Agilent 1290 Infinity Binary Pump User Manual 131
Maintenance
9
Releasing a Stuck Inlet Valve
Releasing a Stuck Inlet Valve
When If inlet valve is stuck, or if pump is not generating pressure after being turned off for an extended
period of time.
Before the system is turned off for an extended period of time, it should be flushed with at
least 10 % IPA to prevent inlet valves from getting stuck.
1
Remove the capillary connection from the outlet of the
secondary pump head.
2 Unscrew the tubing at the inlet valve.