Haas Alarm: 109 Y SERVO OVERLOAD – The load on the Live Tool Servo motor has been exceeded. Adjust your program to reduce the tool load placed on the Live Tool Servo. Horizontal mill: Servo brake may not be disengaging. 24VDC is needed to release brake. Power for servo brake is supplied from Trans/Brake PCB P5/P9, or on I/O PCB P78/P79 when servos are powered on. Verify power to AMP +/- 12 325VDC Buss.