MIL-DTL-62177E AVDS-1790-2 Engine Series Specification Download
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MIL-DTL-62177E 15 TABLE VI. Break-in schedule. Run number Time minutes Speed rpm Torque lb ft (N m) 1 10 Idle 700-750 Warm up 2 15 1000 85 (115) 3 15 1400 440 (597) 4 20 1800 837 (1135) 5 20 2200 1024 (1389) 6 20 2400 1092 (1481) 7 30 2400 1202 (1630) 8 30 2400 Full power setting 9 5 2400 Full power setting 10 5 2200 Full power setting 11 5 2000 Full power setting 12 5 1800 Full power setting NOTES: -Bare engine shall operate without generator (see 6.5). -Basic engine shall operate with alternator and field excitation only (see 6.5). -Engine shall operate on its designed oil system, not on a test cell oil system. -Check for low idle at 700 to 750 rpm - adjust if necessary. -Inspect visually for air, exhaust, oil, and fuel leaks. -Check governor high idle speed at 2600 to 2660 rpm (no load, dynamometer water off). If adjustment is required, recheck the horsepower at 1800 and 2400 rpm at the full power setting. -The governor shall be resealed after adjustment. 4.6.4 Support and ownership requirements verification. 4.6.4.1 Endurance. To determine conformance to 3.5.1, the engine shall be subjected to an applicable test as follows. 4.6.4.1.1 First article. The engine shall be tested as specified in table VII for 20 cycles. The engine shall require only minor services (such as replacing oil or fuel filter elements) during these runs. Adjustments or replacement of parts must have approval by the Government. The test shall be conducted under the following conditions: a. Running time less than 30 minutes shall not be counted toward the fulfillment of endurance hours. b. The inlet air temperature shall be not less than 60°F nor more than 100°F.