Perfect your polisher with a counterweight.
The Porter Cable 7424XP Dual Action Polisher is designed to move both in an orbital motion and a jiggling motion. With all that movement, the polisher may become unbalanced and the user has to compensate for the added wobbling. This problem is easily corrected with a counterweight.
A counterweight is included with your Porter Cable 7424XP. This is a replacement counterweight.
The counterweight fits on the eccentric housing, located just above the backing plate. This is the part that causes the plate to orbit. The semi-circular weight orbits with your backing plate to balance out any irregular motion and make the Porter Cable operate more smoothly. With the addition of a counterweight, your Porter Cable 7424XP will work like a charm and render a perfectly uniform finish every time.
This counterweight can be used with either the 5" or 6" backing plates.