Hey Gang, I have a 542-B Bob Cat. I am told That I can turn up the pressure and get more lift and bucket power. A friend of mine has an older model and he has turned his up , so far all is well, I am concerned about blowing hose's or makeing the the hydraulics leak in general. Has any one turned theirs up? There is a cover nut that you take off of the valve body and then screw the smaller bolt under it in and that gives more pressure, I sure would like to know if this is an exceptable thing to do, As it is it will not lift a full bucket of dirt or rock and when I use the back hoe attachment it really ;grunts to do any thing. Thanks for all help on this thing.. Paul.