Pro-Ject Audio Systems RPM 3 CARBON Instructions For Use Manual page 15

Once the cartridge is mounted, balance the tonearm for the proper vertical tracking force indicated for each
model cartridge (see specifications at the end of this manual). To set the tracking force, first balance the tonearm.
Locate the counterweight. On virtually all pivoted tonearms, it will be located at the rear of the tonearm (meaning
at the opposite end from the cartridge). Generally, it looks like a fairly large, shallow cylinder, usually black in
color and often has numbers (indicating grams of force) ranging from 0 to 3 or more printed on it. As you move the
counterweight backwards, the cartridge end of the arm will lighten (reducing stylus tracking weight), while moving
the counterweight forward will increase the stylus tracking weight. The first objective is to "statically balance" the
arm, which is to achieve the proper weight balance such that the arm "floats" level. Practice a bit and you'll find
it's fairly easy to achieve. Remember to exercise caution so that the stylus and cantilever are kept clear of any
obstructions and are prevented from striking anything that could cause damage. After achieving static balance,
adjust the counterweight to the desired tracking force by bringing the weight in toward the cartridge. Do not apply
anti-skate until the cartridge is aligned. This will be addressed later in the setup process.