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Message: <blockquote data-quote="Bandit1047" data-source="post: 14523" data-attributes="member: 1222"><p>From what I understand, a case drain is normally used on High flow systems to return some portion of the oil back to the tank to allow it to mix with the cooler oil in the tank. High flow systems would boil the oil if it circulated from the implement back to the pump and back to the implement, not getting any opportunity to cool down. If you are running a high-flow implement on low flow hydraulics, the performance will be less than spectacular. To make a case drain you need to run a simple return line to the hydraulic tank. You may be able to run it into the filler tube or top of the tank. Joe</p></blockquote><p></p>