8Maintenance
Replace Parts of the Inline Filter
1260 Infinity II Flexible Pump User Manual 224
Replace Parts of the Inline Filter
Tools required p/n Description
8710-0510 Open-end wrench 1/4 — 5/16 inch
Parts required p/n Description
5023-0271 Frit 0.3 µm for inline filter, 5/pk
5230-0022 Frit 0.3 µm for Inline Filter Bio-Compatible
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.
 Use Capillary ST 0.17 mm x 120 mm, SLV/SV (5067-5416) or Capillary
MP35N 0.17 mm x 120 mm SI/SX (5500-1284) instead.
The inline filter can be cleaned using the back-flush function in the user interface
of your Agilent instrument control software.
Only use the back-flush option, if an inline filter is installed.
1 Remove the capillaries from the Multi Purpose Valve to
the inline filter.
2 Remove the inline filter from the clamp attached to the
Multi Purpose Valve.
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