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Message: <blockquote data-quote="Tazza" data-source="post: 3352" data-attributes="member: 82">Not a problem, as you did mention you replaced the seals in the load checks, or load valves and it was rite makes me think you were given the wrong seals, they seem to have worked but then shredded. You really want 90 duro hardness O rings and back up rings for this section, it is under extreme load and gets quite hot. 90 duro O rings handle the heat and pressure MUCH better than the standard ones.I read an atricle about people thinking that cylinders that creap have internal leaks past the piston seal that is the cause. I really should post it when i remember, if there is no external leak its not a cylinder problem.Do you have a service or parts manual for your machine? if not, i can scan a diagram of the valve so you know what needs to be worked on.</blockquote>