping or ripping, and sometimes with mowing. I've never felt 4WD was absolutely necessary for loader work, but seems to help get a bigger bite from a pile of gravel or dirt. 2WD works well in mowing, except when the field is slippery or going uphill. I'm usually closer to 2300 lbs, but I agree with you and Brook entirely. It wouldn't be half the machine it is without 4WD. JonB






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 01-16-2000, 00:00 Post: 11985
Paul Fox



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 When-does-4wd-become-less-important-with-a-utility-tractor?

It still has the original Firestone ag tires on the back, but they're getting pretty tired (Eew, terrible pun, sorry Smile as you might imagine. I replaced the fronts a couple of years ago, too many miles running up and down paved roads. Haven't priced rears yet, but I expect it'll be fairly depressing when I do.






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 01-16-2000, 00:00 Post: 11989
Nuclear_Weapon7



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 When-does-4wd-become-less-important-with-a-utility-tractor?

4wd is good for tractors of all sizes, even for tractors having 100's of HP and lots of wieght. But some tractors have a lousy front end, their axles or drums heat up after exteneded use e.g. Belarus tractors
Nuclear_Weapon7.
Hyderabad,
Sindh,
PAKISTAN.






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Projects Forum

Thread 11962 Filter by Poster:
Bird Senter 1 | By the Brook Farm 2 | CaseyR 1 | Greg Birky 1 | Jack in IL 1 | Jeff in NY 1 | JonB 1 | Kim Hartshorn 3 | MichaelSnyder 3 | Mk62 1 | Nuclear_Weapon7 1 | Paul Fox 5 |




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