Table 17-5. Electric Winterization Heater Control Box Testing

Table 17-4. Electric Winterization Coolant Pump Wear Limits

TM-5-6115-545-34 Generator Set Diesel Engine Driven Tactical Skid Mtd. 30 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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Table 17-5. Electric Winterization Heater Control Box Testing Probable cause Step Test condition Required result for improper result Check out procedure 1. Position heater Heater control box Defective fuse F301. Check continuity of fuse. control box indicators DS301 There should be con- switch to ON should illuminate. tinuity. and apply 230 Vat. Open Defective switch 301. Check continuity of switch switch S2; see when positioned to ON. figure 17-5. There should be con- tinuity. Defective circuit breaker CB301. With ohmmeter, check circuit breaker for correct operation. Defective indicator 301. Check indicator for con- tinuity. There should be some continuity. Defective diodes CR301, CR302, Check diodes with CR303 or CR304. ohmmeter. 2. Close switch S2. Voltmeters V2 Defective transformer T301. See transformer test, and V3 should paragraph 17-18. indicate 230 Vac and volt- Defective relay K301. Check relay per meter V1 paragraph 17-18. should indi- cate approxi- mately 30 Vdc, and DS302 should illumi- nate. 17-14

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