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SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
CESSNA
MODELT210M
equipped with a lock button in the end of the knob. The rich position is full
/
'
,.,
forward, and full aft is the idle cut-off position. For small adjustments, the
control may be moved forward by rotating the knob clockwise, and aft by
rotating the knob counterclockwise. For rapid or large adjustments, the
knob may be moved forward or aft by depressing the lock button in the end
of the
control,
and then positioning the control as desired.
ENGINE INSTRUMENTS
Engine operation is monitored by the following instruments: oil
pressure gage, oil temperature gage, cylinder head temperature gage,
tachometer, and manifold pressure/fuel flow indicator. An economy
mixture (EGT) indicator is also available.
The oil pressure gage, located on the upper right side of the instrument
panel, is operated by oil pressure. A direct pressure oil line from the engine
delivers oil at engine operating pressure to the oil pressure gage. Gage
markings indicate that minimum idling pressure is 10 PSI (red line)
,
the
normal operating range is 30 to 60 PSI
(green
arc),
and
maximum pressure
is 100 PSI (red line).
Oil temperature is indicated by a gage adjacent to the oil pressure
gage.
The gage is operated by an electrical-resistance
type
temperature
sensor which receives power from the airplane electrical system. Oil
temperature limitations
are
the normal operating range (green arc) which
is 38°C (100°F) to 116°C (240°F), and the maximum (red line) which is 116°C
(240°F).
The cylinder head temperature gage, adjacent to the oil temperature
gage, is operated by an electrical-resistance type temperature sensor on
the engine and is powered by the airplane electrical
system.
Temperature
limitations are the normal operating range (green arc) which is 93°C
(200°F) to 238°C ( 460°F) and the maximum (red line) which is 238°C ( 460°F).
The engine-driven mechanical tachometer is located on the lower right
side of the instrument panel. The instrument is calibrated in increments of
100 RPM and indicates both engine and propeller speed. An hour meter
below the center of the tachometer dial records elapsed engine time in
hours and
tenths.
Instrument markings include a normal operating range
(green arc) of 2200 to 2500 RPM, a five minute maximum power range
(yellow arc) of 2600 to 2700 RPM,
and
a maximum (red line) of 2700 RPM.
The manifold pressure gage is the left half of a dual-indicating
instrument mounted above the tachometer. The gage is direct reading and
indicates induction air manifold pressure in inches of
mercury.
It has a
normal operating range (green arc) of 15 to 30 inches of mercury, a five
minute maximum power range (yellow arc) of 35 to 36.5 inches of mercury,
7-20
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