17 of 20
Jun 2001
Mainframe
Agilent 6890 Gas Chromatograph Service Manual
Oven and Temperature Control 420
Replacing the oven flap motor
Replacing the oven flap motor
The oven flap motor regulates air flow out of the oven.
WARNING 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.
1. Remove the left side cover and the rear covers to the instrument.
2. On the left side of the GC (when facing its front), disconnect the oven
flap motor wiring harness from the main wiring harness.
3. Loosen the three Torx T-20 screws securing the flapper bracket to the
instrument and lift it and the motor up and off the instrument.
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