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Message: <blockquote data-quote="Bisonhunter" data-source="post: 52648" data-attributes="member: 6785"><p>I can tell this is not your first dance. Flow pressure tested today and got just what you saw speced out. 13 gpm at full throttle and 2400. The current motor is directly coupled to the fan ( the loegering has that fan that works like a paddle wheel but it does allow for bearings on both sides of the fan) it is a Charlynn 104-1903 4.9in3 with a case drain, rated 3000psi and 20gpm, one site showing a rpm of 799. I think it was skidsteer ca. that made the comment that 750 rpm for the fan would be ideal. If so I find a 3.6 in3 motor seems to bring me up to speed. Parker has one that is rated for 3000psi but is really really proud of it. I keep coming back to the S series charlynn 103-1573. It has a psi rating of 2000 but will handle 2500 for 10% of every minute. So it seems that would work out to six seconds to shut off flow if everything jammed up. But there is a t on the incoming flow, one side going to the fan motor then continuing on to the auger motor, the other side of the t goes into a control valve body with two spools. So I am thinking if I jam up the fan some pressure/fluid will go through this control body and back through the return line giving me time to shut down easily. Tip toeing around huh. Do you see any bad assumptions or weak thinking here?</p></blockquote><p></p>