Agilent Technologies Agilent 7890 Series Maintenance Manual page 249

Maintaining Your GC
Cap
Capillary column
makeup gas
adapter
Place a new 1/4- inch Swagelok nut and ferrule onto the
10
makeup gas adapter.
Ferrule
1/4-inch nut
11 Slowly install the adapter straight into the detector
fitting. Jiggle the adapter, if necessary, to make sure it is
seated all the way into the detector fitting. Be careful not
to break the column end.
Detector fitting
Tighten the nut finger- tight and then use a 9/16- inch
12
wrench to tighten until snug.
If the adapter is properly installed, the distance between
the 1/4- inch nut and the bottom of the adapter will be
19 ± 1 mm. If the distance is 22 to 23 mm, install the
adapter into the detector fitting.
13
Maintaining the uECD
Indentation
Fused silica indented
mixing liner
249