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Case Tractors Discussion Forum

511 b power steering

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Author  [Modern View]

10-09-2013 13:21:57

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Need help on power steering. Installed new hose from pump to power generator , bleed lines and steering goes nuts .steering wheel back and forth by its self very fast. Jacked up front and tried to work out air and still jerks steering out of hand. Is there anything to adjust on power generator?
Case book no help ,says not servicable. Any body want a 511b cheap? Suggestion greatly appreciated. Dan

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Joe (Wa)

10-09-2013 21:30:23

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 Re: 511 b power steering in reply to Danjwv, 10-09-2013 13:21:57  
third party image

third party image

311B routing is per pics. Pump supply is top line, return lower line.

On the torque generator inboard is supply from the pump, outboard is return to the pump.

511B should be the same.

The 300 service manual shows it routed properly in one pic and incorrectly in another. 511b manual may have the same error.



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Joe Young

10-09-2013 18:41:25

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 Re: 511 b power steering in reply to Danjwv, 10-09-2013 13:21:57  
Are you sure you have the lines hooked up properly.... Not switched?

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Case Nutty 1660

10-09-2013 18:46:43

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 Re: 511 b power steering in reply to Joe Young, 10-09-2013 18:41:25  
that was my first thought also, can not think of what else would have that affect

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10-09-2013 19:35:47

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 Re: 511 b power steering in reply to Case Nutty 1660, 10-09-2013 18:46:43  
Forgot to add that one fitting end was british end and one was jic. What started all this was i over tightned a metal line and broke fitting so i took and had a hyd hose put on in place. Fitting ends will not interchange so pretty sure on correctly
Thanks for responding.


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Joe Young

10-10-2013 03:48:13

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 Re: 511 b power steering in reply to Danjwv, 10-09-2013 19:35:47  

When installing the same unit on a 351, I experienced the same behavior until I swapped the lines. You might swap the fittings and see if it's possible. Be careful not to crack the aluminum manifold on the torque motor when changing the fittings. Most of the torque motor parts are readily available, but that one part is scarce/hard to find. - Joe

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Joe (Wa)

10-10-2013 06:58:42

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 Re: 511 b power steering in reply to Joe Young, 10-10-2013 03:48:13  
I think the original was JIC to female MPT with 1/4" MPT nipple on the torque generator. Imperial tube to male MPT elbow on the pump.

Of course they can get changed over the years.


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