Cessna 1971 Super Skymaster - Page 50

OIL DILUTION TABLE
TEMPERATURE
0
0
F.
-10
0
F.
-20
0
F.
DILUTION TIME ====
30seconds
1 minute 1 minute
30 seconds
FUEL ADDED
1 quart 2 quarts
3 quarts
Maximum sump capacity for take-off, 10 quarts.
Figure 7-1.
If the full dilution time was used, beginning with a full oil sump (10
quarts), subsequent starts and engine warm-up should be prolonged to
evaporate enough of the fuel to lower the oil sump level to 10 quarts prior
to take-off. Otherwise, the sumps may overflow when the airplane is
in a nose high attitude.
To avoid progressive dilution of the oil, flights of at least two hours I
duration should be made between dilution operations.
STATIC PRESSURE ALTERNATE SOURCE VALVE.
A control knob to the left side of the control pedestal, under the in-
strument panel, operates the static pressure alternate source valve. The
valve
provides continued operation of the airspeed, altimeter and vertical
speed indicators in the event that the static system ports or lines become
obstructed. If erroneous instrument readings are suspected, due to water
or ice in the static system ports or lines, the static pressure alternate
t
~,
"
I
>
~
.
_
source valve should be opened by pulling out the control knob, thus vent-
ing the static system into the left wing.
A
placard on the left side of the control pedestal lists the following
corrections to be used for indicated airspeed and altitude when the alter-
nate static source must be used.
ALTERNATE STATIC SOURCE CORRECTION
AIRSPEED
FLY 3 MPH FASTER THAN NORMAL.
ALTITUDE
CRUISE: FLY 270
FEET HIGHER THAN NORMAL.
APPROACH: FLY 100
FEET HIGHER THAN NORMAL.
; II ;
ICE DETECTOR LIGHT I
An ice detector light may be installed to facilitate the detection of
wing
ice at night or during reduced visibility.
The ice detector light system consists of a split rocker-type switch
labeled "WING DEICE LITE" located on the left switch and control panel,
and a
light positioned on the upper left side of the fuselage forward of the
wing to illuminate the leading edge of the wing. To operate the light,
place the right half of the split rocker-type switch (single rocker without
de-ice system) in the up (on) position.
'-5
J
7-4
1