To Install the DuoSwitch:
1.Remove the pen tip cone by turning it counterclockwise. Then pull the grip forward over the pen tip.
2.Install the original grip (the one with the DuoSwitch access slot) by aligning the pen case rails with the grooves inside the grip and pushing the grip over the pen tip. When properly posi- tioned, the DuoSwitch access hole will reveal the trimmer ca- pacitor. Then install the pen tip cone by turning it clockwise onto the pen.
3.Align the DuoSwitch into place, making sure to match the switch position to the grip molding. Then gently press in on the DuoSwitch until it snaps into place.
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