Cessna 310 1975 Owner's Manual page 155

SUPPLEMENTAL
AIRPLANE FLIGHT MANUAL
AUXILIARY FUEL PUMP
SWITCHING SYSTEM
SECTION 4
NORMAL PROCEDURES
BEFORE TAKEOFF
Auxiliary Fuel Pumps - LOW.
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TAKEOFF, CLIMB OR LOW ALTITUDE
Auxiliary Fuel Pumps - OFF (LOW if necessary to suppress vapor).
CRUISE {Above 12,000 Feet)
Auxiliary Fuel Pumps - LOW for 5 minutes after leveling off to suppress
vapor tendencies.
DESCENT
Auxiliary Fuel Pumps - LOW.
BEFORE LANDING
Auxiliary Fuel Pumps - LOW.
AFTER LANDING
Auxiliary Fuel Pumps - OFF (LOW if necessary to suppress vapor).
PRACTICE SINGLE ENGINE PROCEDURES
Auxiliary Fuel Pumps - OFF.
SWITCHING FUEL TANKS
Auxiliary Fuel Pumps - LOW.
Original Issue
5