Hi Witzend, welcome to Outdoorking.

Until one of the serious Greenfield guys chips in, this is the blind leading the blind, but here is an extract from the Illustrated Parts List for the Evolution 14-32 (which may be much the same as the 14.5-32 - if it's not, say so):
[Linked Image]

This is telling us that Item 19, the Disk and Spindle, drops out from Item 23, the Spindle Housing Unit, after you remove the hardware from the top that is holding them together (nut, pulley, assorted washers and key). In other words, it seems to be currently only held in by the normal transition-fit of the bearing inner rings on the spindle. If you were to put a suitable block of brass on top of the spindle, and smite the brass downward with moderate force, you should see evidence of movement. If you don't, let's contemplate this further.