Apr. 1, 2015. TDK Corporation has announced that its Hong Kong-based HDD head manufacturing wholly owned subsidiary, SAE Magnetics (H.K.) Ltd.
You use a wrench to screw, or unscrew a bolt. A screwdriver is for screws. Either way you turn it left. Some bolts have reverse threads and would turn the other way to unbolt.
Unscrew the diverter from the top of the body using a coin (if the diverter is plastic) or a screwdriver (if the diverter is metal). Be sure to remove the entire diverter. Clean the diverter by soaking in a 50/50 vinegar and water solution for 2 hours.