Step 3. Engine Run-Up - Lycoming TEO-540-A1A Installation And Operation Manual

TEO-540-A1A Engine Installation and Operation Manual
NOTICE: Unstable oil pressure or oil pressure less than 25 psi (172 kPa) could be an
indication of obstructed or interrupted oil flow or air in the oil hose. In this case,
stop, and have a technician look at the oil hoses.
Upon engine start, if smoke comes from a newly installed engine, after the first start,
there could have been some preservative oil in the cylinders, induction system,
and/or fuel nozzles/lines. If oil pressure is normal and the engine operates smoothly,
continue to operate the engine until the smoke clears. Otherwise stop the engine,
contact Lycoming Engines.
13. After the engine is put back into service after storage, maintenance, repair, fault isolation,
overhaul, or rebuild, complete the operational test (as per "Step 4. Complete the Operational
Test" in this chapter.).

Step 3. Engine Run-Up

WARNING IF DURING ENGINE RUN-UP OR ENGINE IDLE, ANY OPERATIONAL
PROBLEMS OCCUR, DO NOT TAKE-OFF. IDENTIFY AND CORRECT
THE CAUSE OF THE PROBLEM AND REPEAT THIS RUN-UP.
Complete the engine run-up as follows:
1. Start the engine.
2. Make sure the oil temperature is above the specified minimum.
WARNING IF THE ENGINE IS OPERATED AT LOW OIL PRESSURE OR LOW OIL
3. Make sure the oil pressure and oil temperatures are within operating range (Appendix A).
4. Increase the power control to 1200 rpm and let it stabilize.
5. Pull the EEC/ECU circuit breaker.
6. As the engine continues to operate, increase the power control from 1200 to 1400 rpm over 2
minutes. Allow the engine to stabilize and continue to operate.
7. Decrease the power control back to 1200 rpm over 2 minutes. Allow the engine to stabilize
and continue to operate.
8. Reset the EEC/ECU circuit breaker. Decrease the power control to IDLE and allow the
engine to stabilize.
NOTICE: Do not use the Field Service Tool (FST) during flight.
9. Complete "Step 4. Pre-Flight Test" section in this chapter.
Step 4. Pre-Flight Test
The Pre-Flight Test (PFT) is done during engine run-up before flight to make sure that:
• The engine is operating correctly
• Both ECU channels are operating correctly to control the engine
• There are no latent failures on the secondary channel of the ECU before each flight.
© 2018 Avco Corporation. All Rights Reserved
October 2018
LEVEL, THE ENGINE CAN MALFUNCTION OR STOP.
Engine Operation
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