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 | David Jesse
Join Date: Posts: 1 
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1999-05-10 3648
There seems to be a sizeable difference in the front loader statistics of otherwise similiar models from NH, JD and Kubota. Specifically, I'm comparing a TC33D, L3010 and 4300, with Hydro and a loader. The two stats that I'm wondering about are breakforce and lift capacity. Looking at the spec sheets the JD seems to have an advantage in this area. I'm trying to determine the acuraccy and relevance of these numbers. Can anyone help this newbie? The biggest difference is in "breakforce". What does that really mean?Here are the numbers: JD 4300 w/420 loader - breakforce 2,693 lb/ft - lift capacity 1,195 lbs.NH TC33D w/7308 loader - breakforce 1,602 lbs. - lift capacity 800 lbs.Kubota L3010 w/LA481 loader - breakforce 1,951 lbs. - lift capacity 1058 lbs.
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| guest
Join Date: Aug 2017 Posts: 0
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1999-05-10 3651
You need to look at the JD specs very closely. They take their measurements at the pivot pin, not at the cutting edge of the bucket like Kubota and NH. If you add the additional 24 inches further away from the pivot pin, you reduce the lifting capacity by at least 20% to 25%. It is very important to compare apples to apples when comparing loaders, and really look closely at how and where capacities are determined. ....
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| Mike
Join Date: Posts: 1
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1999-05-10 3655
I had the same questions. Another thought on the issue is tractor weight. If you have a 2000 pound tractor and you try to lift 1200 pounds with a front loader..... I would think you would end up on your nose.? Does the lift capacity vary with rear weights? ....
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| johnny
Join Date: Jul 2003 Posts: 11 hugo,ok
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1999-05-12 3752
Loader breakout is measured at the cutting edge with the bucket near ground level. Lift capacity is what the loader will lift to full height. ASAE specifies how to measure both values and would expect JD follows industry standards. ....
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| guest
Join Date: Aug 2017 Posts: 0
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1999-05-14 3835
The manual for my 410 loader on a 4100 also has the specs for 420 loaders.For a 420 loader on a 4300 the breakout force is 2693lbf at the pivot pin and1936 lbf at the cutting edge which is 20" in front of the piviot pin.The lifting capacity goes up about 200 lbs from the 4200 tractor to the 4300.I think the lifting capacities given in manuals are controled by the hydraulics,assuming that the tractor is addequately ballasted. ....
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| guest
Join Date: Aug 2017 Posts: 0
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1999-05-14 3836
The manual for my 410 loader on a 4100 also has the specs for 420 loaders.For a 420 loader on a 4300 the breakout force is 2693lbf at the pivot pin and1936 lbf at the cutting edge which is 20" in front of the piviot pin.The lifting capacity goes up about 200 lbs from the 4200 tractor to the 4300.I think the lifting capacities given in manuals are controled by the hydraulics,assuming that the tractor is addequately ballasted. ....
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| guest
Join Date: Aug 2017 Posts: 0
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1999-05-14 3843
The lift capacity is what really matters. Things get weird with the stablity of your tractor if you are lifting anything above a third of your tractor's weight if you don't have a counter weight. Think of breakout capacity as your safety factor as your load you are lifting is moving (going up!). Moving loads have a shock effect, the practical expression is that it will make a load seem much heavier (get on an elevator by yourself and jump - the car will move!). The larger the difference between the max load & the breakout, the better the safety factor against bending something on your loader. As far as what was said earlier, the breakout force should be measured from your bucket, where the load is. As as it being from ground level, true. That is where your bucket has the greatest reach from the tractor & pins on its "elbow". The longer the reach to the pins, the more the load will be magnified (leveraging).Lee ....
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