Agilent Technologies 1290 infinity - Replacing the Outlet Valve

1290 Infinity Quaternary Pump User Manual 155
Maintenance
9
Replacing the Outlet Valve
Replacing the Outlet Valve
When If Outlet valve is defective.
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
8710-2603 Spanner-double open ended 12X14 mm Chrome
5067-5688 Torque wrench 1 – 25 Nm with 14 mm wrench
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
• Remove the front cover
• Use an optional solvent shutoff valve or lift up solvent filters inside solvent bottles for avoiding
leakages