Inspect Spindle Drive Belt
Reason: Worn spindle drive belt.
-
Examine spindle drive belt for missing or deformed teeth. Replace drive belt if necessary.
Adjust or Tighten Index Sensor
Reason: Loose or out of adjustment spindle index sensor.
-
Check clearance between spindle index sensor and spindle’s index ring. There should be 0.10 mm (0.005 in.) clearance between the sensor face and the index ring when properly adjusted.
-
Check that the index sensor’s mounting nuts are tightened sufficiently to resist vibration.