Mx5800 FEL lift

Beaudeane · Nov 7, 2018

I was cutting and pulling out some big blown down oak trees to take to the saw mill last couple days. Couple of the logs were cut pretty long and very heavy. Made me tighten up on the seat with the teeter totter effect I was getting while moving them with the grapple. On my trail thru the woods there was a huge rock I decided to dig out. It was sticking up above the ground a foot or so. I used the grapple and got it out of the ground. It was as big as a rear wheel on the tractor or bigger. The tractor wouldn’t lift it to move it. Was a push it outta the way deal to get it moved. I had a 6 ft bush hog on back for counter weight. Was thinking the FEL shoulda lifted the rear of the tractor while trying to lift the rock rather than the relief valve to kick in, but it wouldn’t. Probably safer that it didn’t. Does it sound like the pressure is set low because of not lifting the rear off the ground or am was asking too much for it to have lifted it? I have never checked nor do I know how to check the hydro pressure on my tractor. I’m guessing the rock weighs well over a ton. Seemed like the relief was kicking in while trying to lift it. I had the rpm set up to the 540 pto setting. Thanks for any insight in advance

russell.still.5 · Nov 7, 2018

My guess is that you pressure is correct. A rock that size probably weights well over a ton. It’s a safety relief valve to keep you from messing up your loader or tractor. If it did pick up the rear wheels the weight of the tractor, loader and bush hog would have been all on the front axle of your tractor and that’s a lot of weight.

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edritchey · Nov 7, 2018

I have about 2000 of ballast on mine and move skids about the same weight or just slightly more with my fork attachment all the time with our MX5800 I’m guess you didn’t have enough ballast and the bypass was going for that reason or that Rock was a lot heavier then you thought it was.

majorwager · Nov 7, 2018

Beau.

A rock about the size of the rear wheel !!

So on average the rock weighs 150 to 170 lbs per cubic foot, type dependent.

Could be 15 to 20 cubic feet of mass in that rock. Even taking the lowest values noted above, that rock exceeds the capacity of your loader.

The 5200 and 5800 rated loader capacities were reduced from previous 5000 series. The emissions equipment required the carrier be extended forward from the enginge block to the bumper. Then to keep loader reach the same as previous series, lift capacity suffered slightly.

Bottom line, suggest your capacity is fine, your appetite for loader overload seems to be the issue.

When I have a big rock to move, I don't. My lull will carry it, but to what end?

So I dig a deep hole next to the rock right where it sits. Push, Cover, forget about it. My climate is cold so the bottom of the rock is always well below frost line, insures heaving not a future issue.

I dont want to lift more than a ton w/ my Kubota, have little use for a two piece tractor !!

Beaudeane · Nov 7, 2018

10-4. Yes it was a big ol rock. Will put the BH on & bury it off the trail. Thx guys

SidecarFlip · Nov 7, 2018

Take the BHog off the back (which is a cantalievered weight and it will lift the back wheels, My M 9 has cast iron factory weights on each wheel and I can still loft the them if I get over zealous. My 105 don't. Easy to check hydraulic pressure. Buy a liquid fill gauge, 0-3000 psi. some fittings and a quick coupler and snap it on a line and energize that line, you'll see right away the pressure produced I keep a fitted gauge in the tractor to check the hydraulics on my balers. Hardware store won't have what you need but any hydraulic supply place will as will Parker Hydraulics.

Jchonline · Nov 7, 2018

Also consider the weight of your grapple. Not sure which you have, but they an weigh 300-800 lbs depending on the brand/type. That takes away from the FEL lift capacity. You could try pallet forks, but it does sound like you had a really big one. My M62 lifts just under 3 tons a bit off the ground...and that rock as big as a tractor wheel was probably too much for my machine.

Sapper50 · Nov 7, 2018

Yup
Those are leaverite rocks

We have em here in Western Washington and I run the same base platform (L6060) as yours
Leaverite there where you found it

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Beaudeane · Nov 8, 2018

That’s a Leaverite there rock, that’s perfect. Lol thx for the laugh

lugbolt · Nov 9, 2018

Need a bigger tractor if you expect to lift stuff like that.

Either that or an excavator.

Be careful with it...real easy to tip a tractor over and even easier to KILL yourself by a load rolling back off of the loader.

Jchonline · Nov 9, 2018

lugbolt said:
Need a bigger tractor if you expect to lift stuff like that.

Either that or an excavator.

Be careful with it...real easy to tip a tractor over and even easier to KILL yourself by a load rolling back off of the loader.

Agree, keep it as low as possible.

Mister · Nov 9, 2018

Here's how I moved a large one recently, with the same tractor. Old car hood under it and chains. Worked pretty well, and I moved it a half a mile

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Mister · Nov 9, 2018

And here's another one I moved. Pallet forks work better than the FEL generally. Notice the big rock on the right in the distance. That's the huge one I dragged over on the car hood and set there

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Mx5800 FEL lift

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