Thanks for the great instructions! For O-ring replacement in CEJN coupling, the correct size is (in SI units :) ) 2.9 X 1.78 [mm] For colder...
Thank you! Now I can check my local hydraulics & pneumatics supply houses if they have this in stock. Maybe in the end of the day I am able to get...
CEJN coupling in my Optimus Nova+ pump is leaking and replacing the O-rings did not solve the issue. Might be that the spare O-rings were original...
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