Propeller Control Lever; Fuel Condition Lever; Quadrant Friction Lock - Textron Cessna Grand Caravan Ex 208B Pilot's Operating Handbook And Faa Approved Airplane Flight Manual

SECTION 7 CESSNA
AIRPLANE AND SYSTEMS DESCRIPTION MODEL 208B 867 SHP
GARMIN G1000
ENGINE CONTROLS
(Continued)

PROPELLER CONTROL LEVER

The PROP RPM lever is connected through linkage to the propeller
governor mounted on top of the front section of the engine, and
controls propeller governor settings from the maximum RPM position to
full feather. The PROP RPM lever has MAX, MIN, and FEATHER
positions. The MAX position is used when high RPM is desired and
governs the propeller speed at 1900 RPM. PROP RPM lever settings
from the MAX position to MIN permit the pilot to select the desired
engine RPM for cruise. The FEATHER position is used during normal
engine shutdown to stop rotation of the power turbine and front section
of the engine. Since lubrication is not available after the gas generator
section of the engine has shut down, rotation of the forward section of
the engine is not desirable. Also, feathering the propeller when the
engine is shut down minimizes propeller windmilling during windy
conditions. A mechanical stop in the lever slot requires that the PROP
RPM lever be moved to the left to clear the stop before it can be moved
into or out of the FEATHER position.

FUEL CONDITION LEVER

The FUEL CONDITION lever is connected through linkage to a
combined lever and stop mechanism on the fuel control unit. The lever
and stop also function as an idle stop for the fuel control unit rod. The
FUEL CONDITION lever controls the minimum RPM of the gas
generator turbine (N ) when the POWER lever is in the IDLE position.
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The FUEL CONDITION lever has CUTOFF, LOW IDLE, and HIGH
IDLE positions. The CUTOFF position shuts off all fuel to the engine
fuel nozzles. LOW IDLE positions the control rod stop to provide an
RPM of 55% N . HIGH IDLE positions the control rod stop to provide an
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RPM of 65% N .
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QUADRANT FRICTION LOCK

A quadrant friction lock, located on the right side of the pedestal, is
provided to minimize creeping of the engine controls once they have
been set. The lock is a knurled knob which increases friction on the
engine controls when rotated clockwise.
7-52 208BPHCUS-00
U.S.