Agilent Technologies Agilent 7890 Series Maintenance Manual page 352

20
Swagelok Connections
352
Pencil line
Figure 12 Marking the fitting
For 1/8- inch Swagelok fittings, use a pair of 7/16- inch
8
wrenches to tighten the fitting 3/4 of a turn
For 1/4- inch fittings, use a pair of 9/16- inch wrenches
to tighten them 1- 1/4 turn
Figure 13 Final tightening
Remove the plug from the fitting. To connect the tubing,
9
with nut and ferrules, to another fitting, finger- tighten the
nut, then use a wrench to tighten it 3/4 (1/8- inch fittings)
or 1- 1/4 (1/4- inch fittings) of a turn.
10 Both correctly- and incorrectly- swaged connections are
shown in Figure 14. Note that the end of the tubing in a
correctly- swaged fitting is not crushed and does not
interfere with the action of the ferrules.
(Figure
(Figure 13).
Maintaining Your GC
13).