Solution: Variable position of cylinder in compliance with <R74>

[cjwmam]

Are you sure it's a center pressure valve? Also, when you were moving the cylinder, did you need to adjust the regulator to change the position of the rod, when it was not at either extreme?

Yes it is center pressure valve, I started with closed center but could not dump all air from system so went to presure center. once set you do not need to adjust regulator. you can stop & start at any point. up or down the stroke with only powering silonoid on one side or the other