I've got exactly the same log splitter. I took mine and took the two wires that we're going to the motor unscrewed both the positive and negative from the switch, and just double them up on the other side of the switch bypassing the switch altogether. I didn't have to cut any wires. And if I ever want to put it back the way it was I just have to screw them back to the other side of the switch. Simple.
I've got exactly the same log splitter. I took mine and took the two wires that we're going to the motor unscrewed both the positive and negative from the switch, and just double them up on the other side of the switch bypassing the switch altogether. I didn't have to cut any wires. And if I ever want to put it back the way it was I just have to screw them back to the other side of the switch. Simple.