Mr. P - thank you for responding. Forgive the confusion; I sometimes express myself poorly. On the company website, it is referred to as the clutch " lift rack"; in the service manual, as only the clutch "rack". It meshes with the clutch pinion shaft, converting the shaft's rotational movement into a direct outward lateral force, and pulls the pressure plate away from the clutch rings during clutch disengagement. It is pictured below as #2.
Just this morning, I removed the primary cover and found the answer to my question. Although the lift rack is keyed (note the 3 ears on the green section), the center shaft (in orange) rides within a bearing and seems to rotate freely. I'm not sure why, but as long as that's normal, I'm happy. I suppose one just needs to check the position of the lift's center shaft before attempting to reinstall the primary cover and re engage the pinion shaft. Thanks again - Woody.