The vertical tracking force (VTF) is what holds the stylus in the groove. A small scale under the stylus will read that. Too little VTF will allow the stylus to bounce in heavily modulated passages, causing distortion, and possibly damaging the vinyl.
The Grado cartridges have a recommended VTF of 1.25, recommended, with aange of 1.0 to 1.5 grams.
To properly set VTF, first you must balance the arm. Set AS to 0, and rotate the counterweight to where the stylus will hover at the height of the record surface. Put arm in the rest, and, without moving the counterweight, set the dial on its front to 0 at the top. Then rotate the entire counterweight to 1.25. Then set AS to 1.
The Sumiko arms have scales that are not the easiest to read. I use a flashlight and reading glasses.
The arm should be level, when playing a record.
The stylus has an overhang of about 15 mm, meaning that it will reach that far past the center of the platter spindle. This is why the cartridge is angled, and means that the stylus puts more force on the inside wall of the groove. The anti-skate, or bias, is to equalize the force on the inside and outside walls.
I use several arms, of differing lengths, so I use a 2-point protractor that works for all of them. Thid sets the correct angle and length of the cartridge position.
To use a 2-point protractor, set the stylus on the crosshairs of the outer grid, and square the cartridge with the grid (anti-skate off).
Move the stylus to the crosshairs of the inner grid (Move the protractor, too).
If the front of the cartridge is angled toward the center of the record, move it forward in the headshell, and start over.
If the cartridge is angled away from the label, move it back, and start over.
When you have the cartridge squared in both grids, with the stylus on the crosshairs, tighten the screws, and reset the VTF and AS.
That is a very nice turntable, and should sing sweetly.
Keep them spinning.