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Farmall & IHC Tractors Discussion Forum
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Super C Bull pinion seal

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JonT

01-02-2006 17:10:10




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I need the IH number for the bull pinion seal on a Super C. This is the seal that goes behind the brake assembly. I would appreciate it if someone with a parts manual could look this up for me. Thanks




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Haas

01-03-2006 09:55:25




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 Re: Super C Bull pinion seal in reply to JonT, 01-02-2006 17:10:10  
I think you need both the shaft seal and the "O" ring seal. I believe the O ring seal serves as a gasket to keep oil from leaking around the brake plate that is bolted to the transmission housing. The shaft seal looks to be mounted in this plate. I've not had the seals out of one with disk brakes, but have done the old band brakes. On the band brakes you need a seal washer and the oil seal. The seal washer goes under the retainer washer that holds the drum on the spline. On these the shaft seal runs on the brake drum and the washer keeps oil from leaking through the splines and out around the end of the shaft. I think that O ring serves a similar function on the disk brakes.

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leon

01-02-2006 17:44:01




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 Re: Super C Bull pinion seal in reply to JonT, 01-02-2006 17:10:10  
If I understand your question correctly, there's a seal ring, 285 723 R1 and either a 75 260H or 359 790 R91 seal. Of course, these numbers are out of an old parts book and probably substitute to some other number now. LOL



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JonT

01-02-2006 19:16:09




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 Re: Super C Bull pinion seal in reply to leon, 01-02-2006 17:44:01  
This is my first experience with disk brakes. I"ve replaced several seals in the earlier tractors with band brakes and they only require a single seal. I"m confused about the seal ring you mentioned. I can cross the seal number in my CR book, but I can"t cross the number for the seal ring. I wonder if it is necessary with a modern type seal.



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leon

01-03-2006 05:36:21




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 Re: Super C Bull pinion seal in reply to JonT, 01-02-2006 19:16:09  
Yes, the parts book makes it look as if the 285 723 R1 is needed along with the seal. Actually the 285 723 R1 looks like a large diameter "O" ring. Take it apart and see. I didn't have to replace the seals in my SC when I did the brakes last fall. That was about the only seals that didn't need replacing!



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