Follow the steps below to replace the two wash lines between the outlet port of the degasser located in the pump and the needle wash inlet ports of the selector valve of the autosampler.

When

Wash line is clogged or damaged

Parts and additional items required

  • Fresh needle wash liquid

  • Replacement wash lines

Preparations

  1. Prepare fresh needle wash liquid.

  1. Empty the needle wash system:

  1. Unscrew the caps of the needle wash reservoirs.
  2. Together with the cap, remove the wash lines (labeled W and S) from the reservoirs.
  3. Place the wash lines in a waste reservoir to empty them.

 

Follow these steps

  1. Remove the retaining guide from the wash lines.

  2. Disconnect the wash lines out of the selector valve of the autosampler.

  3. Disconnect the lines from the degasser outlet port.

  4. Connect the replacement wash lines to the degasser outlet ports.

  5. Connect the needle wash lines to the selector valve of the autosampler.

  6. Fill the needle wash reservoirs with fresh needle wash liquid and restart the needle wash system. See Filling the Needle Wash Reservoirs.