Harrison M300 lathe - apron drive seals, replacement & disassembly

The feed drive shaft runs through a tube in the apron. That tube is supported by bronze bearings and sealed with shaft selas and O-rings. There are also thrust washers. This video covers disassembly of these components, replacing the seals, and reassembly. 00:00 Intro 04:49 Quick way to replace shaft seals 05:30 Full disassembly procedure 11:51 Wild goose chase 19:44 Disassembly continued 25:08 Inspecting the drive tube 29:48 Reassembly Note: an oil channel runs up from the apron to the saddle. There should be an O-ring between the top of the apron and the underside of the saddle to prevent oil squeezing out there, although this is not shown on the parts diagram.