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