Agilent Technologies Agilent 7890 Series Maintenance Manual page 156

9
Maintaining the PTV Inlet
156
Score the column using a glass scribing tool. The score
6
must be square to ensure a clean break.
Break off the column end by supporting it against the
7
column cutter opposite the scribe. Inspect the end with a
magnifying loupe to make certain that there are no burrs
or jagged edges.
Wipe the column walls with a tissue dampened with
8
isopropanol to remove fingerprints and dust.
9 Position the column so it extends 17 mm above the end of
the ferrule. Mark the column behind the ferrule with
typewriter correction fluid or a marker. Slide the nut over
the column.
Mark column here
Insert the column into the adapter and finger- tighten the
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column nut. Looking through the slot in the nut, adjust
Bad
Good
Maintaining Your GC
17 mm