Original Message

 I've been at power line 25 years.  After awhile it's about as task oriented as a drive on the interstate. So  I listen to music, books on tape, take phone calls on Bluetooth talk on the radio or whatever. I'm as in tune with a 500's sound as most I'd say but I've noticed when a bearing sings it's also shedding metal and the chip light illuminates.

  Naw.... I've never heard a bearing sing just the light from a bad bearing.