Lifting Limit

[AndyMA]

Kubota MX

Could only get stump I dug out about 3 inches off ground

Several more to go

 

[Raul-02]

Crank the engine revs

 

[Hay Dude]

Be careful. When you do that it puts a great deal of stress on your front wheel bearings.

 

[oosik]

That should be enough to get it wherever it needs to go.

 

[Slowpoke Slim]

Try curling it back first. It may shift the midpoint of the weight back just far enough so you can carry it higher.

 

[BackRoad]

Might try to scrape as much dirt as possible from the root ball with your tines to lighten the stump weight. Can't tell, but it looks like what might be heavy wet clay?

My MX 6000 lifts what appears to be larger stumps, but I try to get as much dirt as possible off the stump and back into the hole before lifting, and I leave them to dry out if I encounter heavy wet dirt in the root ball.

Do you have the standard LA-1065A loader?

Also, how much does your grapple weigh? Greater the tare weight of the grapple > less the available load weight.

As someone mentioned above, I generally run 1800 to 2000 RPMs when using my EA 60" grapple which EA says weighs ~400#.

I don't have an actual photo of lifting this stump after limbing the tree...but we did. And it is similar in size of many stumps picked up and stacked on top of my brush piles with the MX.

 

[5030]

Crank the engine revs

Most likely it went into hydraulic bypass and like Hay Dude said, it's very hard on the front wheel bearings. I move round bales around all the time but that's not even close to capacity with my loader and I'm still careful when moving and never in FWA either.

 

[WranglerX]

Quite honestly stump does not look that big..... Probably need to up RPM to get more hydraulic power...
Do you have rear ballast?....
If you have the LA 1065 loader you should have about 1691 pounds lift ...

 

[2manyrocks]

Wrap a chain around it and drag it with the rear draw bar.

 

[ROUSTABOUT]

Push the stumps out of the way and let it rain on them a year. That's why I love a big ole Trac hoe. Pick them up about 20' and drop a few times, dirt falls off, burn better. Sometimes we dig a pit and burn them in the pit. I've moved stumps a lot bigger than that with a 100 HP skid steer. 5'-6' diameter stumps, tree diameter, stump was about 12' diameter, roots and all. It looks like you are doing too much with too little. Tie a chain around stump and drag it off and away. I wouldn't risk a broke front axle or a sheared pinion.

 

[LD1]

Is that a SGC1560 grapple? If so that thing is a beast at 820#(100# more if its a 72" grapple). So that is costing you some capacity, because a ~400# grapple is more than enough for a MX.

That said....I agree a little curl back would help, then lift

 

[LD1]

Quite honestly stump does not look that big..... Probably need to up RPM to get more hydraulic power...
Do you have rear ballast?....
If you have the LA 1065 loader you should have about 1691 pounds lift ...

View attachment 758352

Actually if you understand the specs, the 1600# is to max height.

At ground level.....3100# at 500mm is the spec (the breakout force). And to a midpoint....bout 5' high.....the lift capacity should be somewhere in between. Somewhere around 2300-2400#.

But having a grapple that is ~400-500# heavier than the standard bucket hurts the net capacity

 

[WranglerX]

Actually if you understand the specs, the 1600# is to max height.

At ground level.....3100# at 500mm is the spec (the breakout force). And to a midpoint....bout 5' high.....the lift capacity should be somewhere in between. Somewhere around 2300-2400#.

But having a grapple that is ~400-500# heavier than the standard bucket hurts the net capacity

That is why I quoted the 1600 pounds, figured it was limits was able to lift, and doubt stump is that heavy...

 

[2manyrocks]

A fresh stump with dirt embedded in the rootball is surprisingly heavy. If it doesn't want to budge, your tractor is telling you to back off.