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Message: <blockquote data-quote="Tazza" data-source="post: 7110" data-attributes="member: 82">Is the machine running bad or its just something you noticed? If it works ok, i'd leave it alone.As far as i was aware, the charge oil is supplied to replenish the oil that by-passes worn motors. I'm not sure how the charge oil enters the the pump, i assumed the whole inside of the pump was at charge pressure so any losses from the rotating groups would not actually be lost. If anything i would think it would be leaking from the motors. They are made to leak internally anyway, just as they wear it gets a little higher.If your charge pressure is pretty well constant when not under load i would suspect that the replenishing valves would be ok. It wouldn't hurt to check them if you are really worried, its just not a fun job gaining access to them.I really should setup a gauge on mine to check pressures at different speeds and load.</blockquote>