Thank for making a video that isn’t 47 minutes long to give us that info. Great build, great info! The aux hyd is my hang up so far and I’ve been looking at diverters but you gave me a new idea. Not sure why I didn’t think to do that!
I like building things from scrap too. BTW, while your remote will work for now, to plumb in the second valve you need to use “power beyond” (or high pressure carryover). The high tank pressure on the main valve will eventually cause that valve to leak badly. I have two tractors where previous owners did this and I’m in the process of replumbing them both.
Explain this to me as if I’m simple please. I don’t know a tin about hydraulics. Just enough to be dangerous. So the pressure coming off the main valve where its going to return will be too high pressure for the auxiliary valve and cause it to leak?
@@ryanvanesch9329 other way round. Adding the auxiliary valve means that when you have a load demand on that circuit the pressure in the tank/return section of the main valve will get too high and it will leak. The tank/return section of an open centre hydraulic valve (system even) is meant to be fairly low, just high enough to let the oil flow back to the tank. I think some valves will have a spec for it. The good/bad news is that it will often seem to be working fine. But if the load on the auxiliary valve gets high enough for long enough then the resulting high pressure on the main valve tank circuit will cause a leak. The “power beyond” or “high pressure carryover” adapter isolates this high pressure from the tank circuits of the main valve. It took me a while to get it all straight too. I found it easier when I realized that the oil is always flowing in an open centre hydraulic system, and the pressure demands work backwards from the loads, through the valves, and end up at the pump which will work hard enough to meet them (until the pressure relief valve opens, or something breaks (if you don’t have one). Things are different in a closed centre system. Hope this helps.
@@AndrewMoizer I’m trying to steal hydraulics from my loader control vave to run a third funtion (grapple) and I dont have any rear remotes to run from. Instead of a diverter could you tee into the supply for the main loader valve and send it to the aux valve and then tee the return line from the aux valve back into the return line for the main loader valve?
Thank for making a video that isn’t 47 minutes long to give us that info. Great build, great info! The aux hyd is my hang up so far and I’ve been looking at diverters but you gave me a new idea. Not sure why I didn’t think to do that!
Simple and Has worked great for me thanks!
I like building things from scrap too. BTW, while your remote will work for now, to plumb in the second valve you need to use “power beyond” (or high pressure carryover). The high tank pressure on the main valve will eventually cause that valve to leak badly. I have two tractors where previous owners did this and I’m in the process of replumbing them both.
Thankyou I should probably refigure that before it leak. Repurposing junk metal is always fun adds some character to projects
@@simplytinkerdad I would do that, and before you end up wasting a pail of hydraulic fluid topping it up over the years.
Explain this to me as if I’m simple please. I don’t know a tin about hydraulics. Just enough to be dangerous.
So the pressure coming off the main valve where its going to return will be too high pressure for the auxiliary valve and cause it to leak?
@@ryanvanesch9329 other way round. Adding the auxiliary valve means that when you have a load demand on that circuit the pressure in the tank/return section of the main valve will get too high and it will leak. The tank/return section of an open centre hydraulic valve (system even) is meant to be fairly low, just high enough to let the oil flow back to the tank. I think some valves will have a spec for it.
The good/bad news is that it will often seem to be working fine. But if the load on the auxiliary valve gets high enough for long enough then the resulting high pressure on the main valve tank circuit will cause a leak.
The “power beyond” or “high pressure carryover” adapter isolates this high pressure from the tank circuits of the main valve.
It took me a while to get it all straight too. I found it easier when I realized that the oil is always flowing in an open centre hydraulic system, and the pressure demands work backwards from the loads, through the valves, and end up at the pump which will work hard enough to meet them (until the pressure relief valve opens, or something breaks (if you don’t have one).
Things are different in a closed centre system.
Hope this helps.
@@AndrewMoizer I’m trying to steal hydraulics from my loader control vave to run a third funtion (grapple) and I dont have any rear remotes to run from. Instead of a diverter could you tee into the supply for the main loader valve and send it to the aux valve and then tee the return line from the aux valve back into the return line for the main loader valve?
Good job, need a grapple and good channel ( no need for annoying music)
Sooo, no one knew what the brackets were from...
Frame halo there on about every freightliner truck built the last 15 years