ActionStep
Unscrew the two white plastic screws located below each pump head. Pull
the plastic connectors to the sides to release the inlet manifold.
7
Unscrew the lower check valve using an adjustable wrench.8
Replace the lower check valve with a new one.9
Tighten the nut until fully finger-tight and then use the adjustable wrench
to tighten a further 180 degrees.
10
Refit the inlet manifold and reconnect the tubing to the pump head.11
ÄKTA avant User Manual 29035184 AE 351
7 Maintenance
7.8 Replacement procedures
7.8.8 Replace pump head check valves
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