It cool not having to go to work. A little scary but I am just going to slide into retirement , from being paid to work anyway. Since I have so much time on my hands ( except fot the list my wife gave me this morning) I went up to the Cat dealer and asked them what they knew about this valve we are looking at. Turns out it is an active pn used on a couple of stump grinders and cold planners. For the service guy to find any service docs he stuck in the PN and it gave him the attachments, Then in the attachment file he went back to the valve. All parts are available, I did not ask how much , He did mention that two coils are the same and one is different. What I did get interested in was the valvle schematic and operations. He printed it out for me and I scanned it and it is attached. We pretty much got it it right in the discussions here. The check valve is as I thought , just like the check on the CCM top and tilt cylinders. Keeps that particular line from leaking back through the 4 way. Releases when command pressure is applied.
So I am now thinking about which port I want to use for what , And what I would want to use that check valve line for, I think I will use the first port, priority for a set of QD for blower rotate or grader blade angle. They change all the time and maybe the force on the grader blade will leak back but one would always be watching that anyway, Then I just got a tilt cylinder with doble checks so put that on the second set of ports. Then my top cylinder has no checks so use the third port with the check to keep it from falling . The only issue here is I like to use the 4 way as foward is down implement and back is up implement and I am not sure which way the selector would work . I guess I can give that up to make the top not fall. I could make the tilt the same if it is backwards and I will just have to remember both the same. The Top and Tilt I will not use QD ,they never come off so just JIC connectors. I am still working on fittings for the valve .
Ahh I scanned the doc as 9 pages and even .zipped it is too big. I will have to rescan into 2 sections stand by.