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3
Column Modules
See
NOTE
10 Using two 1/4-inch open end wrenches, begin to swage the UltiMetal ferrule onto the
11 After tightening, lift the union from the bracket.
If the system fails to hold pressure on the initial leak test after installing a column module,
NOTE
check this connection first.
User Guide
step 3
on
page 25
for additional techniques to swage UltiMetal ferrules to a column.
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
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
Table 4
and note the range of degrees to tighten the internal
Figure
13).
41
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