3 point boom plans

[L3650]

While seachin the web for something, I came across a sight with plans for a 3 point boom.

 

[PineRidge]

Does this site offer plans for any other implements? If so please share the URL with us.

 

[Slamfire]

If you examine this type of attachment, you'll discover it loads the 3 point hitch exactly opposite of the design. I hope if you make or buy a boom pole, you have a loaded bucket on the front end loader.

 

[Donman]

With this type of boom pole you don't need the top link arm, and it also lifts faster and higher while sacrificing lifting capacity.

 

[Jarrett]

Does this site offer plans for any other implements? If so please share the URL with us.

I think he got that from the LSU AgCenter website. They don't really have alot of plans, but they do have alot of good information.

 

[Marine1]

Yes, if you go to www.lsuagcenter.com and go to the search bar at the top left of screen you can get quite a few plans. Not for impliments but for other farm stuff and some houses too.
I don't think I would build the houses though. The plans are lacking and they look out of date.

 

[L3650]

yup, that's were I found it.


http://www.lsuagcenter.com/en/our_o...l_Ag_Engineering/Building_Plans/agricultural/

I grabbed the PDF and saved it, but could not remember where.

 

[RonMar]

If you examine this type of attachment, you'll discover it loads the 3 point hitch exactly opposite of the design. I hope if you make or buy a boom pole, you have a loaded bucket on the front end loader.

I don't understand your statement "loads the 3 point hitch exactly opposite of the design". The base end of the boom(left end on the .PDF) attaches to the tractor where the toplink normally would. The base of the "A" frame attaches to the 3PH lift arms. the "A" frame is the fulcrum and the boom is the lever applying downward force thru the "A" frame structure to the 3PH lift arms, just the same as an impliment hanging on them would. The boom end attached to the tractor would be in tension as it is with a 3PH impliment in the air. The toplink attachpoint on the tractor will have a vertical force applied preportional to the weight lifted by the boom which is not normal for that structure.

The plans shown are almost exactly like the boom assembly that comes with the Leinbach PHD's except on the Leinbach boom where it meets the top of the "A" frame, there are several adjustment holes so you can adjust for slight differences in toplink length on various tractors to get the "A" frame as near vertical as possible. I guess this would also allow you to change the ratio of 3PH arm movement to boom lift/tilt.

Every 3PH valve assembly I have ever seen(but I havn't been around much had a safety valve built into it to protect the cylinder, seals and 3PH lift structure from damage if you bounce the tractor with a heavy impliment hanging in the air on the arms. Unless the 3PH hydraulics are setup incorrectly, enough downforce on the 3PH arms to lift the front of the tractor off the ground should be more hydraulic pressure than the safety valve will allow and the 3PH/lift arms should lower on their own.

 

[CalG]

If you examine this type of attachment, you'll discover it loads the 3 point hitch exactly opposite of the design. I hope if you make or buy a boom pole, you have a loaded bucket on the front end loader.

This comment is nonsensical to me.

The lifting arms of the 3PH do the work. What's the difference?

 

[bcp]

It isn't just the lifting arms that do the work.

A conventional implement applies a mostly forward and backwards force to the tractor's top link attachment point.

This style of boom applies an upwards force to the top link attachment point equal to about three times the weight of the load lifted.

Bruce

 

[CalG]

That seems to be a design weakness that none of the tractors in my experience suffer from.

I suppose some of these new tractors with housing and fittings made of pot metal may show unfavorably.

 

[Baby Grand]

It isn't just the lifting arms that do the work.

A conventional implement applies a mostly forward and backwards force to the tractor's top link attachment point.

This style of boom applies an upwards force to the top link attachment point equal to about three times the weight of the load lifted.

Bruce

Agree with Bruce. Those top bracket bolts will load in shear rather than tension.
Load direction on the housing the bolts secure to will have a large vertical component, rather than all aftwards.

It looks more like a post hole digger type boom than a typical lifting boom pole.
As such, it will have a lot more (2.8 times) vertical range of motion and 1/2.8 the lifting capacity compared to a typical lifting boom pole.

The design is well suited to lifting lighter loads high off the ground.

 

[CalG]

I will take loads in shear over tension any day. (No threads were harmed in product testing;-)

A boom pole that lifts high is what I prefer. heavy lifts, above head level give me the willies.

 

[JohnWhayne]

 

[JohnWhayne]

EZ-HITCH & EZ-WORKHORSE PRODUCTS - EZ Webrings

 

[CalG]

the single most important "safety" feature that should be built into every boom pole is a detachable chain fitting.

For when forward motion is no longer the desired action.
Let the load go!

 

[CalG]

Take a quick look through Google images using "Ferguson Jib Crane" for the search term.

Many good tractor images and boom ideas.

Some bright folks have come and gone. I suppose some would say that Ferguson was unconventional. ;-)

 

[JohnWhayne]

HEY ALL .....Got mine and unit really built heavy duty......check it out at

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