I've got an issue with the cab hydraulic system on the M1085A1P2 variant. I've replaced the manual hydraulic bank as that's what my troubleshooting led me to. After replacing it, I still cannot get the cab to raise or lower. Someone had mentioned the valves on the bottom on the manual hydraulic box and a certain sequence they had to be done in in order for the cab to raise or lower. Going through the troubleshooting in the book again it says to replace the manual hydraulic manifold again. I'm having a real hard time believing that the same new part is bad. So far the truck has had the main pump and reservoir replaced and the relay up on top. Anyone have the same issue or can break down the sequence of these valves?
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