Doosan 9/270 Operation And Maintenance Manual page 64

Improper exhaust
Battery over discharge
Excessive black smoke
Excessive white smoke
Low electrolyte level
Charging failure
Excessive electrical loads
ENGINE TROUBLESHOOTING
Clogged air cleaner.
Damaged injector nozzle.
Wrong injector nozzle.
Injection timing incorrect.
Excessive injection volume.
Incorrect fuel.
Water mixing in fuel
Low compression pressure.
Injection timing incorrect.
Low coolant temperature
Faulty turbocharger
Crack in battery body.
Natural consumption.
Loose or damaged belt.
Faulty alternator.
Damaged wiring or contact failure.
Insufficient battery capacity for the application.
9/270, 9/300, 12/235, 17/235, 21/215, 9/270HA, 9/300HA, 10/300HA, 12/235HA, 17/235HA, 21/215HA
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