Originally Posted by SubieMonte
Noob here. I am wondering how to know the OPM settings from machine to machine. Is a 4 = 4800 or does the dial need to be closer to 5? I purchased a used PC7336 from a neighbor and couldn't find any online help. The HarborFrieght DA I purchased didn't have any either but when I used the same dial setting I think I heated up the compound and specks flew everywhere.
From a practical point of view, OPM's dont matter because to remove defects or polish paint after any compounding work you're going to be on the 4-5 setting.
Meguiar's is the only company I know of specifically stating to use the 4800 OPM speed setting and that's for their D300 compound.
For just about any other compound or medium cut polish you're going to put any of the various DA Polishers on the 5-6 speed setting and get to buffing.