With SST2 (pulley lock nut) held,
turning SST1-A clockwise relatively loosens the pulley lock nut.
(4)
Remove the alternator from SST2 and then while
holding SST1-B, turn SST1-A clockwise to loosen itself, and remove
SST1-A and SST1-B from the alternator.
Remove the pulley nut and alternator pulley.