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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Power Steering-770

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Gary from Iowa

10-31-2007 10:44:55




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I have a 1964 770 gas. The power steering pump went bad and had to be replaced. This pump stands alone, not part of generator. Purchased a used pump from a 1650. Perfect appearing match. Installed the pump and everything seemed to work until I drove it for some distance. If I travel about one-half mile the steering wheel will make one complete revolution. I have to keep turning the steering wheel, very slowly, to keep the tractor on course. Need Help!

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Larry NE IL

10-31-2007 21:03:32




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 Re: Power Steering-770 in reply to Gary from Iowa, 10-31-2007 10:44:55  
If you got a replacement pump from a 1650, then you've got a saganaw pump, not a Gemmer unit.



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Mike in MI

10-31-2007 17:39:31




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 Re: Power Steering-770 in reply to Gary from Iowa, 10-31-2007 10:44:55  
Gary,
Here"s a photo of gemmer power steering unit on my 880. The Blk.arrow shows the bleeder screw on top the left hand-side facing front of tractor.
Mike



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Gary from Iowa

10-31-2007 17:24:35




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 Re: Power Steering-770 in reply to Gary from Iowa, 10-31-2007 10:44:55  
Thanks for the info. I did get an e-mail and someone is going to call with information also. Anyway, thanks for replying.



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rrlund

10-31-2007 16:02:44




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 Re: Power Steering-770 in reply to Gary from Iowa, 10-31-2007 10:44:55  
There's a bleeder down on the left hand side of the unit under the radiator. I think it's left anyway. You can get to it without taking the radiator off. Loosten that with it running and bleed the air out.



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rrlund

10-31-2007 16:49:57




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 Re: Power Steering-770 in reply to rrlund, 10-31-2007 16:02:44  
Wait..wait ..wait,I screwed up a little. Turn the steering wheel to the right as far as it will go before you bleed it. The bleed screw is on top,slightly to the right of center. Just be careful of the pulley reaching in there.



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