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318 Steering Valve rebuild


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#1 Conrad OFFLINE  

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Posted January 29, 2016 - 11:36 AM

Rebuilding a 318 steering valve.  The seal kit came with an o-ring about the size of the shaft.  I didn't remove this ring when I disassembled the valve and I can't find it in the exploded diagram or the shop manual.  Anyone know what this is for?


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#2 jd.rasentrac ONLINE  

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Posted January 29, 2016 - 12:31 PM

Hello Conrad and welcome to GTT. I think, you're speaking about the John Deere 318 without power steering. Here are two pics, that may help you. Found at JDPC

MP6928_________UN01JAN94.gif


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#3 Conrad OFFLINE  

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Posted January 29, 2016 - 04:14 PM

Thanks for the reply, that is indeed the diagram I am looking at.  The seal kit. came with an o-ring that I can't find in this diagram or any other.  I can't even find it on the diagram included with the seal kit itself.  Since this thing is so hard to get out I would rather not reassemble the whole thing and find I missed something.  I'm thinking the extra piece might be 33a or 33b.  Here's a link to the assembly on Parker Hannifin's site, they made this for JD.

 

http://www.parker.co...HGF service.pdf


Edited by Conrad, January 29, 2016 - 04:37 PM.

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#4 jd.rasentrac ONLINE  

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Posted January 30, 2016 - 06:04 AM

I agree with you, Conrad. Maybe the kit fits different models and so a part can remain. It's better to have one piece more than one less...






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