1290 Infinity Quaternary Pump User Manual 191
Maintenance
9
Replacing Parts of the Inline Filter
Replacing Parts of the Inline Filter
Tools required p/n Description
8710-0510 Wrench open 1/4 — 5/16 inch
Parts required p/n Description
5067-5407 In-Line Filter Assembly for 1290 Infinity Quaternary Pump
5067-4748 Capillary ST, 0.17 mm x 90 mm
Multi Purpose Valve to inline filter
5023-0271 Frit 0.3 µm for inline filter, 5/pk
Stuck Capillary in Multi Purpose Valve
Shortcutting the inline filter by directly connecting its right capillary to valve port 5 can
damage the Multi Purpose Valve.
The size/position of this capillary in its fitting is incompatible, so it may get stuck
irreversibly to the valve.
➔ Do not shortcut the filter by directly connecting its right capillary to valve port 5 in
case the inline filter cannot or shall not be used.
The inline filter can be cleaned using the back-flush function in the user interface of your
Agilent instrument control software.
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