Whenever servicing a machine equiped with a non contact encoder. Use the tips in the video to make sure to the Non Contact Encoder is in optimum condition to provide trouble free operation.
Check to make sure the encoder ring has not made contact with the read head.
Check that hard washers are located under the mounting bolt heads. The hard washers should not be indented. If they are indented, it is possible the joint does not have sufficient strength to hold the encoder in place. This is especially true with Baumer encoders.
Please replace any suspect washers with PN 45-0042.