Agilent Technologies 1290 Infinity User Manual page 173

Maintenance Step
Replace the DLW Syringe plunger.
Replace the DLW Syringe Needle.
Observe the correct placement of the Teflon
seal.
Check all connections for tightness.
Replace the DLW Holding Loop.
Check the spring loaded Needle Holder
Assembly for functionality. The spring
compression in particular must be checked.
Check the functionality of the DLW
Actuator/Solenoid.
1
There are no operator-serviceable or replaceable parts inside the power supply(ies) or the
N O T E
LC Injector HTC/HTS System. In case of any failure, contact a representative of Agilent
Technologies.
Agilent 1290 Infinity LC Injectors HTC/HTS User Manual
1
Dedicated to the DLW Option
LC Injector HTC/HTS Description and Installation
Maintaining the LC Injector HTC/HTS System
Interval
1 Syringe Plunger for a gas tight syringe (polymer
tip) has to be replaced on a regular basis. The
interval is highly dependent on the application,
throughput, quality of sample solution (particles,
etc.) washing solvent.
It is advisable to check the tightness of the
plunger on a regular basis to gain
experience with the application.
Only as needed (e.g. if bent)
1
1 Weekly or as needed.
1 Recommended for change once a year as a
preventative maintenance.
Weekly or as needed.
1
Weekly or as needed.
Recommended for change once a year as a
preventative maintenance.
N O T E
3
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