Agilent Technologies Agilent 7890 Series Maintenance Manual page 168

9
Maintaining the PTV Inlet
168
Unscrew the assembly tool into two pieces: the ferrule
5
guide and the compression fitting.
Ferrule guide
Graphpak 3D ferrule
Compression fitting
Open baffle liner
Slide the compression fitting onto the longer, straight end
6
of the new liner with the threads pointing toward the end
of the liner.
Place a Graphpak 3D ferrule on the same end of the liner
7
with the recessed graphite end towards the compression
fitting. Slide the ferrule so that about 2 mm of the liner is
exposed beyond the ferrule.
Slide the compression fitting up to meet the ferrule.
8
Finger- tighten the ferrule guide onto the compression
fitting.
Unscrew and remove the ferrule guide.
9
Slide the compression fitting off the other end of the
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liner. The ferrule should now be set with 1 mm of the
liner exposed. Check that the graphite within the ferrule
is flush with the top of the metal collar.
Maintaining Your GC