Dionex ICS-900 - Liquid Leaks

4 • Troubleshooting
Doc. 065215-02 9/09 57
4.2 Liquid Leaks
• Leaking fitting
Locate the source of the leak. Tighten or, if necessary, replace the liquid line
connection (see Section 5.2
). For tightening requirements, refer to the
Installation of Dionex Liquid Line Fittings (Document No. 031432), provided
on the Dionex Reference Library CD-ROM (P/N 053891).
• Broken liquid line
Replace the line and fittings (see Section 5.2
).
• Blocked or improperly installed line
Make sure the lines are not crimped or otherwise blocked. Also, if the blocked
line is a waste line, make sure it is not elevated at any point after it exits the
ICS-900. If a line is blocked, replace it (see Section 5.2
).
• Loose pump check valve housing
Make sure the check valves are firmly seated in the pump head. If they are
not, tighten them carefully with an open-end wrench just until the leak stops.
• Damaged pump piston seal
1. Replace the piston seal (see Section 5.7
).
2. If the problem persists, replace the piston (see Section 5.8
).
• Pump head not tight
Carefully tighten the pump head mounting screws just until the leak stops.
DO NOT OVERTIGHTEN!
• Leaking pressure transducer
Make sure the liquid line connections into the pressure transducer are tight.
Refer to Installation of Dionex Liquid Line Fittings (Document No. 031432),
included on the Dionex Reference Library CD-ROM (P/N 053891), for
tightening requirements. Replace any damaged fittings.