Larry, check the easy stuff first, fluid level. Loose connections (especially on the suction side of the pump) the larger diameter hose is the draw side and they should be tight so not too suck air into the system. Air in the fluid will cause a foaming and that’ll al low what you have.There’s gotta be at least one more dumb-ass out there!!! Chad??? Jesse?
Got a question too - when I was finishing up I restarted the splitter to retract the wedge. When I did, hydraulic fluid started squirting out the breather hole on the reservoir filler plug. I operated the cylinder and it did not stop. I shut it off, moved the handle back and fourth some, restarted, and it proceeded to squirt again. Any ideas? Have not tried google yet.