I have a john deere with a closed center hydraulic system. I bought a big *** (16 foot) hydraulic post pounder with side shift. :dance1:
I have to bungee the hydraulic control lever open on the tractor to send hydraulic fluid to the remote port on the back of the tractor. From there, it goes to the pounder and then comes back via a return line stuffed into the fill hole on the tractor's reservoir tank (remove cap, stick hose in). It does not use the second remote port at all.
I hooked it up tonight and the hydraulics work fine. But I notice that when I have the lever held open on the tractor that nothing flows through the return line into the tank on the tractor. My arms aren't long enough to see if that holds true when operating the hydraulic levers on the pounder, but I assume fluid flows into the return when using the pounder.
I would have thought there would have been constant fluid flowing into the return line and then it gets diverted when using the pounder but eventually flows back into the return. It feels odd to have the tractor hydraulic lever open and no fluid flowing. I would think that would build heat and would be hard on the tractor.
I'm guessing that I'm thinking about this all wrong? I'm guessing that no fluid flowing is no different than having the control lever on the tractor closed. So thinking this through, am I correct in concluding that it doesn't hurt a hydraulic pump to be trying to pump fluid that can't go anywhere? Do they have some kind of internal bypass or something?
I have to bungee the hydraulic control lever open on the tractor to send hydraulic fluid to the remote port on the back of the tractor. From there, it goes to the pounder and then comes back via a return line stuffed into the fill hole on the tractor's reservoir tank (remove cap, stick hose in). It does not use the second remote port at all.
I hooked it up tonight and the hydraulics work fine. But I notice that when I have the lever held open on the tractor that nothing flows through the return line into the tank on the tractor. My arms aren't long enough to see if that holds true when operating the hydraulic levers on the pounder, but I assume fluid flows into the return when using the pounder.
I would have thought there would have been constant fluid flowing into the return line and then it gets diverted when using the pounder but eventually flows back into the return. It feels odd to have the tractor hydraulic lever open and no fluid flowing. I would think that would build heat and would be hard on the tractor.
I'm guessing that I'm thinking about this all wrong? I'm guessing that no fluid flowing is no different than having the control lever on the tractor closed. So thinking this through, am I correct in concluding that it doesn't hurt a hydraulic pump to be trying to pump fluid that can't go anywhere? Do they have some kind of internal bypass or something?