Question:
Took me the longest time to navigate your web site and be able to sign on but that is another issue.
I was just given a gift of a PP325 trimmer with a brush cutter that I am attempting to install. You "unscrew the trimmer head by turning it clockwise" after stabilizing the gear box/dust cap with a hex wrench or screwdriver. Really? How much pressure do you exert? I took two hands and could not turn it. Your service call center said that should do it well it didn't. Is there a special magic to this?
As a suggestion there were online videos for these products but none on this particular problem.