When

  • During regular maintenance

  • Impaired permeability of solvent line filter frit

  • Damage of solvent line filter

Parts and additional items required

  • As applicable

    • Filter frit

    • Solvent line filter (with filter holder, filter frit, and solvent line adapter)

  • Solvent suitable for your application

Parts affected

1234
Figure: Solvent line filter (left: when replacing only the filter frit; right: when replacing the solvent line filter)

No.

Description

1

Solvent line adapter

2

Filter holder, top part

3

Filter frit

4

Filter holder, bottom part

Preparations

  1. Unscrew the cap of the solvent reservoir and remove the cap together with the solvent line from the reservoir.

  2. Remove the filter holder (with adapter) from the solvent line.

Follow these steps

As necessary, follow the steps for replacing the filter frit or for replacing the filter.

Steps for Replacing the Frit in the Solvent Line Filter

  1. Open the filter holder and remove the filter frit.

  2. Assemble the solvent line filter, wearing appropriate clean gloves:

  1. Place the frit in a level position in the filter holder (bottom part).
  2. Screw the filter top firmly to the filter bottom.
  1. Slide the filter holder with the adapter onto the solvent line.

  2. Retighten the reservoir cap hand-tight. The retaining guide must remain in the hole in the reservoir cap. If it does not, press the retaining guide into the hole so that the tubing is kept in place in the cap.

  3. To remove any air from the solvent lines, purge the pump using the solvent of your application.

Steps for Replacing the Solvent Line Filter

  1. Assemble the solvent line filter, wearing appropriate clean gloves:

  1. Insert the solvent line adapter into the filter holder (top part).
  2. Turn the filter holder (top part) with adapter upside down and press onto a suitable surface so that the adapter is seated firmly in the filter holder.
  3. Place the frit in a level position in the filter holder (bottom part).
  4. Screw the filter top firmly to the filter bottom.
  1. Slide the filter holder with the adapter onto the solvent line.

  2. Retighten the reservoir cap hand-tight. The retaining guide must remain in the hole in the reservoir cap. If it does not, press the retaining guide into the hole so that the tubing is kept in place in the cap.

  3. Purge the pump using the solvent of your application.