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3
Column Modules
UltiMetal ferrule
Internal nut
Figure 28.
14 Place the CFT union back into the hanger and insert the column end. Tighten finger-tight,
User Guide
•
Check the end of the column with a magnifier. The end of the column does not need to
be perfectly square, but cracks should not extend under the ferrule.
Proper technique for trimming the column in a CFT fitting
then use two wrenches to tighten an additional 10 to 15 ° (about one-half of a flat).
Column cutting wafe
45 degree angle when
cutting
Cut here
0.3 mm to 0.5 mm of column
extends past ferrule
43
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