2 Installing 7890/7820/6890/6850 GC Columns
5975/5977 Series MSD Operating Manual 39
11 Hand-tighten the nut. Ensure the position of the column does not change as
you tighten the nut. Do not over tighten the nut.
12 Tighten the nut in the clockwise direction. Continue to tighten until you feel
the ferrule grip the column.
13 Check the GC oven to ensure that the column does not touch the oven walls.
14 Install the tip seal and spring on the GC/MS interface. (See“To Install the
Interface Tip Seal” on page 44.) Do not use a tip seal or spring with an EI SS
or Inert source. The interface socket on these sources does not allow the tip
seal installation to fit. (See Figure 44 on page 142.)
Figure 7. Installing a capillary column in the GC/MS interface
Use care when placing the isolation tip on the GC/MS interface to avoid
damaging the column.
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