Live hydraulics is a circuit from the auxiliary pump to the 3pt lift that allows it to operate when the PTO is not turning (i.e disengaged or clutch depressed). That circuit can not carry more than 2.5 GPM or it will swamp the control valve inside the3 tractor and the 3pt won't operate correctly - it will raise and stay there due to the eexcess back pressure in the control valve.
When I use a bigger pump for remotes I add a flow divider valve that splits the pump output into two streams - 2.5 GPM for the live hydraulics and the full flow to the remotes. The flow divider and extra plumbing increases the cost by roughly $200 - the flow divider is a $100 component just by itself. You can simply eliminate the divider and live hydraulics related plumbing and still have 10 GPM "live" remotes but you will not have a "live" 3pt lift. It's also easy to add the divider and second circuit at a later time if you find the money and/or decide you want/need it. Once you have the basic system in place the "extras" are easy - all it takes is $$$$ ;-)
There are a number of configurations for running a log splitter off the tractor - all cheaper and IMO better then using a PTO pump. Give me a call or drop me an email if you want the full rundown.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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