Magnetic sensor and wire to operate the spindle lock. Wire passed from the sensor through into the casing where it is attached to the electronics. The sensor is held in place by a bracket. When the knob is turned and the magnet is brought close to this sensor, the spindle lock is engaged or disengaged.
See machine drawing for drawing number in our replacement parts section.
See Used On tab for reference to machines using this part and the corresponding drawing number.