Engine Controls; Engine Instruments - Cessna TR182 1979 Pilot Operating Handbook

CESSNA
MODELTR182
SECTION 7
AIRPLANE
&
SYSTEMS DESCRIPTIONS
interconnected with the induction air, carburetion, and exhaust systems on
the engine.
ENGINE CONTROLS
Engine manifold pressure is controlled by a throttle located in the
center area of the switch and control panel. The throttle linkage is
interconnected to the carburetor throttle valve and the turbocharger waste
gate. The throttle is closed in the full aft position. The initial1/2offorward
travel fully opens the carburetor throttle valve, and the final 1/2 offorward
travel closes the turbocharger waste gate valve and simultaneously
maintains the carburetor throttle valve in the full open position. A friction
lock, which is a round knurled disc located at the base of the throttle, is
operated by rotating the disc clockwise to increase friction or counter-
clockwise to decrease it. A cam on the throttle linkage is designed to
mechanically actuate a microswitch electrically connected to the landing
gear warning system. The switch will cause a warning tone to sound
anytime the throttle is retarded with the landing gear retracted, the master
switch turned on, and less than approximately 12inches of manifold
pressure.
The turbocharger has the capability of producing manifold pressures
in excess of 31 inches Hg. (red line). Therefore, in most cases, full waste
gate closed (full throttle) will not be necessary to maintain maximum
allowable manifold pressure. Close attention must be paid to manifold
pressures during high-power operations, especially during cold-day
conditions at low altitudes to prevent overboost of the engine.
The mixture control, mounted near the propeller control, is a red knob
with raised paints around the
oircumrerence
and is equipped with a look
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, manifold pressure gage, fuel pressure gage, economy mixture
(EGT) indicator, and carburetor air temperature gage.
The oil pressure gage, located on the right side of the instrument panel,
1 October 1978
7-19