Question for you guys, this is the pump set up they use,
It is four valves. But only three active cylinders. And the way they have it plumbed. Are they using the first valve to deadhead the pump and then mixed with other valves when input applied to sticks? I don't know much about these but that's not how I did the dozer. Would it hurt this style pump to change around to prv being the deadhead and then gaining another valve for say a thumb? And if so what advantage is this configuration? Or is a disadvantage ?