Cessna T182 1982 Pilot Operating Handbook page 158

CESSNA
SECTION 7
MODEL T182
AIRPLANE
&
SYSTEMS DESCRIPTIONS
FUEL QUANTITY DATA (U.S. GALLONS)
FUEL TANKS
FUEL
LEVEL
(QUANTITY EACH TANK)
TOTAL
FUEL
TOTAL
UNUSABLE
TOTAL
USABLE
ALL FLIGHT
CONDITIONS
STANDARD
FULL
(46)
92
4
88
REDUCED
(34.5)
69 4
65
Figure 7-7. Fuel Quantity Data
The overboard vents protrude from the bottom surfaces of the wings
behind the wing struts, slightly below the upper attach points of the struts.
The fuel filler caps are vacuum vented; the vents will open and allow air to
enter the fuel tanks in case the overboard vents become blocked.
Fuel quantity is measured by two float-type fuel quantity transmitters
(one in each fuel tank) and indicated by two electrically-operated fuel
quantity indicators on the right side of the instrument panel. The fuel
quantity indicators are calibrated in gallons (lower scale) and pounds
(upper scale). An empty tank is indicated by a red line and the letter E.
When an indicator shows an empty tank, approximately 2 gallons remain
in a tank as unusable fuel. The indicators cannot be relied upon for
accurate readings during skids, slips, or unusual flight attitudes. If both
indicator pointers should rapidly move to a zero reading, check the
cylinder head temperature and oil temperature gages for operation. If
these gages are not indicating, an electrical malfunction has occurred.
The auxiliary fuel pump switch is located on the left side of the switch
and control panel and is a rocker-type switch. It is labeled AUX FUEL
PUMP. When the pump is operating, it will maintain fuel pressure to the
carburetor. It should be used whenever the indicated fuel pressure falls
below 3.0 PSI, but is not required when gravity flow and/ or the engine ­
driven fuel pump can maintain indicated pressures above 3.0 PSI.
The fuel selector valve should be in the BOTH position for takeoff,
climb, descent, landing, and maneuvers that involve prolonged slips or
skids. Operation from either LEFT or RIGHT tank is reserved for level
cruising flight only.
21 August 1981
7-27