4-14 General Troubleshooting TP-5606 6/02
GENERATOR
No Rotor slip rings dirty Check and/or service Section 8. Brushes
generator or corroded
output (1-phase models only)
voltage
(continued) Broken, weak, or Check condition Section 8. Brushes
missing brush spring
(1-phase models only)
Fuse blown in Replace fuse. If Section 7. Voltage
voltage regulator fuse blows again, Regulator
circuit (lead 55) check voltage regulator Section 9. Wiring Diagrams
and stator aux. windings
Defective voltage Excite (rotor) Section 7. Separate
regulator separately Excitation
Misadjusted voltage Section 7. Voltage
regulator Regulator Test/
Alignment
Problem Possible Cause Corrective Action Reference
Low Low engine rpm Check engine speed Section 3. Governor
generator using frequency meter Adjustments
output or tachometer.
voltage
NOTE: For 60 Hz--1800 RPM
For 50 Hz--1500 RPM
Set overloaded Make sure capacity is Section 3. Wattage
not being exceeded Requirements
Defective rotor Test and/or replace Section 7. Rotor
Defective stator Test and/or replace Section 7. Stator
Defective voltage Test and/or replace Section 7. Voltage
regulator Regulator
Improperly adjusted Readjust Section 7. Voltage
voltage regulator Regulator
Problem Possible Cause Corrective Action Reference
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