Pull out a length of material that is slightly long, leaving some
slack.
If you load the material without creating some slack, the
material cannot be fed correctly.
Place the right edge of the roll material over the
grit roller (on the right edge).
Slide the roll material to place its left edge over the
grit roller.
At this point, check that the right edge of the roll material remains over the
grit roller on the right edge.
1: Grit roller
2: Right edge of the roll material