3
Column Modules
User Guide
41
NOTE
on
for additional techniques to swage UltiMetal ferrules to a column.
10
Using two 1/4-inch open end wrenches, begin to swage the UltiMetal ferrule onto the
column.
•
Alternately, use a 1/4-inch wrench on the CFT union and a 6-mm wrench for the internal
nut.
a
Find your ferrule type in
and note the range of degrees to tighten the internal
nut.
b
Tighten the internal nut clockwise to the lower end of your ferrule’s range.
c
Check if the ferrule is gripping the column. If yes, stop. If not, continue to tighten the
internal nut in small 5- to 15-degree increments. Check after each increment to see if
the ferrule is gripping the column. To check it, lift the union from the bracket. Stop as
soon as gripping occurs (see
11
After tightening, lift the union from the bracket.
NOTE
If the system fails to hold pressure on the initial leak test after installing a column module,
check this connection first.
