To assemble the new fittings:
1. Insert the end of a tube into the hexagonal end of the compression screw.
2. Insert the tube into the larger end of the ferrule.
3. Insert the tube into the fitting body.
4. Rotate the compression screw, clockwise, into the fitting body until the screw is finger-tight.
5. Using a permanent marker, mark the compression screw at the 12 o’clock position.
6. Mark the fitting body at the 9 o’clock position.
7. Ensure that the tubing makes contact with the bottom of the fitting body, and use the 1/4-
inch open-end wrench to rotate the compression screw clockwise 3/4-turn until the two
marks line up.
2.5.1.2
1/4-28 flangeless fitting with ferrule
First use or re-installed
Compression screw
Ferrule
Tighten the fitting finger-tight.
2.5.1.3
1/4-28 flangeless fitting with 2-piece ferrule
First use or re-installed
August 8, 2016, 715005049 Rev. C
Page 31
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