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.