146 Agilent InfinityLab LC Series 1260 Infinity II Isocratic- and Quaternary Pumps User Manual
8
Maintenance
Exchange the Purge Valve Frit or the Purge Valve
Exchange the Purge Valve Frit or the Purge Valve
For bio-inert modules use bio-inert parts only!
When • Frit – when piston seals are exchanged or when contaminated or blocked (pressure drop of
> 10 bar across the frit at a flow rate of 5 mL/min of water with purge valve opened)
• Purge valve – if internally leaking
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
8710-1924 Open-end wrench 14 mm
Pair of tweezers
OR Toothpick
Parts required # p/n Description
1 G7111-60061 Purge valve
for G7110B, G7111A, and G7111B
1 G5611-60064 Purge valve
for G5654A (Bio-inert)
1 01018-22707 PTFE frits (pack of 5)
1 5067-4728 Seal cap (OPTIONAL)
Preparations • Switch off the pump at the main power switch.
• Open the doors of the module.
• Use an optional solvent shutoff valve or lift up solvent filters in solvent reservoirs for avoiding
leakages.
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