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Farmall & IHC Tractors Discussion Forum
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Hydraulic coupler block on 656

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Hayfarmer

06-18-2005 08:54:19




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On this tractor and probably other IH of similar design, the lines for the remote hydraulic couplers go into a square block on the back. Not sure of the purpose of the block but it is where the lines are secured to the rear of the transmission case. Are the steel lines pressed into the block? One was leaking on my neighbor's tractor where the line goes in. got the leak stopped but wondering what seals these lines.

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r4etired

06-18-2005 19:28:40




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 Re: Hydraulic coupler block on 656 in reply to Hayfarmer, 06-18-2005 08:54:19  
I believe the blocks have check valves in them to prevent implements from seeping down. the lines on my 656 are brazed to the block



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Aces

06-18-2005 10:31:27




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 Re: Hydraulic coupler block on 656 in reply to Hayfarmer, 06-18-2005 08:54:19  
Hayfarmer thoes lines must likly welded not pressed.



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El Toro

06-18-2005 09:08:08




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 Re: Hydraulic coupler block on 656 in reply to Hayfarmer, 06-18-2005 08:54:19  
Is there any tube nuts securing the lines? I don't think they would be pressed in. What was used to stop the leak? Hal



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Hayfarmer

06-18-2005 21:45:39




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 Re: Hydraulic coupler block on 656 in reply to El Toro, 06-18-2005 09:08:08  
Not too sure why it stopped. I took the coupler off to see what was behind it. hard to tell where the line actually ended but couldn't see any way to get it out. Put coupler back on the fitting behind it was the O ring yype where you tighten up the inside then tighten a nut against the O ring to seal. Afterwords got some air from next to the line and it quit leaking. Maybe the coupler fitting puts pressure against the line to make it seal.

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