Agilent Technologies 6850 Series Service Information page 111

Removing/Replacing the septum head
The septum head connects to the inlet via a free-
spinning retaining nut.
1. Turn off the inlet heater and allow it cool.
2. If replacing the septum head, disconnect the
split vent and septum purge lines.
3. Use a 5/8-inch wrench to loosen the retain-
ing nut on the septum head.
Released: April 2004
Figure 1-41. Removing the septum head
6850 Series Gas Chromatograph Service Procedures 111