Agilent Technologies 1100 Series, Service Manual, Page: 127 / 288

1100 Series Nano Pump Service Manual 115
Repairing the Pump 3
Exchanging the Purge Valve Frit or the Complete Manual Purge Valve
Exchanging the purge valve frit or the complete purge valve
1
Using a 1/4 inch or 4 mm wrench disconnect the pump outlet capillary at
the purge valve.
Frequency Frit
-
when plunger seals are exchanged or when contaminated or blocked
(pressure drop of > 10 bar across the frit at a flow rate of 2500 µ l/min of H
2
0
with purge valve opened)
Purge valve - if internally leaking
Tools required Wrench 1/4 inch
Wrench 4 mm (depending on pump outlet capillary)
Wrench 14 mm
Pair of tweezers or toothpick
Parts required PTFE Frit (pack of 5) 01018-22707
Purge valve G1311-60009
Figure 18 Exchanging the Purge Valve Frit
Purge valve
Pump outlet
capillary
Purge valve holder
Waste capillary