Nissan 370Z Forum - View Single Post - Porter Cable 7424XP

wheee! · 07-12-2012, 12:54 PM

Quote:

Originally Posted by Pelican170

Installed? There was nothing in the instructions saying i needed to install anything except for the backing plate...

This:

Quote:

Porter-Cable 7424XP Counterweight Facts
5" or 6" Polishing Applications
The counterweight is a half-moon shaped piece of metal attached to the rotating shaft of the tool. This smooths out the random orbit action by providing a counter balance to the elliptical orbit of the rotating backing pad. If you change the pad size you must also change the counterweight or suffer unnecessary vibration and possible damage to the tool.

7424XP Polisher Facts

7424XP Polisher

7424XP Countweights
The counterweight off-sets the weight of the pad and ensures overall balance of the system. The Counterweight always has to match the pad to minimize vibration.

5" Pad Counterweight
#874011
For pads between 95 and 105 grams. 6" Counterweight
#699933
For pads between 125 and 135 grams.

There are two different counter-weights which are clearly marked to indicate use with either a 5" or 6" backing pad. Therefore, if you decide to outfit the 7424XP with a 6" backing pad you must use the 6" counterweight. If you decide to use 5" backing pads you must use the 5" counterweight.

NOTE: This applies for sanding as well as polishing applications.