Step 1
Loosen the locking screws and remove/insert the pins into the "FA" holes.

Step 2 - Not Illustrated.
Pins are inserted into the "TC" positions.
"TC" is for Top Clearance.
This step is to remove excess material on the graver
and to speed the task on subsequent sharpenings.
The step may not be necessary for several resharpenings of the graver.

Step 3 - the "Secondary Relief" angles ("SR" pin holes)

Step 4 - the "Primary Heel" - the "PH" pin holes