Dionex ASE 150, Operator'S Manual

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Doc. 065207-02 9/08
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5 • Service
This chapter describes ASE 150 Accelerated Solvent Extractor service and repair
procedures that users may perform. All procedures not included here, including
electronics-related repair procedures, must be performed by Dionex personnel.
For assistance, contact Dionex Technical Support. In the U.S., call 1-800-346-
6390. Outside the U.S., call the nearest Dionex office.
Before replacing any part, refer to the troubleshooting information in Chapter 4 to
correctly identify the cause of the problem.
5.1 Replacing Tubing and Fittings
Use a 1/4-inch open-end wrench (P/N 049452) to tighten any leaking fittings. Do
not overtighten!
If tightening a fitting does not stop a leak, the tubing and fitting assembly must be
replaced. Contact Dionex for assistance.
5.2 Replacing the Cell End Cap Seal
A worn PEEK seal is deeply grooved and will fail to form a tight seal between the
cell cap and body during a run, causing leaks.
1. Unscrew the cell end cap from the cell body (see Figure 5-1 ).
Substituting non-Dionex parts (extraction cells, extraction cell
components, valves, etc.) may impair the performance of the ASE 150,
thereby voiding the product warranty. Refer to the warranty statement
in the Dionex Terms and Conditions for more information.
Wear safety glasses when removing the old snap ring from the cell
end cap or installing a new snap ring.
Le port de lunettes de sécurité est requis lors du changement de
l’anneau de serrage sur le bouchon des cellules d’extraction.