Replacing The Oven Fan - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Oven and Temperature Control

Replacing the oven fan

Before proceeding, turn off the oven and let it and any heated zones cool

down. Turn off the main power switch and unplug the power cord.

Remove the columns, column nuts and other hardware preventing access

Remove the four Torx T-20 screws securing the fan shroud to the

instrument and swing the left side of the shroud out towards you.

Figure 420-8

Removing the set screw on the oven fan shaft (inside oven)

Agilent 6890 Gas Chromatograph Service Manual

6890a 6890 plus