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Farmall & IHC Tractors Discussion Forum
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I-4 Hitch

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Harold H

08-10-2007 08:35:37




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For some time I have been advertising on the classified section for a complete pintle hitch assembly with no luck. I can make do if I can get just the two main lower arms and the cast center junction piece. Anybody have any ideas where I might find these parts?

Harold H




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Wardner

08-12-2007 13:02:32




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 Re: I-4 Hitch in reply to Harold H, 08-10-2007 08:35:37  
Harold,

I went to a tractor show today and looked at a OS-4. The U-shaped brackets under the axle housings are smaller in a couple of regards. The vertical bolt holes into the axle housing are smaller and the center to center distance is one inch shorter. The cross bolt (hinge) is smaller as well. The inside dimension where the welded pipe sections go is the same.
I suggest that you use your brackets and bush my lower struts down to 5/8th or 3/4". I didn't measure that bolt size.
Because the bracket and the bracket end of the strut is downsized, I am assuming that the I-4 struts for the pintle is also a smaller section. Probably 5/8ths or 3/4" x 2". If you are looking for complete authenticity, you will have to fabricate new struts. Not a difficult job and well within the capability of any welding shop. It is something I could do as well. The length of the struts can be calculated using the Pythagorean Theorem.

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Harold H

08-12-2007 13:33:45




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 Re: I-4 Hitch in reply to Wardner, 08-12-2007 13:02:32  
My struts on the home made drawbar are the original I-4 pintle hitch struts #59977D. They are made from 1/2" x 2" stock. After Tim measures the lower arm cross section on his I-4 I will know how to go. I have sent you a e-mail.

Harold H



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Wardner

08-12-2007 12:23:50




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 Re: I-4 Hitch in reply to Harold H, 08-10-2007 08:35:37  
It's called a torque multiplier, not to be confused with a IH torque amplifier. Snappy used to sell the high ratio unit for around $1800. It is probably still in the Snap-On catalog but I bet the price is higher. I got mine at an auction for $100. Most people get the 4 to 1 multiplier. That tool would have been of no use to me on this recent job. Ya, I have several people who like to borrow my multiplier.

I have never taken my multiplier apart but I believe there is a double reduction planetary gearset inside. The input uses a standard 1/2 ratchet. The output is sized for 1" drive sockets. An adaptor for 3/4" drive comes with the tool. Goto eBay and search on "torque". You will see a bunch of different multipliers. My unit weighs about 40 lbs and can be difficult to use at times. I have four 1" or 7/8" upside-down vertical bolts to remove on this tractor. I am not looking forward to those.
My multiplier is probably rated for around 5000-6000 ft/lbs. I was on a job about 10 years ago where it wasn't enough. Fortunately, I had another customer who built high pressure heat exchangers and I was able to borrow their 400,000 ft/lb hydraulic wrench.
There was a recent thread on the YT tool forum about torque multipliers. It might have been four or five weeks ago,

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Butch WI

08-12-2007 11:36:45




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 Re: I-4 Hitch in reply to Harold H, 08-10-2007 08:35:37  
Wardner,

What is a 50 to 1 Torque amplifier? I have destroyed many a breaker bar by adding pipe to it for more leverage on those hard set bolts.

Butch



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Wardner

08-10-2007 09:45:39




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 Re: I-4 Hitch in reply to Harold H, 08-10-2007 08:35:37  
Does the center piece have 9004 D cast into it? Does it allow the spring-loaded pintle to shift/rotate slightly from side-to-side?

This set-up is on my ID-9 which is a parts tractor. I am sure it is stock IH material. The odd thing is that it doesn't show up in my parts book. The book shows a standard drawbar and bolt-on pintle. It's not much different than what is currently available at a truck parts outlet.

I won't be able to take a picture until the 15th. Let me know if you want a picture. Meanwhile, I'll check to see if I have anything in my computer.

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Harold H

08-10-2007 10:40:20




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 Re: I-4 Hitch in reply to Wardner, 08-10-2007 09:45:39  
Wardner,

The center casting is #9004D in the I-4 parts book. Left & right arms are same #59976DX. I don't know if I-9 arms would be same or not. I have not seen setup with pintle on regular drawbar. Could you send picture of that. I am trying to make my tractor as original as possible and if the lower arms are same I-4 & I-9 I would be interested in your casting and arms. I think the support arms are the same on the pintle hitch and regular drawbar but I don't have a parts book that shows regular drawbar to be positive.

