Airplane Description DA 42 AFM
Page 7 - 40 Rev. 8 15-Dec-2017 Doc. No. 7.01.05-E
Fuel Selector Valves
For each engine one fuel selector valve is provided. The control levers for the fuel selector
valves are situated on the center console behind the power levers. The positions are ON,
CROSSFEED and OFF. During normal operation each engine takes the fuel from the
tank on the same side as the engine. When CROSSFEED is selected, the engine will
draw fuel from the tank on the opposite side in order to extend range and keep fuel weight
balanced during single engine operation. With the fuel selector valve both the feeding
and the return line are switched.
The desired position is reached by pulling the lever back. To reach the OFF position a
safety guard must be twisted. This is to ensure that this selection is not made
unintentionally.
NOTE
If one engine is inoperative the fuel selector valve for this
engine must be in the OFF position.
CAUTION
Do not operate with both fuel selector valves in CROSSFEED
position. Do not take-off with a fuel selector valve in
CROSSFEED position.
CAUTION
Do not shut down an engine with the fuel selector valve. The
high pressure fuel pump can otherwise be damaged.
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