Agilent 1290 Infinity II Flexible Pump User Manual 93
Maintenance
7
Replace the Outlet Valve
Replace the Outlet Valve
When If Outlet valve is defective.
Tools required p/n Description
Wrench, 14 mm
G4220-20012 Torque wrench 2 – 25 Nm
G4220-20041 Bit Torx 10x25 mm
Parts required p/n Description
G4220-60028 Outlet valve
(primary pump head)
G4220-20020 Internal gold seal for Outlet Valve
Preparations • Switch off pump at the main power switch
• Open the doors
• Use an optional solvent shutoff valve or lift up solvent filters inside solvent bottles for avoiding
leakages
1 Remove the cap from the outlet valve. 2 Open the 2.5 mm hex screw at the top of the primary
pump head, which fixes the connection capillary of the
heat exchanger (1) and remove it (2). Then lift up the
capillary and remove it from the primary pump head (3).
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