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Originally Posted by tlbuser Interesting concept you hit on. So, just using the path of least resistance until they equalize? How did you plumb it in so that the thumb has "pressure" all the time for it's static positions?
I've had good luck getting parts at Progressive Power and Control , kinda far from you, but UPS goes almost everywhere  |
My solenoid spool valve, when de-energized, simply blocks the flow of
oil to one side of the thumb cylinder. This converts the thumb to a
fixed thumb since oil can no longer enter or exit EITHER side of the cyl.
There is no need for a 2nd valve at the other cylinder port.
I checked the website you referred to, and I do see they carry several
brands I use. I will try them next time I need a quotation.