First off, I don't really know what I'm talking about here. I'm just reading the Army Hydraulics Field Manual (FM 5-499). Also apologies, because hydraulics questions always get into complicated arguments.
I have two control valves left over from a loader, which were used with a front-mounted pump on my JD 1010. They were plumbed in a simple circuit with the pump and a return line to a reservoir, plus control lines to the cylinders (double-acting). I don't know whether these two controls have a parallel secondary circuit between them, but I don't think that matters. (I don't really need two remotes, but I'd have to go out of my way to hook up just one.)
I'd like to put these spools in my 1010 rockshaft system (belly pump) to create two remotes. Can I install these valves in the high-pressure line (from the belly pump) in series with the rockshaft (spool bypass output to rockshaft input)?
I'd use the remotes for things like a wood splitter or to control the angle of a scrapper blade. I don't really care about response time with anything; and I won't operate more than one thing at a time (I only got one right arm). The remotes won't do anything that needs to stay pressurized if I use the rockshaft. I'm trying to keep this simple. And cheap.
I understand that I can't deadhead the control outputs because this is an open-center pump. So I'd want a pressure bypass between the control outputs and the return flow (to the rockshaft), or at least a way to hook the control outputs together if no remote is attached.
I also understand that the controls and any attached remotes would need to handle the pressure of the pump (upstream). If I don't operate the spools and the rockshaft at the same time, I don't think I'll have any issue with downstream rockshaft pressure wrecking the spools.
Finally, I get that using the remotes could decrease pressure in the rockshaft input; but I think any 3-pt load should remain static if I don't move the quadrant.
I know JD offered a remote, but it's too rare and pricey. I need to study it more, but I suspect it's a power beyond setup with the remotes downstream.
Am I seeing this right?
(Apologies if this has been hashed out before. I searched but didn't find it. But sure found lots of related hydraulic chatter.)
I have two control valves left over from a loader, which were used with a front-mounted pump on my JD 1010. They were plumbed in a simple circuit with the pump and a return line to a reservoir, plus control lines to the cylinders (double-acting). I don't know whether these two controls have a parallel secondary circuit between them, but I don't think that matters. (I don't really need two remotes, but I'd have to go out of my way to hook up just one.)
I'd like to put these spools in my 1010 rockshaft system (belly pump) to create two remotes. Can I install these valves in the high-pressure line (from the belly pump) in series with the rockshaft (spool bypass output to rockshaft input)?
I'd use the remotes for things like a wood splitter or to control the angle of a scrapper blade. I don't really care about response time with anything; and I won't operate more than one thing at a time (I only got one right arm). The remotes won't do anything that needs to stay pressurized if I use the rockshaft. I'm trying to keep this simple. And cheap.
I understand that I can't deadhead the control outputs because this is an open-center pump. So I'd want a pressure bypass between the control outputs and the return flow (to the rockshaft), or at least a way to hook the control outputs together if no remote is attached.
I also understand that the controls and any attached remotes would need to handle the pressure of the pump (upstream). If I don't operate the spools and the rockshaft at the same time, I don't think I'll have any issue with downstream rockshaft pressure wrecking the spools.
Finally, I get that using the remotes could decrease pressure in the rockshaft input; but I think any 3-pt load should remain static if I don't move the quadrant.
I know JD offered a remote, but it's too rare and pricey. I need to study it more, but I suspect it's a power beyond setup with the remotes downstream.
Am I seeing this right?
(Apologies if this has been hashed out before. I searched but didn't find it. But sure found lots of related hydraulic chatter.)