HP 5890 Series II Plus Reference Manual page 26

Columns and Fittings
Inlet inserts
Exercise care! the oven, and/or inlet, or detector fittings may be hot
WARNING
enough to cause burns.
Figure 1-9
Installing a Glass Insert in a Packed Column Inlet
1. In handling the insert, avoid contaminating its surface (particularly
its interior).
2. Remove the septum retainer nut and septum.
3. Carefully remove the old insert (if present) by withdrawing it straight
up. A match stick or similar fibrous item may be used as an aid in
lifting the insert from the inlet.
4. Install the new insert by dropping it carefully, straight into the inlet
liner, flared end up.
26
Flared End
Insert