Hologic DISCOVERY A, Technical Manual

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Discovery QDR Series Technical Manual
5-8
3. Pull the tabletop to the left far enough to remove the right table rail end cover,
and remove the cover. Mark this as the right cover so that it is not confused later
with the left cover (they are not interchangeable).
4. Pull the tabletop to the right far enough to remove the left table rail end cover,
and remove the cover. Mark this as the left cover so that it is not confused later
with the right cover (they are not interchangeable).
5. Unplug the encoder from the Motor Controller Board and pull out the cable.
6. Remove the coupling holding the encoder to the belt drive.
7. Remove the encoder from the bracket assembly.
8. Replace the encoder on the bracket, install the coupling but do not tighten the
screws.
9. Restore power, boot the computer and login as Service.
10. Perform the MOTOR$TY calibration procedure on page 3-38.
Note: When starting this procedure, make sure the encoder coupling setscrew is not
tightened.
5.4 Table X FRUS
This section describes how to remove and replace the FRUs associated with Table X
motion of the Discovery (see Figure 5-4).