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Engine Controls AIRCRAFT DA 40 Series AMM
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% Face Plate
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% Rear Shield Guide
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% Attaching Screws
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% % Front Shield Guide Throttle Attaching Screws
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% Bottom Cover Plate
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% Friction Lock Knob
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Attaching Screws
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Top Cover Plate
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Throttle
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% Figure 2: Engine Power Lever Installation % %
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% C. Power Lever
% Figure 2 shows the engine power lever installation. The power lever is a large ‘T’ -shaped lever. % It is located in the center console. The power lever has a friction lock. The lock holds the power % lever in the set position. A bar below the ‘T’ lets you set or release the friction. A button on top of % the bar lets you release the friction. The power lever assembles as a unit to the bottom cover plate % of the center console.
% The power lever has two separate and independent electrical systems. One system provides % signals to the ECU A. The other system provides signals to the ECU B. Either system can control % the engine.
% The lever operates electrical transducers that give signals in proportion to the power lever position. % The signals are used by the engine control system to set the power output. The control system also % sets the propeller constant speed unit to give best RPM for the power setting. Refer to Section 61-% 21 for more data on the propeller control function.
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AMM
% Each ECU gets data about the engine performance from the following sensors mounted on the % engine: %
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% D. Sensors
Sensor Location
Crankshaft 1. Front, right of the crankcase.
Crankshaft 2. Front, left of the crankcase.
Camshaft 1. Front between camshafts.
Camshaft 2. Aft between camshafts.
Coolant temperature. Rear of the thermostat valve.
Oil temperature. On the connection block for the oil cooler hoses.
Oil pressure. Behind the oil filter.
Manifold air temperature. On the intercooler outlet pipe.
Manifold air pressure. On the intercooler outlet pipe.
Fuel rail pressure. At the front of the fuel rail.
Gearbox temperature. At the top left of the front bearing of the reduction gear.
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Engine Controls
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% Trouble-Shooting % 1. General
% The table below lists the defects you could have with the engine control system. If you have the % trouble detailed in the Trouble column read across to the Possible Cause column. Then do the repair % given in the Repair column.
% For all other engine control trouble, refer to the engine manufacturer.
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Trouble Possible Cause Repair
ECU caution light comes ON. ECU defective. Read engine event log (refer to Section 72-01). Refer to the engine manufacturer.
Engine does not respond correctly to power lever movement. Run Diagnostic routine in ECU Operator software (refer to Section 72-01). Refer to the engine manufacturer.
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