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george dugan New User
Joined: 20 Jun 2011 Posts: 3
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Posted: Mon Jun 20, 2011 10:01 am Post subject: CASE 580D STERRING PROBLEM |
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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 Tractor Guru
Joined: 12 Mar 2000 Posts: 87583 Location: Lake of the Ozarks area of MO
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Posted: Mon Jun 20, 2011 11:33 am Post subject: Re: CASE 580D STERRING PROBLEM |
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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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old Tractor Guru
Joined: 12 Mar 2000 Posts: 87583 Location: Lake of the Ozarks area of MO
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Posted: Mon Jun 20, 2011 11:37 am Post subject: Re: CASE 580D STERRING PROBLEM |
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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 Guest
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Posted: Tue Jun 21, 2011 12:43 pm Post subject: Re: CASE 580D STERRING PROBLEM |
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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 Tractor Guru
Joined: 28 Sep 1998 Posts: 5557
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Posted: Tue Jun 21, 2011 3:34 pm Post subject: Re: CASE 580D STERRING PROBLEM |
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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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