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Tractor Talk Discussion Forum

Retrofitting tractors with a 3-pt hitch

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Christos

10-12-2005 09:25:56




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Hi All, I was at a junkyard recently to pick up a replacement block for my MF 135 and saw a JD A (Post '47 model) and I remembered how some people like to retrofit three points on the business ends of their JDs, IHs, etc. I guess my question for you all is this: If the principles that Harry Ferguson used to design this type of hitch linkage required the installation of a top link, which as everybody knows is a sprung plunger that actuates the pump to cause the 'floating' effect, wouldn't the bracket that is bolted onto the powertrol case break that holds the top link? I would think because of the pressure and stress that it would be under lets say while plowing would be enough to do some serious damage.

I understand how it works on a tractor that was built for it (like my MF 135), but I am slightly confused as to how it would work on lets say on that JD 'A' which has the rockshaft, power-trol, etc.

The reason why I ask is because after my Massey is fixed, I thought about saving the 900 bucks and buying it to fix up (it had a bad electrical system).

Thanks everyone and on a side note, I hope your wife gets better Allan.

Christos

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dhermesc

10-12-2005 09:41:44




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 Re: Retrofitting tractors with a 3-pt hitch in reply to Christos , 10-12-2005 09:25:56  
Good point, except the three point isn't used for plowing so much anymore. The chance that one of these "converted" tractors is going to spend hours on end dragging a plow are very low, especially without draft control. The stress exerted by a three point mounted brush hog, post hole digger and other eqipment are much less.



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RayP(MI)

10-12-2005 17:04:52




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 Re: Retrofitting tractors with a 3-pt hitch in reply to dhermesc, 10-12-2005 09:41:44  
The JD conversions I have seen had a rather complicated bracket attached to the rear of the tractor, for the top link. Not attached directly to the Powr-Trol. The 3pt top link on my farmall 200 is bolted directly to the rear housing of the tractor in place of the belt pulley assy. I use my 200 for plowing, and found it was a real nuisance on uneven ground. Finally resorted to putting gage wheels on plow, to control the depth, and letting the 3point float. Works fairly well.

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Mike (WA)

10-12-2005 12:39:27




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 Re: Retrofitting tractors with a 3-pt hitch in reply to dhermesc, 10-12-2005 09:41:44  
I would go a step beyond what dhermesc said, and say that the aftermarket 3 point setups simply can't be used effectively for plowing or anything requiring draft control. Most brush hogs have a top link connection that allows the machine to "float", and things like post hole diggers and the like aren't moving when in use, so the toplink doesn't have to adjust to uneven ground.



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