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NEMO | What tractor? Is it the original JD style couplers on late 20, 30 or 40 series, or ISO conversion kits. I usually don't have any trouble with them leaking after rebuild. If the barrels are slightly worn, they will leak after being rebuilt. I use white lithium assembly grease to lubricate the seals during assembly. Also maKe sure the back-up rings are installed correctly. Same applies to the early 20 series that had only the couplers at the rear. Good luck. | |
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