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D.2 Reassembly Instructions
Swagelok tube fittings may be disassembled and reassembled many times.
Warning! Always depressurize the system before disassembling a Swagelok tube fitting.
1)
Prior to disassembly, mark the tube at the back of the nut, then make a line along the nut and
fitting body flats.
These marks will be used during reassembly to ensure the nut is returned to
its current position.
Figure 12 - Marks for Reassembly
2)
Disassemble the fitting.
3)
Inspect the ferrules for damage and replace if necessary.
If the ferrules are replaced the
connector should be treated as a new assembly. Refer to the section above for
installation instructions.
4)
Reassemble the fitting by inserting the tube with preswaged ferrules into the fitting until the
front ferrule seats against the fitting body.
Figure 13 - Ferrules Seated Against Fitting Body
5)
While holding the fitting body steady, rotate the nut with a wrench to the previous position as
indicated by the marks on the tube and the connector. At this point, there will be a significant
increase in resistance.
6)
Tighten the nut slightly.
Figure 14 - Tighten Nut Slightly
