FUEL
XFEED SELECTOR KNOB
LOW 1: Opens the crossfeed valve and automatically activates AC PUMP2, supplying fuel to both engines from the right wing tank.
OFF: Closes the crossfeed valve.
LOW 2: Opens the crossfeed valve and automatically activates AC PUMP 1, supplying fuel to both engines from the left wing tank.
Note: Setting AC PUMP 1 or 2 selector knob to any position different than AUTO overrides fuel crossfeed pumps command.
DC PUMP SELECTOR KNOB
OFF: Deactivates the DC fuel pump.
AUTO: Automatically operates the DC fuel pump according to the system’s logic.
ON: Activates the DC fuel pump.
AC PUMP SELECTOR KNOBS
OFF: Deactivates the associated AC fuel pump.
AUTO: Automatically operates the associated AC fuel pump according to the system’s logic.
ON: Activates the associated AC fuel pump.
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