Recent content by Old_Paint

Is there secondary pressure relief in the loader valve that protects the structure of the loader boom from being overloaded to catastrophic failure?

When the loader valve is actuated, does it completely close off the PB, or does it only close it partially? I ask this because I can open the grapple clamp, curl forward , and lower the boom simultaneously, or open, raise, and curl back, but only as long as nothing is at end of stroke. I've...

In the opening post you said that all the circuits are "basically at zero pressure" when the system is in "Neutral" state. What makes the pump suddenly decide to boost pressure/flow? I already know the answer to this from working around industrial pumps in the metals industries but figured...

Swapped the hammer blades out for the Y-blades on my flail. Gonna see if they work better in the overgrown pastures I'm mowing. There's not much big brush in it, but a LOT of very thick grass and large weeds that build up on the hammers and stop them from cutting. I'm starting to think a RC...

Thanks for the diagram.

We’re saying the same thing again. It wasn’t a short circuit, but a failed micro switch that energized the solenoid, and I’m pretty sure that I said that it deadheaded when the cylinder stroked. The switch is now replaced and the 3FV is working just like it’s designed. But let’s move along...

Okay, I think I spotted my disconnect. You’re speaking of the system in ‘NORMAL’ status. In which case I completely agree that the 3FV doesn’t block the neutral flow, because the P and T ports are connected. HOWEVER, if the 3FV is actuated, the neutral flow is certainly interrupted and the...

What happened with my 3rd function is the button to close the clamp failed energizing the valve. Once the cylinders were fully stroked, the neutral circuit was blocked because there was no downstream flow beyond the cylinders. Whether it’s a failed valve blocking the flow or the cylinders being...

That, I can answer because I am well versed in the annoyance with this particular valve .. The 3rd function valve in nearly all kits is a 4 port 3-position open center valve. There is no PB function in the valve. The ports are P,T,A, and B, When de-energized (or normal position) the P Port is...

After moving the coop, I took the forks off and rolled the compost heaps. Didn’t figure many would be interested in seeing two large heaps of chicken poop, barn lime, garden scraps, wood chips and anything else we can’t feed the girls. Got that done and put the grapple back on for upcoming work...

Today kinda started yesterday. The TSC store that the missus works at wrote off one of the Producer’s Pride Guardian chicken coops. Look it up on the TSC website and you’ll see why I built my own coops. But a customer bought the thing and found mold on some of the wood in it and other water...

I know that block diagram, and I’m going to guess that the “position control valve “ is the one for the 3-point lift. Yep, that’s the simplest way to show the whole system What’s special about the loader valve that gives it the PB Port? Let’s do some detail on that and then move to why the...

If you have a particular reference that you feel worthy of reading, that would probably help me resolve some of my ignorance a lot quicker than just telling me “it can’t be done “ and that I’m wrong or mistaken. Anything in addition to the full hydraulic schematic of my tractor would be helpful...

One of my favorite shows was The Sopranos. Tony was the MAN. Bada Bing!

Maybe not cheaply, but most anything can be done with the right hardware and knowledge. I'm a retired electrical engineer who spent 40+ years in heavy industry and military process applications, most of which had a LOT of hydraulics, so I had no choice but to learn just a bit about the subject...