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Doosan 7/71 - Page 68

Doosan 7/71
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66
ENGINE TROUBLESHOOTING
7/71, 12/56
Improper exhaust Clogged air cleaner.
Damaged injector nozzle.
Excessive black smoke Wrong injector nozzle.
Injection timing incorrect.
Excessive injection volume.
Incorrect fuel.
Water mixing in fuel
Excessive white smoke Low compression pressure.
Injection timing incorrect.
Low coolant temperature
Faulty turbocharger
Battery overdischarge Low electrolyte level Crack in battery body.
Natural consumption.
Charging failure Loose or damaged belt.
Faulty alternator.
Damaged wiring or contact failure.
Excessive electrical loads Insufficient battery capacity for the application.

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