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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Leaking Power Steering Unit

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ollie770

06-15-2007 08:02:07




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I'm restoring a 1960 770 with factory Oliver power steering. It is functional and seems to work ok but it leaks somewhere at the unit and runs down the pedestal and gets fluid on the tire too. Agco has pretty much no parts availabe. I do have a shop manual - are these tough to replace the seals in? Does anybody or an shops repair these and what does that cost? Any help is greatly appreciated.

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Larry NE IL

06-17-2007 12:44:17




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 Re: Leaking Power Steering Unit in reply to ollie770, 06-15-2007 08:02:07  
I have my Gemmer unit out of my 770 at Maibach Tractor in Ohio. (800) 808-9934
They have parts.



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putz54143

06-15-2007 19:58:06




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 Re: Leaking Power Steering Unit in reply to ollie770, 06-15-2007 08:02:07  
you need to contact phil heisey email [email protected] , fax215 256 1203 very good service and very very good instructions and diagrams. that is where i got mine from you will not be sorry with his stuf you can fix it your self



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Mike in MI

06-15-2007 18:42:31




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 Re: Leaking Power Steering Unit in reply to ollie770, 06-15-2007 08:02:07  
Ollie77,
It�s been a while since I worked on one. I�m assuming yours has the Gemmer power steering unit? The one on my 880 I had to work on it due to it was leaking also.
I never had one apart before and I thought I give it try anyways. You will need to remove the radiator to work on this. I didn�t have a manual at the time but I commenced to do it anyways. If you have a manual look up Gemmer steering gear unit if it has the break down of all the parts listed?
I had no idea they had so many parts in this unit. I played it buy ear and made sure I keep my parts in sequence. It�s been 17 yrs ago since I do mine and I see it�s starting to leak again at the Sector shaft assembly. I can�t say it was very easy to work on as I had torn mine completely apart. If yours is only leaking at the sector shaft that not to bad to replace seals. You mentioned that Agco pretty much had no parts available for this? I was thinking the seals should be a stock part? But maybe it�s not no more? I do know of a couple of places that may stock parts yet but I need to check myself on this also.

Anyways I would look at a parts break down before tearing into it you might have secound thoughts of doing it buy yourself. �Good luck� and I will check on these parts if they�re still available yet. Mike

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newt924

06-16-2007 18:57:18




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 Re: Leaking Power Steering Unit in reply to Mike in MI, 06-15-2007 18:42:31  
This may help. Add a bottle of Seallube to the unit to expand the seals. Lasts for years.
Info at seallube.com



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Mike in MI

06-16-2007 19:46:44




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 Re: Leaking Power Steering Unit in reply to newt924, 06-16-2007 18:57:18  
newt924,
Thanks for the information on the Seallube! Sure would be worth trying.
I have check on seals today thru Agco and ollie770 is right these are NLA. Thanks again. Mike



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