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Detail Steps/Work Items Key Items/References
(7) Read the engine oil contents. Add oil if necessary. Refer to Section 12-10.
7. Engine Starting
See the Lycoming Operator's Manual for operating limits.
Detail Steps/Work Items Key Items/References
(1) Enter the cockpit.
(2) Set the parking brake to ON.
(3) Make sure that the fuel selector/shut-off valve is set to LEFT or RIGHT.
(4) Set the fuel selector valve as required.
(5) Make sure that the passenger door is closed and locked. Close and lock the canopy.
(6) Make sure that: S The throttle lever is free to move. S The mixture lever is free to move. S The propeller control lever is free to move.
(7) Set the ALT/BAT switch to ON.
(8) Make sure that the engine indicator display panel reads correctly.
(9) Do a test of the annunciator panel. Refer to Section 31-50.
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Detail Steps/Work Items Key Items/References
(10) Set the alternate air control to OFF.
(11) Set the propeller control to MAX RPM. Fully forward.
(12) Set the electrical fuel pump to ON. Listen for the fuel pump working, Make sure that: S The fuel pressure increases.
(13) Set the throttle to 1/4 open.
(14) Prime the engine: S If the engine is cold, set the mixture control to full RICH for 3 seconds. Then move the mixture control to IDLE CUT-OFF. S If the engine is warm, set the mixture control to full RICH for 1 second. Then move the mixture control to IDLE CUT-OFF.
(15) Press on both brake pedals together and hold the flying controls in neutral.
(16) Make sure the area of the propeller is clear.
(17) Turn the ignition switch to the START position. Make sure that the engine start light comes on.
(18) When the engine starts: S Release the ignition switch to the BOTH position. S Move the mixture control to RICH. Make sure that the engine start light goes out. Fully forward.
(19) Set the throttle to give 1000 - 1200 RPM. Make sure that there are no warning lights on.
(20) Monitor the oil pressure. The oil pressure must rise to 25 psi minimum, within 30 seconds of starting the engine. If it does not, then you must shut-down the engine.
(21) Set the electrical fuel pump to OFF.
(22) Set the throttle to give 1500 RPM. Warm up the engine until the oil temperature reaches 100 °F. Monitor the instruments for unusual indications.
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8. Measure/Adjust Engine Performance
A. Measure Engine Performance
DA 40 Series
Detail Steps/Work Items Key Items/References
(1) Set the engine to 2000 RPM.
(2) Do a test of the LASAR system (if installed) and the left magneto: S Set the ignition switch to L. S Set the ignition switch to BOTH. The RPM must decrease by 50 - 175 RPM. If the LASAR system is installed, the ignition status light (IGN or IGNITION) must come on. The RPM must return to 2000 RPM. If the LASAR system is installed, the ignition status light (IGN or IGNITION) must go off after 20 seconds.
(3) Do a test of the LASAR system (if installed) and the right magneto: S Set the ignition switch to R. S Set the ignition switch to BOTH. The RPM must decrease by 50 - 175 RPM. If the LASAR system is installed, the ignition status light (IGN or IGNITION) must come on. The RPM must return to 2000 RPM. If the LASAR system is installed, the ignition status light (IGN or IGNITION) must go off after 20 seconds. The maximum difference between the left and right magneto RPM drop is 50 RPM.
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