Kubota D902-E4B - 9. Trouble Shooting

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9. Trouble Shooting
＜Pre-check＞
Always check the level of oil, coolant and fuel before processing proceeding to trouble shooting.
(1) NO AC OUTPUT
(2) HIGH AC OUTPUT
Check volt meter.
Refer to page 19.
Replace volt meter.
Check breaker.
Refer to page 20.
Replace breaker.
Check exciter stator.
Refer to page 16.
Replace exciter
stator.
Check exciter winding.
Refer to page 15.
Replace main stator,
rectifier #1 and rectifier #2.
Check main stator.
Refer to page 14.
Replace main controller.
(AVR)
Replace main stator.
Check transformer.
Check if wire is damaged
or disconnected.
Refer to page 19.
Replace transformer.
Replace lead wire.
Replace voltage regulator.
Replace lead wire.
Check Voltage regulator
Check if wire is damaged
or disconnected.
Refer to page 20.
Replace Main controller
(AVR)
Bad
OK
NO
OK
OK
OK
OK
NO
NO
NO
NO
OK
OK
NO
NO