Definition of Tractor Loader Breakout force ?: Kubota Review  -- Kubota Tractors Discussion Forum and Review Definition of Tractor Loader Breakout force ?: Kubota Review -- Kubota Tractors Discussion Forum

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 10-22-2005, 12:35 Post: 118271
tractornewbie



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 Definition of Tractor Loader Breakout force ?


I read it all the time and don't know quite what it means.

Can anyone explaing this using an example?

Thanks,

DT.






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 10-22-2005, 15:19 Post: 118274
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 Definition of Tractor Loader Breakout force ?

Breakout force is the force available to lift the FEL at the bottom of the pile for example with the cylinders fully retracted. For example an articulated wheeled loader may have a breakout force that exceeds the rear weight of the loader. When you apply the lift or curl the back end can lift before the material falls off or out of the full bucket. The force exceeds the lift capacity of the tractor.






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 10-22-2005, 20:26 Post: 118283
Art White



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 Definition of Tractor Loader Breakout force ?

Breakout force is where any cylinder at power can no longer repond.






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 10-23-2005, 16:40 Post: 118325
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 Definition of Tractor Loader Breakout force ?

It is the maximun force the bucket can curl at the cutting edge using the curling function of the joystick.






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 10-24-2005, 10:40 Post: 118357
Murf

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 Definition of Tractor Loader Breakout force ?

Art has it correct, but not very clearly.

Maybe a better way to describe it would be to say it is "the maximum amount of upward force the FEL can generate using all of it's hydraulic circuits combined".

BTW, it is often a very misleading term since the lift & curl circuits are not capable of generating 100% of their independant power if used together, yet some manufacturers still "calculate" the breakout force by adding the maximum curl to the maximum lift capacities.

Best of luck.






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 10-24-2005, 10:47 Post: 118360
tractornewbie



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 Definition of Tractor Loader Breakout force ?


Thanks for the info.

If breakout force is the maximum upward force, then why is that number different than the maximum lift capacity in the specs?

What's the difference?

Thanks again,

DT.






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 10-24-2005, 11:06 Post: 118362
Murf

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 Definition of Tractor Loader Breakout force ?

DT, breakout force is measured such that it includes ALL the forces available to the bucket to scoop up some material, not just the lift cylinders.

With my L4310 for example, it will (in theory) lift 1,874 pounds in the center (fore & aft) of the bucket, but is rated at 3,125 pounds breakout force.

This is because curling the bucket won't help you lift something, but on the other hand, the combination of curl and lift will make a huge difference in breaking a scoop of dirt out of a pile for instance.

Clearer now?

Best of luck.







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 10-24-2005, 11:25 Post: 118364
tractornewbie



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 Definition of Tractor Loader Breakout force ?


Yeah thanks Murf.

I understand now.

DT.






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 10-24-2005, 14:52 Post: 118370
dieselpusher



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 Definition of Tractor Loader Breakout force ?

Break out force is the weight that the bucket can curl or roll back.






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 10-24-2005, 20:37 Post: 118386
Art White



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 Definition of Tractor Loader Breakout force ?

Now to go a step further as you are all right but on some occasions cylinders do need power on in and out strokes and with different uses both push and pull and they all have a certain breakout force that can be rated on either end.






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Discussion Boards > Active Subjects > Messages as Posted > Kubota Review Forum

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