[ossiblue]

Just to clarify a bit, I have adjusted the warm control pressure several times and, as Tony noted also, it is done by moving the entire cylinder with the inlet/outlet ports either up (lower pressure) or down (increase pressure)--no turning involved. I did not use the method shown in the diagram but rather used the tapping method with a drift and hammer--something you can do because you wish to raise your pressure and that can be done without disassembling anything, if you're careful and work slowly!