4 Maintaining Capillary Columns
Preparing the column installation to the CFT fitting
Maintaining Your GC 41
Figure 9. Tighten the internal nut
7 Using the 1/4-inch open-ended wrench, turn the internal nut an additional 15 to 20 degrees
clockwise to assure the ferrule is properly swaged onto the column. See Figure 10.
Figure 10. Ferrule swaged to column and internal nut
Table 6 Degrees to tighten the internal nut for proper swaging
Ferrule part number Degrees to tighten internal nut
G3188-27501 50 – 100 degrees
G3188-27502 30 – 70 degrees
G3188-27503 20 – 50 degrees
G3188-27504 60 degrees
G3188-27505 40 – 90 degrees
G3188-27506 20 – 50 degrees
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