Maximum ITT during engine start is:
The engine oil system consists of pressure, scavenge, and breather systems with the oil tank being an integral part of the engine compressor inlet case. Oil is supplied to the engine bearings, bushings, reduction gears, accessory drives, torquemeter, and propeller governor. Oil is also used to:
The start sequence can be interrupted at any time by pressing the STARTER INTERRUPT switch on overhead panel. When pressed, the ground from the Starter Master Relay causing it to open and remove electrical power from the starter circuit.
When set to AUTO, ignition will automatically activate, regardless of the PCL position, when the ITT is less than _____ and the Ng is 10% or more, the green IGNITION annunciator in the engine section of the PFD will come on.
Ignition stops 10 seconds after the ITT is more than 500 deg.C and when the Ng is less than 10%.
The scavenge system in the propeller reduction gearbox incorporates a magnetic chip detector that detects foreign matter in the system and causes the 'Engine Chip' caution in the CAS window to come on.
The chip detector also acts as the propeller reduction gearbox oil drain. A second magnetic chip detector is installed in the accessory gearbox. It is also connected to the CAS 'Engine Chip' caution and operates in parallel to the reduction gearbox chip detector.
Aft of the idle detent is the ground operating range or beta mode.
The Nf governor limits the propeller speed to an underspeed condition to give the beta valve full authority in controlling the propeller pitch. The engine power and propeller pitch are directly controlled by the PCL. Initial PCL movement aft of the idle detent adjusts the propeller pitch while the gas generator remains at idle and can be used to control taxi speed. Further aft movement causes the propeller to move into the reverse range followed by an increase in engine power.
For improved engine starting with a cold engine (oil temperature below _____), the pilot will set the condition lever to the FLIGHT IDLE position for engine starting as soon as Ng is above 13%. GROUND IDLE will be selected when Ng is above 50%.
The MOR lever must be in the off position prior to engine start to prevent a:
If the CAS 'Engine Oil Level' comes on, the oil level is not adequate for safe engine operation. It is not recommended to start a flight with the oil level below the green range on the sight glass. Total oil capacity is _____ while usable oil quantity is 1.5 US gal (5.7 liters). The oil tank incorporates a drain plug.
When the POWER CONTROL lever (PCL) is at the idle detent, the gas generator is at idle and the propeller is at maximum pitch. A lifting action to raise the PCL over the detent is required to move the PCL into the ground operating range.
When the PCL is at the idle detent, the gas generator is at idle and the propeller is at minimum pitch.
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Ignition is provided by an ignition exciter and two spark igniter plugs. The ignition exciter is a sealed electronic unit mounted at the engine cowling and is operated by the aircraft 28 VDC system.
Ignition is controlled from the cockpit by the IGNITION switch, located in the ENGINE START section of the overhead panel. The switch has two positions, ON and AUTO. When set to ON, ignition will occur continuously and a green IGNITION annunciator in the engine section of the PFD will come on.
The GROUND IDLE position (G.I.) is for ground operation only. This setting ensures that the propeller speed remains above the prohibited range of _____ for ambient conditions up to a temperature of approximately 45 deg.C.
Oil temperature limits are _____ to 105 deg.C with limited periods of 10 minutes at 105 to 110 deg.C.
The torque limiter should assist the pilot during _____.
In most cases, it limits the maximum torque to below 44.3 psi. However, it is the pilot’s responsibility to respect all engine operating limitations including torque by reducing engine power.
Oil pressures below _____ are unsafe and require that either the engine be shut down or a landing be made as soon as possible using the minimum power required to sustain flight.
An Engine NG caution will be given on the CAS if the Ng falls below _____ , pushing the STARTER button will not engage the starter at Ng above 50%.
The fuel control unit is controlled by the POWER CONTROL and CONDITION levers during normal operations, and the MANUAL OVERRIDE lever during emergency operation.
Starting is provided by a combination starter/generator unit. The engagement time is limited to _____ for air starts.
At FLIGHT IDLE more fuel is provided during the start cycle to enhance engine acceleration to idle speed.
The breather system allows air from the engine bearing compartments and the propeller reduction and accessory gearboxes to be vented overboard into the right exhaust stub, through the centrifugal breather in the accessory gearbox.
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Fuel is delivered to the fuel/oil heat exchanger from the high-pressure engine driven pump.
Fuel is delivered to the fuel/oil heat exchanger from the low-pressure engine driven pump
Battery 1 provides the electrical power to the starter for starting the engine. Battery 2 provides electrical power to maintain the essential systems during engine start.
Battery 2 provides the electrical power to the starter for starting the engine. Battery 1 provides electrical power to maintain the essential systems during engine start.
POWER CONTROL lever (PCL) operation aft of the idle detent is permitted during transient time only when engine operation is controlled by the manual override lever.
POWER CONTROL lever (PCL) operation aft of the idle detent is not permitted when engine operation is controlled by the manual override lever.
On the ground with no forward speed it is not possible to recover low Ng with the MANUAL OVERRIDE lever (MOR).
The oil to fuel heat exchanger pre-heats the fuel to:
The MANUAL OVERRIDE lever (MOR) is located on the center console to the left of The POWER CONTROL lever (PCL). The MOR controls the engine power in case of: