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Case Tractors Discussion Forum

570 case hydraulic leak

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Author  [Modern View]

09-11-2019 13:23:52

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I am loosing hydraulic fluid, it is leaking out the bottom of the bell housing at the inspection hole.
Any idea what seal is bad?
Will i have to split the tractor to repair?


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09-11-2019 18:16:03

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 Re: 570 case hydraulic leak in reply to Johnandrew, 09-11-2019 13:23:52  
You may want to drain some oil from the hydraulic reservoir before removing the cover.

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Joe (Wa)

09-11-2019 15:15:04

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 Re: 570 case hydraulic leak in reply to Johnandrew, 09-11-2019 13:23:52  
If you're sure the leak is hydraulic fluid then you will have to split and renew the shaft seals #55 & #63 on the hydraulic pump drive shaft. Pic is a 300 just for orientation, you do not have the spring or tach drive and a different style of throw out fork.

Remove the 4 bolts on the cover and the hydraulic pump drive as depicted below comes out as a unit. Also check that bearing #57 is good or just replace with new.


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Joe (Wa)

09-11-2019 15:23:52

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 Re: 570 case hydraulic leak in reply to Joe (Wa), 09-11-2019 15:15:04  
The cover has 3 bolts not four. There is nothing else holding the unit in there although it may take some banging/prying and bad words to break the cover gasket loose.


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