The floppy drive on my pc wasn't quite working right, so I decided to take it apart and clean the heads. The heads were so close together, that I couldn't help but side-sweep them. (Every site I've seen says to dab, not swipe to avoid knocking the heads out of alignment) I also noticed on accident that the drive head arm moves up slightly. Am I supposed to seperate the heads first before cleaning them by moving this arm? Ironically enough, the drive still seems to work.