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Message: <blockquote data-quote="Tazza" data-source="post: 11100" data-attributes="member: 82">The clunking could even be a drive chain or sprocket. Test the slack and bearings first.As for he leaking down, it could be your load checks in your control block too. That seems a bit excessive to drop that fast with only internal leakage, but its not un-reasonable.one way i found that seemed to tell me if its rams or load checks is to sit in the machine, raise the arms. Turn the machine off and watch the ram sicks be drawn back as the arms drop, push your heel down on the pedal and see if it slows or stops moving. If it does stop or slow its a tell tale sign your load checks are not functioning properly. This worked on my old 731 so i'm not sure if it will tell you a lo on your newer machine but essentially the load checks work the same.</blockquote>