Kohler 10CCOZ61 Service Manual page 52

Problem
GENERATOR
No Optional AC output
generator circuit breaker open
output
voltage
Optional AC circuit
breaker tripping due to
Short circuit in vehicle
wiring causing circuit
No battery voltage to
exciter field during
Open D4 or D7 diode
K1 relay (Normally
Closed) contacts open
Defective rotor (open,
grounded, or shorted
Defective stator (open,
grounded, or shorted
TP-5648 8/93
Possible Cause
or defective
overload on unit
breaker to trip
cranking
windings)
windings)
Corrective Action
Check position of
circuit breaker
Check AC voltage on
generator side of circuit
breakers
Reduce load
Reset and attempt
startup
Reset circuit breaker.
If breaker trips again,
check wiring.
Check flashing
current
Check for open or
shorted diode (a good
diode has high
resistance one way
and low resistance the
other way, when tested
with ohmmeter)
Check continuity
Test and/or replace
Test and/or replace
Reference
Section 2. Circuit
Protection
Section 9. Wiring Diagrams
Section 3. Wattage
Requirement
Section 9. Wiring Diagrams
Load Wiring Diagram
Section 7. Separate
Excitation Test
Section 9. Wiring Diagrams
Section 7. Circuit Board
Section 9. Wiring Diagrams
Section 7. Circuit Board
Section 7. Rotor
Section 7. Stator
General Troubleshooting 4-13