3 • Operation and Maintenance
Doc. 031851-05 12/04 3-13
3.6 Maintenance
This section describes routine maintenance procedures for the ICS-90 that users
may perform. All other maintenance procedures must be performed by Dionex
personnel.
As Needed
• Make fresh eluent as needed.
• Regularly check the eluent reservoir to see if it needs to be refilled.
• Whenever the eluent reservoir is refilled, the regenerant reservoir should also
be emptied, rinsed, and refilled with regenerant.
Daily
• Check the ICS-90 component mounting panel (see Figure 2-3) for leaks or
spills. Wipe up spills. Isolate and repair leaks (see Section 4.2
). Rinse off any
dried eluent or regenerant with deionized water.
• Check the waste container daily and empty when needed.
Weekly
• Once a week, check gas and fluid lines for crimping or discoloration. Relocate
any pinched lines. Replace damaged lines.
• Check the junction between the pump head and the pump casting for evidence
of liquid leaks. Normal friction and wear may gradually result in small liquid
leaks around the piston seal. If unchecked, these leaks can gradually
contaminate the piston housing, causing the pump to operate poorly. If leaks
occur, replace the piston seals (see Section 5.6
).
Yearly
• Change the pump seals (see Section 5.6).
• Rebuild the injection valve (see Section 5.9).
• Replace the AS40 Automated Sampler tip and tubing. The ASM/AS40
Sample Tip Replacement Kit (P/N 040835) contains all of the components
required to replace the sampling tip and the tubing between the tip and the
injection valve. For instructions on how to replace the sampling tip, see the
AS40 Automated Sampler Operator’s Manual (Document No. 034970).
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