FORWARD - emergency brake not engaged
PARK (detent)
parking brake set if parking brake hydraulic pressure is correct
PARKING BRAKE caution light comes on
minimum 500 psi parking brake pressure is required to ensure adequate park brake pressure before engine start
hand pump located in right main wheel well can be used to increase park brake system pressure
alternatively, if an AC power supply is available, park brake system pressure can be increased by running the SPU and the PTU
OFF - pull lever aft, then squeeze trigger to release. Move lever forward to OFF position ON - pull lever aft until trigger locks into place. Locks only the ailerons
The two power levers marked 1 and 2, control engine power in the forward power range and propeller speed and propeller blade angle in the idle through reverse Beta range. The power lever system is used to initiate power demand through the Full Authority Digital Electronic Control (FADEC) to meter fuel to the engine in the forward and reverse ranges. The power lever system also initiates control signals to the Propeller Electronic Control (PEC) to control propeller blade angles in the beta range. Power Levers Select: • Power for Flight • Flight Idle (FLT IDLE) • DISC • Reverse (MAX REV) The FADEC receives the power lever position signal by means of a dual channel RVDT installed in each lever. Discrete positional signals are also transmitted from microswitches mounted on the power lever quadrant to the PEC. Power lever movement between FLIGHT IDLE and RATING results in the FADEC modulating the power proportionally between flight idle power and the selected rated power. NOTE: A Beta warning horn will sound if the gate is raised in flight. Further power lever movement aft moves the blades into reverse until the power levers reach MAX REV. Between DISC and MAX REV, fuel flow and power output is increased.
Two condition levers to the right of the power levers, marked 1 and 2 are used to set: • Maximum Propeller RPM (MAX) • Intermediate Propeller RPM (900) • Minimum Propeller RPM (MIN) • Propeller Feather & Fuel On (Start & Feather) • Engine Ratings • Engine Shutdown (FUEL OFF) The PEC receives the condition levers position signal by means of a dual channel RVDT installed in each lever. Two discrete shutdown signals are also transmitted from microswitches mounted on the condition lever quadrant to the FADEC While in constant speed range, three discrete governing speeds can be selected: 1020 RPM, 900 RPM and 850 RPM. Each of the selected speeds also sets a default engine rating: NTOP at 1020, MCL at 900 and MCR at 850. On the ground with power levers at FLT IDLE, and a CLA between MIN and MAX inclusive, the propeller speed mantained by the FADEC at 660 RPM. This is known as prop underspeed governing. In the START & FEATHER position the propeller is feathered. Moving the lever to FUEL OFF closes microswitches connected to the FADEC and results in the FADEC commanding an engine shut down, by cutting off the fuel. Lift gates prevent unintentional movement of the lever from MIN/850 to START & FEATHER and from START & FEATHER to FUEL OFF.
