Insert Care - HP 5890 Series II Plus Reference Manual

Preventive Maintenance
Split/splitless capillary inlets
1. Loosen and remove the septum retainer nut. Remove and discard the
old septum, found either in the top of the inlet or inside the septum
retainer nut.
Figure 8-4
Septum Replacement, Split/Splitless and Split-Only Capillary Inlet
2. The new septum is placed in the top of the inlet base. Make sure that
sealing surfaces at the top of the inlet and inside the retainer nut are
clean (no particulate matter).
3. Replace the septum retainer nut, tightening it to finger•tightness(as
tight as possible by hand without using any kind of tool). Do not
overtighten; the retainer nut is spring•loadedto provide sufficient
pressure for sealing.

Insert care

Cleaning inlet inserts is discussed under Liner and/or insert care, later
in this chapter.
164
Capillary Inlet