Troubleshooting; Generator Troubleshooting - Yamaha EDL13000SDE Owner's Manual

TROUBLESHOOTING

36
TROUBLESHOOTING
3
WARNING
CAUTION:
To avoid personal injury:
¡ Always perform all checks with engine stopped and cool to the touch except for
those checks in which operation is required.
¡ DO NOT touch the charging section during operation.
¡ Avoid any contact with rotating fan during operation.
If the engine does not function properly, use the following chart to identify and correct the cause.
a Generator Troubleshooting
Trouble
Unusual noise or
vibration
Frame overheated.
Voltage failure to rise.
Voltage too high.
Voltage hunting
Circuit breaker turned
OFF.
Pilot lamp failure to
light up
Possible causes
Single-phase load applied beyond allowable
level (on three phase models).
Bearing deteriorated.
Coupling damaged.
Cooling fan inlet or outlet blocked.
Voltage too high.
Overloaded.
Voltage maladjusted.
AVR excitation output cable broken.
AVR itself in trouble.
Exciter's winding short-circuited or broken.
AVR excitation input cable broken.
Generator's winding broken.
AVR excitation output fuse blown out.
Voltage maladjusted.
AVR voltage detection cable broken.
AVR itself in trouble.
Mercury arc lamp or such conductive load connected.
Inverter or such switching load connected.
AVR itself in trouble.
Connected cable or load short-circuited.
Overloaded.
Lamp bulb broken.
Generator voltage too low.
Correction
*Lower the load to acceptable level.
*Replace the bearing.
*Replace the coupling.
*Unblock the inlet or outlet.
*Readjust the voltage.
*Reduce the load.
*Readjust using the voltage control.
*Repair the cable.
*Replace the AVR.
*Replace the generator.
*Repair the cable.
*Replace the generator.
*Replace the fuse.
*Readjust using the voltage control.
*Repair the cable.
*Replace the AVR.
*Disconnect such load.
*Disconnect such load.
*Replace the AVR.
*Contact a qualified electrical
engineer for inspection.
*Reduce the load.
*Replace the bulb.
*See "Voltage failure to rise" above.