Agilent Technologies Agilent 7890 Series Maintenance Manual page 252

13
Maintaining the uECD
252
Ferrule
Column nut
Septum
Score the column using a glass scribing tool. The score
5
must be square to ensure a clean break.
6 Break off the column end by supporting it against the
column cutter opposite the scribe. Inspect the end with a
magnifying loupe to make certain there are no burrs or
jagged edges.
7 Wipe the column walls with a tissue dampened with
isopropanol to remove fingerprints and dust.
Install the column.
8
If the column id is 200 um or more, push the column
into the adapter until it stops at the indentation. Pull it
back 1 to 2 mm and tighten the column nut with one
5/16- inch wrench on the adapter and another 1/4- inch
wrench on the column nut.
Bad
Good
Maintaining Your GC