No Machining for a While

The Y-axis has stopped working.   The axes on a CNC mill are even more demanding of lubrication than a manual mill.  It gets a lot more motions.  A manual mill also starts to tell you,  "I need oil."  The motors are neither that sensitive to resistance nor emphatic to the gears.  You might expect more fellow-feeling for another machine!

Anyway, I only need to return the Y-axis to Sherline for repair.   It is not immediately obvious how to separate the X- and Y-axes.  I put these together when I bought this ten(?) years ago.  I cannot find anything online that explains how and the technicians at Sherline are gone for the day 

It was getting a bit hot in there anyway.  I expect to install an A/C in the garage in a week or so.

UPDATE: I just needed the right search string: "sherline 5400 remove Y-axis."