Cessna 182S Skylane Information Manual page 189

SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTION
CESSNA
MODEL 182S
The
pedestal
is
labeled
OPEN, COWL FLAPS,
CLOSED.
Before
tions
require them
to
be
adjusted
to
keep the cylinder head
tem-
perature at
approximately
two-thirds of
the
normal operating
range
(green
arc).
During extended let-downs,
it
may
be
necessary
to
lcompletely close
the
cowl flaps
by
pushing
the cowl flap
control
down to the CLOSED position.
A
winterization kit
is available for the airplane. Details of this
kit
are presented
in
Section 9, Supplements.
PROPELLER
I The
airplane
has
an
all-metal, three-bladed,
constant-speed,
lgovernor-regulated propeller.
A
two-bladed propeller
is
also
available.
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 PROPELLER, 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.
7-24
Nov
15/00