Doosan L6-60HZ-T4F Operation And Maintenance Manual page 48

Operating & Maintenance Manual
Won't START/RUN cont'd
Engine Temperature Shutdown
Engine Oil Pressure Shutdown
Main Circuit Breaker - cannot be
reset
No Alternator Voltage Output
High/Low Alternator Voltage Output
High/Low Alternator Frequency
Output
Fluctuating Alternator Frequency/
Voltage and or Oscillating Engine
50
Engine water temperature too high
Engine oil pressure too low
Loose wire connection
Defective switches
Malfunctioning relay
Engine malfunctioning
Loose or broken engine fan belt
Ambient temperature too high
Dirty operating conditions
Dirty radiator
Electrical output overload
Low oil level
Out of level > 15 degrees
Wrong lube oil
Engine malfunctioning
Defective switch
Loose or intermittent wire connection(s)
Incorrect electrical connection
Defective main breaker
Main circuit breaker OFF
Loose or intermittent wire
Electrical output overload
Low engine power
Incorrect electrical connection
Defective alternator diode bridge assembly
Defective alternator
Incorrect electrical connection
Incorrect engine speed adjustment
Unstable engine speed (oscillation)
Unstable electrical requirements
Low engine power
Loose or intermittent wire connection(s)
Defective alternator diode bridge assembly
Incorrect engine speed adjustment
Incorrect electrical connection
Low engine power
Unstable engine speed (oscillation)
Unstable electrical connection
Electrical output overload
Loose or intermittent wire connections
Unstable electrical requirements
Unstable engine speed (oscillation)
Incorrect engine speed adjustment
Low engine power
Electrical output overload
Clogged air/fuel filter(s)
Loose or intermittent wire connection(s)
Incorrect electrical connection
Main circuit breaker(s) OFF
Defective Generator
Troubleshooting