TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 ENGINE RUN-IN 0044 00 WP 0044 00-10 RUN-IN (Continued) 12. Perform run-in test in accordance with the following test schedule. a. Set manifold pressure manometers and entrance air inclinometer to local uncorrected wet barometer reading, as applicable. b. Check cylinders for firing by observing exhaust gas temperature. c. Enter time and rpm at start of each period. d. Complete readings as soon as engine temperatures have stabilized. e. Plot oil consumption every ten minutes at 2400 rpm, full load, during run number 8. f. The following limits must not be exceeded: - Inlet air temperature of 120 °F (49 °C). - Exhaust gas temperature (measured at each cylinder and with turbocharger inlet air flow restriction less than 1.0 inch of mercury) of 1250 °F (677 °C). - Oil pressure limits. Measure during test with oil temperature of 140 to 250 °F (60 to 121 °C) at and/or adjacent to the pressure sending unit. High oil pressure should not be more than 70 psi (482.6 kPa) nor less than 40 psi (275.8 kPa). Check high oil pressure when the engine is operating at 2400 rpm. Low oil pressure should not be less than 15 psi (103.42 kPa). Check when engine is idling. TEST SCHEDULE Run Number Time (Minutes) Speed (rpm) Net Observed Torque foot-pound N•m 1 10 700 No Load No Load 2 15 1000 85 115 3 15 1400 440 597 4 20 1800 837 1135 5 20 2200 1024 1388 6 20 2400 1092 1481 7 30 2400 1202 1630 8 30 2400 *FR-FL *FR-FL 9 675-725 Check low idle rpm. Adjust for smooth low idle if necessary. 10 675-725 Inspect for oil and fuel leaks. * Full Rack-Full Load