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I'm not a hydraulics expert but I'll give you my opinion. The 2 stage pump probably won't give you any advantage. The second stage would be for a low powered log splitter and kicks in when you run short of power to move things at the higher flow rate. The 3600 rpm is because that is the governed speed of many small engines. If you are thinking of going direct drive off the front of the crankshaft, you will want a pump rated at 1650 rpm at most. You need good gallons per minute at that speed, I would think 16 to 20 maybe. The WD has live hydraulics unless you hand clutch doesn't work, but you would need to add a pair of 2way valves and a return line to use the WD pump. I guess you will need the valves anyway so that's a wash, but you might need to add some capacity to the reservoir. There are 2 way cylinders out there that would work with the WD system and give you plenty of lifting power. If you go with an add on pump you need to figure out what GPM you need and what pressure you want to run the system at, that will lead you to how much HP you will be using to do the work. That's why they have engineers I guess. I would look around for one of the pumps that guys put on Farmall M's for live power. It will mount between your Mag and the governor and makes a pretty clean easy set up. Now where will your reservoir be? In the frame of the loader? Hanging off the front bolster? You could tie into the transmission and differential and add filter and run hytran fluid back there. Just lots of things to figure out before you start spending money on something that won't pan out. Charlie
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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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