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Harry Ferguson Tractors Discussion Forum
:

Overruning Clutch for a TO20

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Brian G. NY

03-20-2020 06:39:49




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A friend of mine just picked up a nice little TO20 which I believe is a 1951.

He wants to put a brush hog on it and I told him he should put an overrunning clutch on it first.

I looked at the tractor for the first time yesterday and I see it has a 1-1/8" PTO shaft. It did come with an adapter to change it to 1-3/8".

It seems to me that putting the overrunning clutch out there on the adapter might be a little "mickey mouse" and be prone to problems. Is there an overrunning clutch that is 1-1/8" input and 1-3/8" output? I looked around a little and couldn't find such an animal.

I did discover that a complete 1-3/8" shaft is available here on this site at not too much money. That shaft appears to also fit the TO30 as well as 2N,9N and 8N Fords which leads me to believe a used shaft might be an option as well. The kid is on a limited budget and was not raised a farm boy so he needs a little help and direction.

Sorry guys, I'm an A-C guy but I did spend many hours on a 2N, an 8N and a TO20 Fergy when I was a teenager back in the 50s. Of the 3, I liked the Fergy the best.

What do you recommend he should do?

Thanks for your help.

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504

03-20-2020 22:13:27




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
Even if you put on the bigger shaft, you will still need an ORC. They make ORCs that will fit the tractor and adapt it to the 1 3/8,cheaper, and there are some implements that did use the 1 1/8 size(we had a mixer on a T-20)



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Bruce(OR)

03-20-2020 19:17:24




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
Drop the front end in the drainage ditch. About a two foot drop. I did mine like that. I believe I lost three drops of oil. Such a waste. PTO ORC come 1-1/8 to 1-3/8 or the 1-3/8 to 1-3/8.
The old 1-1/8 PTO might be handy if he has an old piece of equipment that needs it. If not, then changing it to a newer modern shaft might be the way to go especially with an ORC.



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Jim L WA

03-20-2020 10:38:00




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
RM-MN, that was funny! I received a tip a few years ago about draining the gear/sump oil. Put your drain pan under the PTO. Loosen the four bolts and start to slide the PTO shaft out. The oil will run out of there, and when your drain pan needs emptying just slide the shaft back in. Then when no more oil will run out of the PTO opening, go ahead a remove the other drain plugs. One at a time of course.

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Brian G. NY

03-20-2020 09:14:48




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
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_____________________________________________________

Thank you Duner.....I guess I didn't look hard enuf! LOL

This will give him another option.

I would probably replace the shaft if it were mine.



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Duner Wi

03-20-2020 07:48:42




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
Isn't this what you need?? $46.00 from this site + shipping I suppose.

https://www.yesterdaystractors.com/C670F_PTO-Overide-Clutch_9653.htm



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RM-MN

03-20-2020 07:11:19




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 Re: Overruning Clutch for a TO20 in reply to Brian G. NY, 03-20-2020 06:39:49  
I'd recommend replacing the shaft. Drain the oil from the rear end first. I was told that I could just park the tractor on a steep hill and the oil wouldn't leak out. I didn't have a cliff and that seemed to be the required slope.



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