Track pads

General help and support for your Lindeman through 2010 John Deere crawler
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gus
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Track pads

Post by gus » Mon Apr 20, 2009 7:06 pm

How much advantage to 14" vs 12"??

Will 40 pads fit a 420? Both 2 bolt and both meas approx 6". I did not meas rail notches. Are grouser pads readily available in very good condition??

Gus

Pistonman
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Post by Pistonman » Mon Apr 20, 2009 9:53 pm

Wider pads are harder on the U.C.

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CELSESSER
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Post by CELSESSER » Mon Apr 20, 2009 10:02 pm

Gus,
Go to the search in the uper right corner and type in "undercarrage" and "interchangability" and pick the one that has 40,420,430,440. it will tell you what interchanges.

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Ray III
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Post by Ray III » Mon Apr 20, 2009 10:47 pm

I was wondering too which has more traction, wider or narrower pad. With tires, fatter tires have less traction, but tires don't have grousers.

Deere rated the 420 and 430 at 4,862 lbs drawbar pull (1st gear). What pads did they use on the test machine?

jdemaris

Post by jdemaris » Tue Apr 21, 2009 8:31 am

Ray III wrote:I was wondering too which has more traction, wider or narrower pad. With tires, fatter tires have less traction, but tires don't have grousers.

Deere rated the 420 and 430 at 4,862 lbs drawbar pull (1st gear). What pads did they use on the test machine?
I'm not sure what good that type of info will do you. No track/pad configuration is best in all ground conditions. A smaller pad and/or shorter track has more PSI at ground contact but less friction surface and can do better on hard dirt, then bigger pads. You gain one way, and lose another. And, comparing flat loader-type pads to high-cleat dozer pads - I suspect flat pads will pull just as much and maybe more when on hard concrete - and of course - dozer pads will greatly out perform flat pads on dirt.

MC was tested on hard-packed dirt with 16 feet of tracks with 28 cleats that measured 11 3/4" by 1 3/4" high. Crawler had a weight of 4293 lbs. and had a max pull of 4226 lbs.

Terratrac GT30 had 15 feet of tracks with pads measuring 12" by 6 1/2" (no cleat depths given). Crawler weighed 4471 lbs. and had a max pull of 4518 lbs.

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Lavoy
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Post by Lavoy » Tue Apr 21, 2009 9:57 am

Wider pads give better flotation due to greater surface area. The main places you would have an advantage with 14" pads would be in snow and mud. When dealing with a soft medium, the more grouser you have, the more traction you will have. If you are talking dry conditions, and the dirt is harder, you really probably will not notice a difference.
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Tigerhaze
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Post by Tigerhaze » Tue Apr 21, 2009 11:11 am

Lavoy wrote:When dealing with a soft medium, the more grouser you have, the more traction you will have. If you are talking dry conditions, and the dirt is harder, you really probably will not notice a difference.
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I can vouch for that, considering how many times I have been stuck in sloppy stuff with worn triple bar loader track pads. :lol:
(1) JD Straight 450 crawler dozer with manual outside blade; (2) JD 2010 diesel crawler loaders; (1) JD 2010 diesel dozer with hydraulic 6-way blade; (2) Model 50 backhoe attachments, misc. other construction equipment

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Lavoy
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Post by Lavoy » Tue Apr 21, 2009 12:26 pm

Yes, but for the trouble you normally get in, grousers would just get you in deeper and faster! :lol:
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Ray III
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Post by Ray III » Tue Apr 21, 2009 12:44 pm

Thanks for the info, kind of what I figured.

Been thinking of welding grouser bars to the worn 14" snow shoes to make staggered grousers like the snow version originally had, would it give the best of all worlds by maximizing penetration in harder ground while having the flotation of the wide pad? Or should I just keep it simple and make it a full grouser?

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Lavoy
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Post by Lavoy » Tue Apr 21, 2009 3:11 pm

That's kind of personal preference, I would probably go all the way across for ease of installation.
Lavoy

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