When

Defective passive pre-heater

Parts required

Passive pre-heater

Tools required

Screwdriver, Torx T10

Follow these steps

CAUTION

Hot surfaces

The column compartment and pre-heater may be hot. Touching hot parts might cause burns. Allow the column compartment and the pre-heater to cool down before starting the service procedure.

  1. Disconnect the outlet capillary of the passive pre-heater from the column inlet.

  2. Disconnect the inlet capillary of the passive pre-heater from the autosampler or a column switching valve.

  3. With the screwdriver, loosen the two screws and washers on the passive pre-heater and remove the passive pre-heater.

  4. Mount the new passive pre-heater in the column chamber. See Installing the Passive Pre-Heater.