Agilent InfinityLab LC Series Vialsamplers User Manual 245
8Maintenance
Exchange the Rotor Seal
Exchange the Rotor Seal
When
• Injection volume reproducibility problems are observed.
• Leaks or blockages are observed.
• The limit for the rotor seal EMF counter is exceeded.
• The rotor seal needs to be replaced as part of the yearly maintenance.
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
8710-2394 Hex key 9/64 inch 15 cm long T-handle
Cleaning tissue and appropriate solvent like isopropanol or methanol
Parts required # p/n Description
1 5068-0007 Rotor Seal, Vespel, 1300 bar
for 1290 Infinity II Injection Valve
OR 1 0101-1416 Rotor Seal, PEEK, 600/800 bar
for 1260 Infinity Injection Valve
Preparations
• Finish any pending acquisition job.
• Stop the flow at the pump and remove the solvent lines from the eluent bottles to avoid spilling
solvent.
• Close the shutoff valves at the pump if available.
Reduced life time of the injection valve
Component cleanliness is crucial for the life time of the injection valve.
Replace the rotor seal in a clean environment.
Removing the stator head
The stator face is held in place by the stator head. When you remove the stator
head, the stator face can fall out of the valve.
Carefully handle the valve to prevent damage to the stator face.
Carefully handle the stator face during sonication.
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