My initial spoken reaction can't be printed here, but I ran through the emergency procedures: mixture full rich, prop to high rpm, full throttle, auxiliary fuel pump
Inside, the only difference that shows immediately is that the high side of the auxiliary fuel pump
switch is no longer spring-loaded to off.
This activates the auxiliary fuel pump
and transfers fuel from the external fuel supply to the generator fuel tank.
* What is the procedure to follow concerning the use of the auxiliary fuel pump
? Is it to be on for takeoff, landing or only in an emergency?
If you're not using the auxiliary fuel pump
on your 100-kW generator, make sure the auxiliary fuel switch on the electronic modular control panel is switched to OFF.
The electrically powered auxiliary fuel pump
on a fuel-injected engine can pull double duty as part of a priming system: Momentarily push a button or flick a switch and the pump primes all cylinders for you.
The pilot reported that, at about 300 feet agl, the engine "quit suddenly with no surging or other warning signs." He selected the auxiliary fuel pump
to the high position and switched fuel tanks.
After activating the auxiliary fuel pump
, he was able to restart the engine but only partial power was restored.
The auxiliary fuel pump
switch was in the off position.