Ensure that your anti-skating mechanism is either disabled or set to zero.
Place a record on your turntable, and the printed protractor on top of it.
Your initial objective is to position the cartridge in the headshell so that the stylus traces the arc on the template. Gently lower the stylus at various points, but never slide it across the paper.
To start, visually align the spindle-to-pivot line with your tonearm pivot as a reference point.
If the stylus touches the arc near the platter’s edge but falls short of it near the spindle, shift the cartridge forward within the headshell.
If the stylus touches the arc near the edge but extends beyond it near the spindle, move the cartridge backward within the headshell.
By adjusting the cartridge’s position in this manner, you should soon reach a point where the stylus tracks precisely along the arc, regardless of its position.
Next, use a piece of tape or a small rubber wedge to prevent the platter from rotating. Fine-tune the cartridge’s position as accurately as possible, with a maximum allowable error of a few tenths of a millimeter.
Once the stylus precisely follows the arc, align the cartridge’s offset angle with either grid. The grids are placed at the two null points, and feature closely spaced double lines for those who prefer aligning the cantilever instead of the cartridge body. A central line and a perpendicular line are provided to prevent misjudgment caused by the arc’s angle within the small circle.
Once the stylus tracks the arc precisely and the cartridge body or cantilever aligns with either grid, congratulations, you’re all set!”