Still no luck with getting Loretta's solenoid valve to work.
I brought a volt meter up and checked out the Scorpion Rocker switch and the Hirshman connectors ... they are good and all the grounds are good. Also verified the hydraulic connections in the system and they are all correct. I unplugged the QC's at the solenoid valve and hooked up hoses to my Huge Kama. The grapple works great under Kama's power so I don't know WTF?
I even took a hot wire right from the (+) and another wire to ground right to the solenoid terminals while the tractor was running. That procedure took the switch and connectors out of play...still didn't work!
Before I worked on testing the solenoid valve, I set all the pressure relief valves, starting with the new main relief valve by unplugging the QC's to the FEL valve. (See posts starting at #130 in this thread
My New Jinma).
It came factory set around 1350psi. I set it exactly at 16MPa or 2321psi. You could set that at the +.5MPa which would be 2393 but that is max. That Prince relief valve works very smooth and was steady ...responding well during the adjustment. It only took a little over a full turn ionwards (clockwise). Then I set all the other valves at 15.5MPa 2250psi. When I got to the rear remote valve, it was only 1000psi. I adjusted the pressure relief on it several times and never got it up much more than that. In fact, the gauge jumped around between 800 and 1200psi like it was throwing up. I think it's a faulty pressure relief or faulty valve or both. I was afraid to turn it in any more than I did. I need to get Jinma to send me another one.
I tried operating the CCM hydraulic top link with DPOCV with her rear remotes and it would barely move the rod out, but trying to suck it back, it didn't budge. I hooked it up to Huge Kama and it worked perfectly. So then I tried the remotes on the dump trailer and it did lift that up while empty. Remember when we used the dump trailer, it did lift it then but really strained to get the load up. It also didn't relieve when I tried to lower the dump trailer like how Scott said his did. It was screwed up then, I guess?
I wonder if that valve in the circuit could have anything to do with the solenoid grapple valve not responding? All the other hydraulics on her tractor work great, and that remote valve is the last one in line feeding the 3pt. the solenoid valve is 4th in line right after the old ZL-20 valve which now will power her hydraulic side links. The rear remote valve follows that one. But like I said, all the others work great.
Should I move the grapple solenoid valve up the line fed by power beyond from either the new FEL valve or the dump trailer Prince valve?
How do I go about checking if the solenoid valve is faulty or not (in detail) using a ohm or volt meter? I tried the direct circuit route already.
Any suggestions?