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Re: Won't turn left (2nd question for today)

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pete 23

06-22-2014 10:54:03

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Looks like those tractors use the same steering valve as a IH Farmall 560 or 460. The splined steering shaft on them has to move in and out depending on direction of turn. This then actuates the valve. So, if anything prevents this from happening no power steer or only partial if not moving full width. If that is ok, problem is in the valve. Usually loose nut, or bent washers on spring end. But, I bench test with air to see if I get equal flow for both directions when manually moving spool. Have added a washer in just the right spot to equalize the flow. Unless, of course , you have leak internal cylinder.

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06-22-2014 11:52:10

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 Re: Won't turn left (2nd question for today) in reply to pete 23, 06-22-2014 10:54:03  
Sounds like I need an o-ring kit and some washers. Thanks, Marty

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06-22-2014 11:43:32

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 Re: Won't turn left (2nd question for today) in reply to pete 23, 06-22-2014 10:54:03  
Does anyone know if that uses the same pump set up as a 900 gas? If so there's a plunger in the pump that sticks. Not sure what it does just know you can push it to center from the outside and the tractor will steer correctly till it sticks again.

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06-22-2014 11:50:38

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 Re: Won't turn left (2nd question for today) in reply to jr1983, 06-22-2014 11:43:32  
The 670 (not the 670 Super) uses oil from the hydraulic system (so no separate pump) Thanks

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