Originally Posted by
motif
Hey guys, I have a Mazak QT250HP, and I am getting alarm 221 Turret Clamp Sensor Malfunction). The turret will rotate,and stop on the correct tool, but is not completely locking in. The screen shows the correct tool ID, but when I try to rotate the turret by hand to see if it is locked in, it feels spongy. When I power it down for a reboot, the turret releases, and free-wheels...bringing the heaviest tool on the turret down toward the bottom side! I took the valve off the back, and checked the solenoids and cleaned the valve plunger. It all looks good. When I rotate the turret, in either direction, I hear the valve in the back click, but its not as loud and strong sounding as it used to be. Does anyone have any advice? Thanks....