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Tracy Martin TN 
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10664
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 Topic: D10 D12 hyd controls leak?
Posted: 15 Aug 2010 at 7:27pm |
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What would cause the valve to leak out the back assembly when lift is raised? Are parts available to rebuild a valve assembly? Thanks Tracy Martin
Edited by Tracy Martin TN - 15 Aug 2010 at 7:30pm
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Joe/NC
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Joined: 11 Sep 2009
Location: Smithfield, NC
Points: 265
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Posted: 15 Aug 2010 at 8:48pm |
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Tracy, I know you are pretty good mechanic on the AC tractors, but have you checked to see if it is just loose? Sometimes the simple things get overlooked. Also, check your messages.
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Tracy Martin TN
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Joined: 11 Sep 2009
Location: Gallatin,TN
Points: 10664
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Posted: 15 Aug 2010 at 10:04pm |
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Joe, There are leaks that are loose. This one seems internal to leak out the little weep hole in end of plunger assembly.A couple of lines have seen better days. Thought someone may have already been down this road. Thanks Tracy Martin
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Larry Miller
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Joined: 21 Nov 2009
Location: NWIL
Points: 900
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Posted: 15 Aug 2010 at 10:08pm |
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Tracy - I think there is a small hole in the back of that assembly to avoid vacuum or pressure. O rings will leak and move oil out that hole. Short answer - O ring replacement. Be careful and clean - springs and small balls will shoot out if you just pull the assembly. Now I put a shop rag over it when pulling out of casting after learning that lesson.
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I used to be young and stupid, now I am not young anymore.
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Cary(KY)
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Joined: 11 Sep 2009
Location: Scottsvillle KY
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Posted: 16 Aug 2010 at 6:55am |
Mine had that same leak and replacing the o-rings internally fixed it.
Cary
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Dusty MI
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Joined: 13 Sep 2009
Location: Charlotte, Mi
Points: 5058
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Posted: 16 Aug 2010 at 8:12am |
Tracy thinks for opening the subject.
I have a D-10 series III with 3 point. The 3 point will hot lift. The remounts work.
Anyone worked on one of these?
Dusty
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917 H, '48 G, '65 D-10 series III "Allis Express"
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Tracy Martin TN
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Joined: 11 Sep 2009
Location: Gallatin,TN
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Posted: 16 Aug 2010 at 8:54am |
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Dusty, Just trying to work out some kinks. Thanks also. Tracy Martin
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Joe/NC
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Location: Smithfield, NC
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Posted: 16 Aug 2010 at 3:26pm |
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Tracy, I remember Jim telling me about the springs and balls flying everywhere too. The book shows them in the cut-away.
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