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Semi–Annually Annually APPENDIX E • Check that all required service tools are readily available. Engne Family Exhaust Stack Temperatures Calibrated Thermocouple B Series 550 C Series 600 LTA10 650 M11 650 NT(A)855 650 N14 650 QSX15 700 KTA19 650 VTA28 650 QST30 650 KTA38 650 QSK45 700 KTA50 700 QSK60 700 QSK178 700 Rev. Jan 2011 Application Manual – Liquid Cooled Generator Sets Table E–1. Recommended Minimum Exhaust Stack Temperatures. (Exhaust gas temperature is measured by thermocouple. Use of external temperature sensing is not sufficiently accureate to verify exhaust temperature.) • Change engine oil filters. • Change the filter(s) in the coolant conditioner circuit. • Clean or replace the crankcase breather filter(s). • Change the fuel filter(s), drain sediment from fuel tanks, check flexible fuel hoses for cuts and abrasions and check the governor linkage. • Check electrical safety controls and alarms. • Clean up accumulations of grease, oil, and dirt on the generator set. • Check power distribution wiring, connections, circuit breakers, and transfer switches. • Simulate a utility power outage. This will test the ability of the set to start and assume the rated load. Check the operation of the automatic transfer switches, related switchgear and controls, and all other components in the standby power system. • Check the fan hub, pulleys, and water pump. • Clean the day tank breather. • Check and torque the exhaust manifold and turbocharger fasteners. • Tighten the generator set mounting hardware. • Clean the generator power output and control boxes. Check for and tighten all loose wiring connectors. Measure and record generator winding insulation resistances. Check the operation of the generator heater strips and grease the bearings. E–3
Application Manual – Liquid Cooled Generator Sets • Check the operation of the main generator circuit breaker (if used) by manually operating it. Test the trip unit according to the manufacturer’s instructions. • If the set is normally exercised at no–load or carries only light loads, run the generator set for at least three hours, including one hour at near rated load. • Conduct generator insulation tests annually throughout the life of the generator set. Initial tests done before final load connections are made will serve as benchmarks for annual tests. These tests are mandatory for generator sets rated above 600 VAC. Review ANSI/IEEE Standard 43, Recommended Practice for Testing Insulation Resistance of Rotating Machinery. E–4 APPENDIX E Rev. Jan 2011
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