I have never tried to disassembled a serria before; however I recently disassembled a clicker from EB. After screwing the tip off I used a small diameter transfer punch (AKA pen disassembly tool) and angled the punch so it caught the side of the click mechanism and tapped it out. Then I used a larger punch just under 3/8" and tapped the part the tip screws onto. You need to use a punch that has a "shoulder", the smaller diameter transfer punches just have a point which won't work. Hope this helps.
Ben