Agilent Technologies InfinityLab LC Series User Manual page 187

8 Maintenance
Pump Head Maintenance (Tool Free)
3 Turn the pump head assembly upside down.
5 Remove the inlet valve and the outlet valve from the
primary pump head.
NOTE
Clean the valves by sonication, if appropriate. A good
cleaning solution is 50 % isopropanol in water.
7 Place the two pump heads in the pump head holder.
1260 Infinity II Flexible Pump User Manual
4 Remove the link plate by gently pulling it off the pump
head assembly.
The two pump chambers are now isolated.
6 Binary/High-Speed Pumps only: Remove the
high-pressure filter from the secondary pump head.
8 Remove the pump head screws from the back of the
pump heads.
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