Fuel Selector Valve Handles; Auxiliary Fuel Pump Switches - Cessna 310 1975 Owner's Manual

tive landing light circuit breaker. When the right-hand
landing light is not installed, a circuit breaker is instal-
led to protect the right-hand transfer pump. During preflight
inspection these pumps can be checked for operation by listen--
ing for a pulsing sound emanating from the aft tip tank
fairings with the battery switch in the ON position.
FUEL SELECTOR VALVE HANDLES
The fuel selector valve placards are marked LEFT ENGINE
OFF, LEFT MAIN and RIGHT MAIN for the left engine selector,
and RIGHT ENGINE OFF, RIGHT MAIN and LEFT MAIN for the right
engine selector. The cross-feed position of each selector
valve is the one marked for the opposite main tank.
The fuel selector valve handles form the pointers for
the selectors. The ends of the handles are arrow-shaped and
point to the position on the selector placard which corres-
ponds to the valve position.
NOTE
eThe fuel selector valve handles should be
turned to LEFT MAIN for the left engine and
RIGHT MAIN for the right engine, during
takeoff, landing and all emergency opera-
tions.
ewhen fuel selector valve handles are changed
from one position to another, the auxiliary
fuel pumps should be switched to LOW, the
mixture should be in FULL RICH and the pilot
should feel for the detent to insure that
fuel selector valve
is
properly positioned.
AUXILIARY FUEL PUMP SWITCHES
The LOW position
run~
the auxiliary fuel pumps at low
speed, providing 36 pounds per hour fuel flow for purging.
The ON position runs the auxiliary fuel pumps at low speed,
as long as the engine-driven pumps are functioning. With an
2-20