Breakout force?

[Ekim_Otsiam]

In the specs for my la481 loader is something called breakout force.Could anyone tell me what that means?

 

[hayden]

I think it's the bucket curl force, as opposed to the lift fource of the loader arms.

 

[jdkid]

Hi ya
Yep thats what i'm lead to beleave the crowd action of the bucket but i don't know where it's taken from, cutting eage or from ram ends
catch ya
JD Kid

 

[MJB]

I believe that "breakout force" is the loaders boom lift capacity at ground level, at least that is how the loader manual for my JD430 loader defines it. The manual also gives a seperate, much higher, lift capacity for bucket rollback. Hope this helps.

I love the smell of diesel in the morning. /w3tcompact/icons/smile.gif

 

[JimMorrissey]

MJB,

I believe beakout force is a combination of the lift capacity and the roll-back capacity of the loader. "More breakway/breakout force is achieved with the combined power of the loader lift and bucket (crowd-dump-fill) cylinders. The combination of a tractor/loader's weight, hydraulic lift capacity, loader design, traction all are important ingredients to determine how much "breakout" force the equipment may develop".

Also keep this in mind "Loader "cycle time" is very import as well. This is one of the main reasons the Kubota loaders are so good and "outshine" other brands. Cycle is the "no. of seconds it takes to raise a filled bucket to max, lift height, dump the bucket, lower the bucket back to a level position at ground level (ready to load again). You'll usually find that a Kubota tractor with Kubota loader is the fastest in the marketplace. Faster cycle time equals more work performed in a given period of time. Most of the "will fit --off brand loaders" and the other brand tractors/loader are much much slower than the Kubotas".

 

[MJB]

Here is a copy of the spec page for a JD460 loader. I think that it is clear from this that Deere defines breakout force as the boom lift capacity at ground level (Force vectors Y and Z in the drawing). If breakout force was a function of bucket rollback than the force at Y, the pivot pin, would be zero. You will notice that the bucket rollback force, which is only specified at a distance of 500mm forward of the pivot pin, is actually greater than the breakout force. Maybe Kubota specs their loaders differently. Hope this clears everything up.

I love the smell of diesel in the morning. /w3tcompact/icons/smile.gif

 

[JOR_EL]

Hi MJB, /w3tcompact/icons/smile.gif

Just want to "second" your opinion.

I also have the JD460 loader, and I interpret the spec sheet the same way you do. That "zero-force at Y" tells the tale. /w3tcompact/icons/wink.gif

Larry