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Harry Ferguson Tractors Discussion Forum
:

Override clutch on Ferguson to20 won't override

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Charlie tuna

12-01-2019 20:14:09




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I have used a Ferguson to20 for 30 years to mow pasture. I had 1 1/8 6 spline pto shaft on it with override clutch 1 1/8female- 1 3/8male conversion. I replaced the shaft and bearing this past summer in a kit, all was well. I still needed override clutch so I purchased one 1 3/8 female- 1 3/8 male and noticed the spring pin hole was 1/16-1/8" off center from the coupler. When inserted the spring pin put tension on the butt end of the coupler against the pto shaft hardware. The problem I encountered was that the coupler wouldn't over-ride when the clutch on the tractor was pushed down and the brakes applied while the rotary mower was spinning. I took the spring pin out and when the tension was off the override coupler I could manually turn the coupler and make it override. Any ideas or adjustments that would help this work?

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Charles in Aus.

12-02-2019 00:10:27




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 Re: Override clutch on Ferguson to20 won't override in reply to Charlie tuna, 12-01-2019 20:14:09  
Just to get you going again fast you could just reuse the old ORC. There are small adapters that will convert the small end of the clutch to the larger size . I do this on my two tractors , a 1952 TED20 with a small pto and a 1957 FE35 with the larger shaft . I can use the same ORC on both without a problem .
The adapters cost around 10/15 dollars down here .



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Bruce(OR)

12-01-2019 20:22:35




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 Re: Override clutch on Ferguson to20 won't override in reply to Charlie tuna, 12-01-2019 20:14:09  
Get another ORC. Sometimes the land of almost is not too good. Also possible the bearing/seal not fully installed on shaft.



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Charlie tuna

12-02-2019 06:00:16




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 Re: Override clutch on Ferguson to20 won't override in reply to Bruce(OR), 12-01-2019 20:22:35  
Thanks Bruce
I have had 2 other ORCouplers, same style as the Sparex on my tractor now. I did not install them with roll pin because of the 1/16th- 1/8" offset discrepancy in alignment with hole in pto shaft. Sparex is the shaft mfg too, and I installed it new in May 2019. I am leaning towards problem with pto shaft bearing, sleeve or a circlip missing. Charlie



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