Oritron Dionex Ion Chromatography System ICS-2100 - Manual (Page 137)

5 • Service
Doc. 065291-01 3/09
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5.9 Replacing the Waste Valve or Priming Valve O-Ring
A damaged O-ring causes leakage around the base of the waste valve or
priming valve knob.
1. Close the eluent valve from the ICS-2100 Control panel in Chromeleon or
select Eluent Valve Closed on the touch screen PUMP page.
2. Turn off the main power switch, to ensure that you do not unintentionally start
the ICS-2100.
3. To remove the waste valve or priming valve from the pump head (see
Figure 5-16 ), turn the knob counterclockwise until it is loose, and then pull
the knob straight out of the cavity in the pump head.
Figure 5-16. Waste and Priming Valves
Waste Valve
Priming Valve