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CASE 580D STERRING PROBLEM


 
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george dugan
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PostPosted: Mon Jun 20, 2011 10:01 am    Post subject: CASE 580D STERRING PROBLEM Reply to specific post Reply with quote

Steering quit working so we put a new hand pump on the drive shaft on it.Then we changed steering cylinders on it.New hydraulic filter.Now I am be told it is the relief valve or a unloader valve.The front and rear hydraulics work fine.Also we took out about 12 gallon of oil and it will only take 5 and the tank is full to the top.We worked the bucket and rams everything works good but no steering and it needs to bleed the air out.
 
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old
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PostPosted: Mon Jun 20, 2011 11:33 am    Post subject: Re: CASE 580D STERRING PROBLEM Reply to specific post Reply with quote

Can not say for sure but I do know on the 560B the steering is run off its own belt driven pump but ya on the D they could have changed it. Yep never have liked any thing with hyd steering on it because if something goes wrong you can have a major steering problem
 
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PostPosted: Mon Jun 20, 2011 11:37 am    Post subject: Re: CASE 580D STERRING PROBLEM Reply to specific post Reply with quote

Can not say for sure but I do know on the 560B the steering is run off its own belt driven pump but ya on the D they could have changed it. Yep never have liked any thing with hyd steering on it because if something goes wrong you can have a major steering problem
 
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David Lohf
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PostPosted: Tue Jun 21, 2011 12:43 pm    Post subject: Re: CASE 580D STERRING PROBLEM Reply to specific post Reply with quote

On A 580C the pump and reservoir are together driven by belt off the right front of motor.You might have an oil leak or no belt. By the way it takes A type. David
 
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mEl
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PostPosted: Tue Jun 21, 2011 3:34 pm    Post subject: Re: CASE 580D STERRING PROBLEM Reply to specific post Reply with quote

george dugan wrote:
(quoted from post at 11:01:37 06/20/11) Steering quit working so we put a new hand pump on the drive shaft on it.Then we changed steering cylinders on it.New hydraulic filter.Now I am be told it is the relief valve or a unloader valve.The front and rear hydraulics work fine.Also we took out about 12 gallon of oil and it will only take 5 and the tank is full to the top.We worked the bucket and rams everything works good but no steering and it needs to bleed the air out.


The D series hoe and loader uses the main hyd system pump for steering and has a relief valve in line up near the floorboard to control system pressure. it is not supplied like earlier models with a gear pump driven from the Cam gear. It is a different animal and maybe you should try to get a service manual for a D, one from and E should work also, Just seems like yolu are throwing parts at it without a diagnosis and that gets costly. mEl
 


Last edited by mEl on Tue Jun 21, 2011 3:36 pm; edited 1 time in total
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