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Farmall & IHC Tractors Discussion Forum
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Need Help on 3pt hitch

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Triker

07-24-2005 19:48:55




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Welcome everyone back from the Roundup. It has been quiet the last few days. I am a newby and I am sure this question has come up before so excuse me if I ask again. I just put a 3pt hitch on my 39 H. It came off a 450 and has two cylinders but one hose with a tee going to both cylinders. First, which valve do I use? Left or right side of H and can I have down pressure with this? Or is down pressure not needed. Thanks.

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Dave in CT

07-25-2005 00:39:49




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 Re: Need Help on 3pt hitch in reply to Triker, 07-24-2005 19:48:55  
I just asked the same question a few days ago. Do a search in the archives for "How to plumb a 3 pt hitch on an H" or "Dave in CT" and you'll see some answers.



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Triker

07-25-2005 04:03:21




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 Re: Need Help on 3pt hitch in reply to Dave in CT, 07-25-2005 00:39:49  
Thanks Dave. I dont see anything stating which side to use. Left or right and nothing on down pressure. If its there, I am missing it.



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Dave in CT

07-25-2005 04:31:03




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 Re: Need Help on 3pt hitch in reply to Triker, 07-25-2005 04:03:21  
Yeah, I'm in the same boat. The most common setups just put a breather on the second port of each cylinder and let the weight of the implement bring the hitch down. I've read accounts where folks eventually want the down pressure so I'm looking for a way to get it plumbed that way from the start. I'll post my solution here. As to which port, you can use either front port, or both, for lifting the hitch. The third, rear port on the clutch-pedal side is for a delayed lift of the rear of the implement. It kicks in after the forward ports have reached top pressure. Unless you are using an implement that would require the back end to be lifted after the front, you can just leave that rear port capped. I think the most common way folks plumb their hitches is to run one line from either forward port back to a T located near the back end of the trans cover plate. From that T, two hoses go to your two cylinders. They do it this way to leave the other port available for other hydraulic applications, such as a front loader or, in my case, a front snow plow blade. I've also heard of setups that just run a hose from each of the two forward ports to each of the hitch cylinders. Whatever you do, I'd recommend getting those hoses well mounted with a good abrasion-resistant bracket and cover the area that runs by your feet with some sort of metal shield. You don't want to wind up with an amputated foot or foreleg because of a pinhole leak that develops years down the road. There's a hose shield pictured this way in the H Operator's manual so they probably can be gotten from the boneyards.

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Bruce Wa.

07-25-2005 20:50:45




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 Re: Need Help on 3pt hitch in reply to Dave in CT, 07-25-2005 04:31:03  
you can use the rear port. The delayed lift was by a special fitting for the rear cylinder. The rear port does have delayed drop feature built into the valve which requires the handle to be pushed all the way down. There is a detent after the position for dropping by the front ports.



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Triker

07-25-2005 08:41:41




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 Re: Need Help on 3pt hitch in reply to Dave in CT, 07-25-2005 04:31:03  
What kind of front snow blade do you have? I would like to get a blade that pushes instead of a drag one. Is it an IH or another brand?



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Dave in CT

07-25-2005 09:38:44




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 Re: Need Help on 3pt hitch in reply to Triker, 07-25-2005 08:41:41  
Not IH. The snow plow frame has a tag that says "Glen M. Rogers, Snow Plows and Loaders, Buffalo, N.Y." I figure they know what they're doing with snow in Buffalo. The snow plow frame bolts along the frame rails of the H - going back to the start of the bell housing. The front rectangle of steel they support is what holds the blade mounts and the single ram for raising and lowering the blade. Very simple and no dynamic angle control but still beats shoveling. If you get one like this, be careful of hitting immovables (e.g.: rocks). You can crack the bell housing if you're not careful.

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Triker

07-25-2005 08:37:19




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 Re: Need Help on 3pt hitch in reply to Dave in CT, 07-25-2005 04:31:03  
Thanks Dave for the response. I guess we will get through this. I will just try one valve at a time and see what happens. I wont be able to work on mine for a week or so but I will keep you posted on my findings also. Thanks again.



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Dave in CT

07-25-2005 09:46:29




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 Re: Need Help on 3pt hitch in reply to Triker, 07-25-2005 08:37:19  
I think you mean 'port'. Valves are most commonly those things with handles that you use to control hydraulic operations. It doesn't matter which side (they actually are 2 ends of the same T'd chamber) just so long as, if you're using the clutch-pedal side, you connect to the front port. Good luck and let us know how it works out.



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P Backus

07-25-2005 09:30:45




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 Re: Need Help on 3pt hitch in reply to Triker, 07-25-2005 08:37:19  
In order to get down pressure, you need to have two way hydraulics. You can do that on your H by plumbing one of the outlet ports to a two way hyd spool that you can buy at your local farm store or ordered from a catalog, sometimes called a log splitter valve ( Northern Hydraulics). From that spool you run two lines to your cylinder, one to the rod end and one to the base end. You also have to run a return line from the spool to the hydraulic resevoir. Most people just plumb that into the top where you would fill the hyd system. As long as you are at it, you could put 2, 3 or more spools on so you have more than one hydraulic remote valve. You also have to lock the original hydraulic control rod in the "on" position.
This isn"t as bad as it sounds and is a nice upgrade if you have need of hydraulics. However, if you"re only using it for the three point hitch, I wouldn"t bother. Just run the line from the cylinders to one of the hydraulic ports on the pump. On the other hand, the other thing that"s nice about having two way hyd is that the hitch won"t float when you don"t want it to, like pulling a wagon downhill- the wagon will push the hitch all the way to the top. That could be scary!
Paul

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Van in AR

07-25-2005 12:34:53




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 Re: Need Help on 3pt hitch in reply to P Backus, 07-25-2005 09:30:45  
You should NEVER pull a loaded wagon with a 3 point hitch drawbar, asking for trouble.
Van



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P Backus

07-25-2005 13:47:36




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 Re: Need Help on 3pt hitch in reply to Van in AR, 07-25-2005 12:34:53  
Yeah I know. But when you have a tractor with no other drawbar, you have to put stabilizer bars up to your top link or find another way to lock the hitch in position so it doesn"t move.
Paul



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