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Thread: use backhoe as a crane?

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    Default use backhoe as a crane?

    thoughts on lifting a 5,000 lb mill with the backhoe to get it off a trailer?
    tips and tricks?

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    4 Star General dmetalmiki's Avatar
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    Why not use ramps and rollers?, Safer and more under control. (In conjunction with the tractor perhaps).
    (I mean, There are back hoes and there are back hoes!..you don't actually say what machine it is fitted on)
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    Quote Originally Posted by dmetalmiki View Post
    Why not use ramps and rollers?, Safer and more under control. (In conjunction with the tractor perhaps).
    (I mean, There are back hoes and there are back hoes!..you don't actually say what machine it is fitted on)

    sorry, referring to my FLU419, I forget there are other vehicles included in this forum. I'd feel most comfortable picking it up and moving it with the Front Loader but I think the max weight for that is 3k lb. my trailer doesn't have ramps that would work well for rolling off, i think picking it straight up and then driving the trailer out is going to be the best for me. I'll probably move it around the shop on pipes/rollers though.

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    What the lifting cap of the back hoe??
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    Quote Originally Posted by jasonjc View Post
    What the lifting cap of the back hoe??
    not sure. digging force = 10,000 lb

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    Will it do it? Maybe, but I would have a backup plan.
    5000lb is a lot and the backhoe hydraulics are not designed for load holding (they will drift down over time). The backhoe cylinders are positioned to apply max force digging into the ground, not lifting up. With the boom vertical and the dipper horizontal, you don’t have much mechanical advantage on the boom so it will try to sag or at least not seem stable. I certainly would not try to swing it left or right as that would move too fast. I have picked up 2000lb with the backhoe, but I much preferred my old knuckeboom.

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    Quote Originally Posted by Speedwoble View Post
    Will it do it? Maybe, but I would have a backup plan.
    5000lb is a lot and the backhoe hydraulics are not designed for load holding (they will drift down over time). The backhoe cylinders are positioned to apply max force digging into the ground, not lifting up. With the boom vertical and the dipper horizontal, you donít have much mechanical advantage on the boom so it will try to sag or at least not seem stable. I certainly would not try to swing it left or right as that would move too fast. I have picked up 2000lb with the backhoe, but I much preferred my old knuckeboom.
    thanks guys. i think i'm going to build a ramp off the back of the trailer with solid support to the ground every 12" or so and then borrow a pallet jack and use a come-a-long to help control the decent down the ramp.

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    It wont lift 5000. It will bypass. Maybe 4 on a good day in close
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    Using a backhoe as a lifting, excavating machine is what the machine is designed for. The mechanical advantage is limited by the weight of the machine and the lever to which when extended is reduced by distance of the center pivot point. The farther you are away the less amount of weight that can be safely lifted.

    Adding weight to the front loader, dirt, rock, will add stability and help reduce the lever reaction and by being 180 from the load not picking from the side of the machine will help with stability.

    Driving out from under the picking point will help for sure as long as the machine can lift the load off the deck. The higher the lifting point will also decrease the mechanical lifting advantage.
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    We also take the excavator bucket off to lose weight. And by taking bucket off gives more lifting ability by being closer to the knuckle where the bucket was. And height advantage, up close to the machine where it has max ability to lift.
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