• To prevent band spreading, ensure that the tubing is fully bottomed in the fitting
before tightening the compression screw.
• For easier accessibility, use long compression screws to attach tubes to the
injector and vent valve.
• Perform the solvent manager leak test whenever you replace or loosen fittings
during maintenance (see the console online Help).
• Whenever you loosen fittings during maintenance, examine for cracks, stripped
threads, and deformations.
• Do not reuse stainless steel fittings more than six times.
2.5.1.1 Long 1/4-28 fitting with flangeless ferrule and stainless steel lock
ring installed on 1/8-inch OD tubing
First use or re-installed
Compression screw
Lock ring
Ferrule
End of lock ring with larger inside diameter (ID)
Tighten the fitting finger-tight.
June 12, 2015, 715004747 Rev. A
Page 23
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