Waters APGC, Operator'S Manual Supplement, Page: 71 / 78

B-3
6. Inspect the column end using an eyeglass.
Requirement:
Ensure that the cut end is perpendicular to the column,
even, and has no chips or rough edges, for a rough, ragged, or skewed
end can reduce performance. Otherwise, repeat step 5 .
7. Retract the capillary column so that no more than 1 mm of the column
tip extends from the source end of the heated transfer line (see page 1-8 ).
8. At the oven end of the heated transfer line, use the 4-mm wrench to grip
the flat indents on the line while carefully tightening the end nut with
the 1/4-inch wrench so that the column is held firmly but gently.
Fitting the capillary column to the heated transfer line:
Incorrect Incorrect
Correct
Flat indents
End nut