Ag-Krane - Page 2

IHinIN · #11 09-24-2014, 07:59 PM

I found a cylinder that will work unless I find a good deal on a used cylinder.

http://www.northerntool.com/shop/too...2448_200442448

J-Mech · #12 09-24-2014, 08:15 PM

My math tells me that if you put the cylinder mount 1' from the top pivot point, you will be able to lift around 630#. Roughtly 5' from the center line of the rear axle, you will need somewhere around 350-400# on the front to counterbalance the weight!

I think the casters are going to be necessary. Plus, remember that the Brinly adapter can't handle more than about 100#. (Maybe a little more, but that is something that is mounted close to the hitch, let alone 4' away.) I really don't think mounting this to the sleeve hitch/Brinly adapter is a good idea. Your builds are always excellent Adam, and I'm not knocking the build or the idea, but I do think the way your mounting it isn't going to be able to handle the load. Just my

IHinIN · #13 09-24-2014, 08:46 PM

I do plan on adding the casters to the crane to avoid the tractor tipping back and dumping a load off of the forks. I thought about mounting the snow blade on the front when using the crane for counterbalance. The pump on my 100 has the relief set at roughly 700 psi so the cylinder will be capable of putting out around 2,000 pounds of force. I am going to try shortening the lifting arm to keep the load closer to the tractor and maybe shorten the vertical post. My goal is a minimum lift height of 48".

IHinIN · #14 09-24-2014, 08:58 PM

I've also thought about mounting the crane to a frame with wheels and make it a pull-type attachment but that would make backing it up a little tricky.
If it is mounted to the lower 3-point bracket with casters about 12" behind the vertical post then it then it will not put much load on the tractor and be easier to maneuver when backing up. The wheels would act as a fulcrum point and actually cause the load to lift up on the back of the tractor. The casters will also make it easier to move around in the garage when it's off the tractor.

DoubleO7 · #15 09-25-2014, 09:30 AM

checkout these guys for cylinders, etc.
2"x16" for $55
http://www.surpluscenter.com/Hydraul...DER-9-3271.axd

IHinIN · #16 09-25-2014, 07:21 PM

Got a little more done on my mock-up. I shortened the lifting beam by 6" and lowered the vertical post a few inches. I also moved some of the pivot points to get a little more travel. With a 16" stroke cylinder attached 10" from the pivot point, it will lift 55" high. I added some rough forks too.

I am going to make the forks like these. They are adjustable width and quick attach.

Steve149 · #17 09-26-2014, 09:59 AM

Looking good Adam...I am sure it will turn out as good as all your other projects!!!

123Pokey321 · #18 10-08-2014, 12:50 PM

I have to agree with J-Mech on this one. Using just the sleeve hitch pin for a mount, you will bend/twist the sleeve right off the bracket. You need to tie the vertical upright (the one which has the c-clamp on it) forward to the upper mount of the sleeve hitch. That will take out the bending moment and ensure that the sleeve hitch is only subjected to vertical loads, rather than bending/twisting.

alsparl · #19 10-08-2014, 03:21 PM

Adam, Is it possible to make a subframe that slides under the entire tractor? When not in use or want it off the tractor, detach and drive off of it.

I am only asking as I had a situation back in my dealer days where we had a New Holland TC24 and the gentleman wanted a backhoe. We got one from Woods and the subframe went all the way to the front of the tractor and hooked as far forward as underneath the engine. No loader either if memory serves me correctly. Of course, it (subframe) was attached to the tractor in a couple different spots. But it also partnered the weight of the tractor to the weight of the backhoe and there was no additional weight needed up front. Just a thought. And with your intelligence and craftsmanship, that may be a Saturday afternoon done deal.

mjsoldcub · #20 10-09-2014, 02:42 PM

this is a good project...i would have to make it able to lift a small block chevy though!! how long have you had that floor jack?? i had to get myself one a yr ago, normally not a fan but for the price just couldnt pass it up..must say ive been more than happy with it too...cool project adam, be nice to see it evolve...