Hi,
I have a problem with the live tooling on my mazak sqt15ms. I used it 2 weeks ago and it worked fine. But now when I try to spin a live tool in either a programme or manually it struggles to spin. it spins for a few seconds, stops, spins for a few seconds, stops, it continues like this for a while and then stops completely and I get Alarm 239 on the screen which is : " Milling Coupling Sensor Malf."
Has anyone any experience with this ? Do I need to take off the turret and start looking for a sensor ?

Any help would be appreciated.