1290 Infinity Quaternary Pump User Manual 153
Maintenance
9
Replacing the Inlet Valve
Replacing the Inlet Valve
When If Inlet valve is defective.
Tools required p/n Description
Wrench, 14 mm
5067-5688 Torque wrench 1 â 25 Nm with 14 mm wrench
Parts required p/n Description
G4204-60022 Inlet Valve Quaternary Pump/Flexible Pump
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
⢠Remove the inlet weaver, see âReplacing the Inlet Weaverâ on page 151
1
With a 14 mm wrench, unscrew the inlet valve and
remove it.
2
Install the new inlet valve and tighten it using a torque
wrench with a 14 mm bit set to 10 Nm.
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