Thanks,

Harold H


Wardner said: (quoted from post at 09:45:39 08/10/07) Does the center piece have 9004 D cast into it? Does it allow the spring-loaded pintle to shift/rotate slightly from side-to-side?
This set-up is on my ID-9 which is a parts tractor. I am sure it is stock IH material. The odd thing is that it doesn't show up in my parts book. The book shows a standard drawbar and bolt-on pintle. It's not much different than what is currently available at a truck parts outlet.

I won't be able to take a picture until the 15th. Let me know if you want a picture. Meanwhile, I'll check to see if I have anything in my computer.

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Wardner

08-10-2007 12:31:36




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 Re: I-4 Hitch in reply to Harold H, 08-10-2007 10:40:20  
Harold,

I couldn't find the 9004D in my book because it is a W-9 book as opposed to a I-9 book.

You will have to wait for the picture because my camera was stolen at a truck stop. Let that be a warning to all. Those scumbags are waiting to pounce on you when you go to pay your bill or get a Coke. Anyway, I bought a new camera on eBay. It will be here the middle of next week.

The arms are made of 1" x 2" flat bar. The aft end has two drilled holes that bolt to the pintle receiving casting. The other end, up by the axle, has a heavy pipe section welded to it. It could be easily fabricated. If you think that IH stamped that part, I can try to find the number. I'll bring along a magnifying glass, lights, and sandpaper.

The pipe section fits into the standard drawbar bracket that is used on 9's, 650,s and even my 660. Part # is 58622D. It probably has other applications. Perhaps even the I-4.

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Harold H

08-11-2007 04:31:44




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 Re: I-4 Hitch in reply to Wardner, 08-10-2007 12:31:36  
Wardner,

On your I-9 can you measure the width between the mounting brackets under the axles. I don't have access to my tractor right now, (its in a shop closed till Monday), but I think the brackets are about 23 inches center to center. I would think the brackets would be further apart on the I-9 and the arms made from heavier steel, but I hope they are both the same.

Harold H




Wardner said: (quoted from post at 12:31:36 08/10/07) Harold,

I couldn't find the 9004D in my book because it is a W-9 book as opposed to a I-9 book.

You will have to wait for the picture because my camera was stolen at a truck stop. Let that be a warning to all. Those scumbags are waiting to pounce on you when you go to pay your bill or get a Coke. Anyway, I bought a new camera on eBay. It will be here the middle of next week.

The arms are made of 1" x 2" flat bar. The aft end has two drilled holes that bolt to the pintle receiving casting. The other end, up by the axle, has a heavy pipe section welded to it. It could be easily fabricated. If you think that IH stamped that part, I can try to find the number. I'll bring along a magnifying glass, lights, and sandpaper.

The pipe section fits into the standard drawbar bracket that is used on 9's, 650,s and even my 660. Part # is 58622D. It probably has other applications. Perhaps even the I-4.

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Wardner

08-11-2007 06:34:10




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 Re: I-4 Hitch in reply to Harold H, 08-11-2007 04:31:44  
Center to center on the axle housing threaded bolt holes is 28".

Length of 1" x 2" flatbar is 24".

Because both tractors use the same 9004D casting, the I-9 lower struts (1"x 2" flatbar) could be shortened and redrilled. That assumes the forward ends with the welded on pipe sections are the same. I think the ID on the pipe is 1". OD is probably 2". They would come from the same stock as was used on a standard U-shaped drawbar.

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Harold H

08-11-2007 11:44:37




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 Re: I-4 Hitch in reply to Wardner, 08-11-2007 06:34:10  
Wardner,

Sounds like your hitch will fit by shorting and redrilling the lower arms. Send me a PM and we will discuss it further. Where are you located?

Harold H


Wardner said: (quoted from post at 06:34:10 08/11/07) Center to center on the axle housing threaded bolt holes is 28".

Length of 1" x 2" flatbar is 24".

Because both tractors use the same 9004D casting, the I-9 lower struts (1"x 2" flatbar) could be shortened and redrilled. That assumes the forward ends with the welded on pipe sections are the same. I think the ID on the pipe is 1". OD is probably 2". They would come from the same stock as was used on a standard U-shaped drawbar.

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Wardner

08-11-2007 14:00:43




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 Re: I-4 Hitch in reply to Harold H, 08-11-2007 11:44:37  
The PM function is under construction. You can go to the classic format and click on "send email" at the bottom of any of my posts.

Or you can email me at

wardner@peoplepc.com

I am in Tewksbury, MA 01876
978 851 6308

I am taking the hitch off now. I am doing it in conjunction with the removal of the Ottawa loader that is on the I-9. Nearly every bolt is so tight that I have to use a 50-to-1 torque multiplyer. It's taking awhile but it is better than using a torch in this weather. Had to go to the store and buy an oddball socket I didn't have.

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