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O Ring Question


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#1 NCMau OFFLINE  

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Posted May 01, 2013 - 01:16 PM

I have a JD 425 that has a small hydraulic leak at the lines connecting to the steering valve.  I need to replace the O rings. As shown on the attached pic, the removed O rings seem to flat. 

My question is, are the original rings round and became flat over the years or they are flat to begin with. I have replacement standard rings in my shop, but I just don't want to go to the trouble of replacing them twice if they are are not the right ones. 

O-rings.gif


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#2 DougT OFFLINE  

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Posted May 01, 2013 - 01:25 PM

Welcome to the forum. My guess would be that they were round and have flattened out. That's purely a guess. Make sure the rings you use are rated for oil.



#3 Texas Deere and Horse OFFLINE  

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Posted May 01, 2013 - 01:37 PM

First off, WELCOME to GTtalk, glad you joined us here.

 

Those O-rings were round when they were new and now they are not. That's why they are leaking and or they are cracked. You can use what you have as long as you use the right DIA. O-ring. Good Luck !!



#4 NCMau OFFLINE  

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Posted May 01, 2013 - 04:05 PM

Thanks guys. Just wanted to make sure. BTW, this looks like a great site.



#5 KennyP ONLINE  

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Posted May 02, 2013 - 08:06 AM

Welcome to the forum! Glad you got an answer for your issue. Hope to see more of your tractor later on.



#6 olcowhand OFFLINE  

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Posted May 02, 2013 - 08:48 AM

Yep, started life as round.  Welcome to GTT



#7 ducky OFFLINE  

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Posted May 02, 2013 - 09:01 AM

Be sure to use an SAE o-ring. They are a special size not the same as a standard o ring.

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