I need a hydraulics diagram for building my own wood splitter, it will have two cylinders, one for splitting and one for a lifting tray to lift bigger pieces onto the splitter. the hydraulic pump I got has three ports one large port that comes from the oil reservoir [ this I know ] and the two other smaller ports are located on either side of the larger port. are these smaller ports pressure ports?? I know that a return line goes to the oil reservoir. I know a little about hydraulics but I'm not able to make a double cylinder system on my first try.