Propeller; Fuel System - Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual

CESSNA
MODEL 182Q
SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
right side of the control pedestal. The pedestal is labeled OPEN, COWL
FLAPS, CLOSED. Before starting the engine, takeoff and high power
operation, the cowl flap lever should be placed in the OPEN position for
maximum cooling. This is accomplished by moving the lever to the right to
clear a detent, thEm moving the lever up to the OPEN position. Any time the
lever is repositioned, it must first be moved to the right. While in cruise
flight, cowl flaps should be adjusted to keep the cylinder head temperature
at approximately two-thirds of the normal operating range (green arc).
During extended let-downs, it may be necessary to completely close the
cowl flaps by pushing the cowl flap lever down to the CLOSED position.
A winterization kit is available for the airplane. Details of this kit are
presented in Section 9, Supplements.
PROPELLER
The airplane has an all-metal, two-bladed, constant-speed, governor-
regulated propeller. A setting introduced into the governor with the
propeller control establishes the propeller speed, and thus the engine
speed to -be maintained. The governor then controls flow of engine oil,
boosted to high pressure by the governing pump, to or from a piston in the
propeller hub. Oil pressure acting on the piston twists the blades toward
high pitch (low RPM). When oil pressure to the piston in the propeller hub
is relieved, centrifugal force, assisted by an internal spring, twists the
blades toward low pitch (high RPM).
A control knob on the center area of the switch and control panel is
used to set the propeller and control engine RPM as desired for various
flight conditions. The knob is labeled PROP PITCH, PUSH INCR RPM.
When the control knob is pushed in, blade pitch will decrease, giving a
higher RPM. When the control knob is pulled out, the blade pitch increases,
thereby decreaSing RPM. The propeller control knob is equipped with a
vernier feature which allows slow or fine RPM adjustments by rotating the
knob clockwise to increase RPM, and counterclockwise to decrease it. To
make rapid or large adjustments, depress the button on the end of the
control knob and reposition the control as desired.
FUEL SYSTEM
The airplane fuel system (see figure 7-5) consists of two vented
integral fuel tanks (one in each wing), a four-position selector valve, fuel
strainer. manual primer and carburetor. Refer to figure 7-6 for fuel
quantity data for the system_
1 October 1979
7-21