DCA-400SPK —TROUBLESHOOTING (GENERATOR/ENGINE)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use the tables shown for
diagnosis based on the Engine and Radiator Troubleshooting (Table 17). If the problem cannot be remedied, consult our company's business office or service plant.
TABLE 17. GENERATOR TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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| AC Voltmeter defective? | Check output voltage using a voltmeter. | |
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No Voltage Output | Is wiring connection loose? | Check wiring and repair. | |
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Is AVR defective? | Replace if necessary. | ||
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| Defective Rotating Rectifier? | Check and replace. | |
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| Is engine speed correct? | Turn engine throttle lever to "High". | |
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Low Voltage Output | Is wiring connections loose? | Check wiring and repair. | |
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| Defective AVR? | Replace if necessary. | |
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High Voltage Output | Is wiring connections loose? | Check wiring and repair. | |
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Defective AVR? | Replace if necessary. | ||
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| Short Circuit in load? | Check load and repair. | |
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Circuit Breaker Tripped | Over current? | Confirm load requirements and reduce. | |
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Defective circuit breaker? | Check and replace. | ||
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| Over current Relay actuated? | Confirm load requirement and replace. | |
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