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Case Tractors Discussion Forum
Show Parts for Model:

830 CK hydraulic relief valve

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Quihi4

06-13-2018 10:45:26




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I have had issues with the relief valve on about a 1967 830 CK loosing pressure over the years. I generally add shims and correct the problem temporarily, but I believe something is wrong in the valve. I have the shop manuals and have replaced the springs sleeve, piston, and piston assembly in the valve located under the 1 1/4 plug under the hydraulic valve. Can anyone elaborate on the exact position of the o-rings in the valve. The parts book shows two 5/8 X 3/4 X 1/16 O-rings and a seal. I know one goes in the top of the sleeve above the piston assembly, but I cannot see where the others go. Any assistance would be greatly appreciated....

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mEl

06-13-2018 14:03:03




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 Re: 830 CK hydraulic relief valve in reply to Quihi4, 06-13-2018 10:45:26  
Quoting Removed, click Modern View to see

the one goes where you said, the other oring and backup ring go in a groove partway down the bore where the piston goes in. Possibly you could pick it out with a curved Oring pick.



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