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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
:

1550 Hydraulic Cover o-ring/seal

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OC4-3D

11-26-2019 16:44:29




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Re-assembling the hydraulic cover on my 1550 restoration project, got a mystery.

There is a passage from the main housing that doesn't go anywhere in the cover, but it needs to be sealed.

There's a counterbore for an o-ring, and the parts book shows two things (items 75 and 76 in the photo). I bought both items from Agco. Either one of these is too thin to seal given the depth of the counterbore. And I couldn't fit both in there together.

Hoping you guys have seen this before?

Chuck







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Mike(NEOhio)

11-28-2019 10:06:30




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
My parts manual is from early 1965 and doesn't show those parts.



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rrlund

11-28-2019 07:29:51




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
The yellow one's a quad ring isn't it? I think that's what's supposed to be in there. It's been three or four years since I've had one of those apart. I've questioned some of the thin rings I've got from AGCO lately. They've worked,but didn't look as thick as the originals.



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OC4-3D

11-27-2019 16:44:31




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
Quoting Removed, click Modern View to see

Mike, thanks, that 2nd pic is the main case.



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J. Schwiebert

11-27-2019 04:07:54




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
If you had the detent system this port feeds the oil to kick the valves back to neutral Questions, send me an e-mail. J.



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Mike(NEOhio)

11-26-2019 20:23:46




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
I completely went through mine a few years ago but I don't remember those. I'll look through my parts book and post back if I can help. Is that second picture the cover or the main case?



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OC4-3D

11-26-2019 17:20:17




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
John I have hydra-lectric valves.



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J. Schwiebert

11-26-2019 18:03:29




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 17:20:17  
Send me an e-mail. Include phone number + snail mail address. J.



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J. Schwiebert

11-26-2019 17:16:33




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 Re: 1550 Hydraulic Cover o-ring/seal in reply to OC4-3D, 11-26-2019 16:44:29  
Do you have depth stop valves or hydra-lectric valves?



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