I found this in my Subaru Manual. Page 242, What I rarely hear or read what people never do: Step 2 under Installation.
13.Crank Pulley
A: REMOVAL
1) Remove the V-belts. <Ref. to ME(H4SO)-36,
REMOVAL, V-belt.>
2) Remove the crank pulley bolt. To lock the crankshaft,
use Shop Tool 499977100 C...