108 Agilent 1290 Infinity II Flexible Pump User Manual
7 Maintenance
Pump Head Procedures
Disassemble the Pump Head Assembly
When If parts inside the pump head need to be replaced
Tools required p/n Description
G4220-20012 Torque wrench 2 – 25 Nm
G4220-20013 4 mm hex bit
G4220-20014 2.5 mm Hex Bit
G4220-20015 Adapter ¼ in square to hex
8710-0510 Wrench open 1/4 — 5/16 inch
Preparations Remove the pump head
Damaged pump head
Disassembling or reassembling the pump head with tools other than the ones
recommended can damage pump heads and significantly reduce their life time.
➔ Follow all instructions step by step.
➔ Use recommended tools like the pump head alignment tool and a torque wrench.
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