In order to adjust the grommet pressure.
-Insert grommet on die #3 as shown in figure 1 below. Make sure bottom of grommet is up above bottom of top die. No washer is needed for 8mm grommets. For 12mm grommets, insert washer on die #4 as shown in figure 2.
-Do a test grommet with the material you are using,
-Slowly loosen #2 die to tighten grommet fit. Use ¼ turns or less at a time.
-Try to spin grommet in material. If grommet is loose, continue to bring die #2 down until grommet is secure in material and won’t spin.
-When grommet tension is correct, tighten tension nut #1
FIG 1
FIG 2
Grommet
Washer