I realize this is 4 months olf-might help the next guy looking
Harbor freight (seller) does have pdf files of Central Machinery drill presses-just really hard to find. Parts are avaialble. If yours is simular to a current model sold on web site-you can download from the sales page. These presses are pretty generic-sold under different names-many parts interchangeble. Just quickly looking the current http://manuals.harborfreight.com/manuals/43000-43999/43389.pdf & http://images.harborfreight.com/manuals/38000-38999/38144.PDF is simular to my T-583
You could also contact: Harbor Freight
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • <phone>
Thanks for the information. I finally have some kind of user manual for my T-583 drill press. I am sure this will help me when I do need to repair my drill press.