I purchased an 810 of unknown serial with the 12 port block. No one I have talked to can tell me anything about it much less figure out how to make it work. Guess that is now my job since it was down all winter. It is installed on a 2000 f350 superduty and has issues. I am unable to find specific information from dealers. I built a test module to manually cycle the various functions of the 8 hose blade and frame. I am having to reverse engineer the hydraulics and electrics to verify operation and function. Does anyone have a port out diagram of the hydraulics and solenoids that matches? I am still trying to confirm the hoses are correct and what is supposed to do what and when. I had to un- tweak a double solenoid valve and all valves have operational travel now. This is where I am right now to figure out how it is supposed to work. The hard way. Currently I have function tested the wings and angle function, but it acts like a valve is not returning on occasion and the pump loads down without anything moving. I have swapped the double valves in 3 places and it still seems to randomly happen until it sets long enough for internal pressure to relieve itself.