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Fault mode 17˖Excessive noise
Possible cause Correction
Noise from drive belt due to poor tension or
heavy load
Check the belt drive system and ensure all pulleys
running
Leakage of intake system and exhaust system
Check the intake and exhaust systems for leakage.
Tighten the loose components and replace the
related parts if necessary
Noise from the turbocharger
Check the blades of compressor or turbine for their
contact with their housings
Incorrect injection pump timing
Check and adjust injection timing. Refer to 5.2 for
the procedure
Too big valve clearance Check and adjust valve clearance
Fault mode18˖Black smoke
Possible cause Correction
The engine is overloaded Set to lower gear or reduce equipment load
Intake system resistance exceeds the specified
value
Check the intake system for resistance and replace
the air filter element if necessary
Incorrect injection pump timing
Check and adjust injection timing. Refer to 5.2 for
the procedure
Intake/exhaust valve clearance error Check and adjust the valve clearance
Fuel is not proper or its quality is poor
Use the fuel specified in this manual and fill a
temporary tank with right high-quality one, with
which to run the engine and verify the fuel issue
Fault mode 19˖White smoke
Possible cause Correction
The engine is in cold state Warm the diesel engine
Water in fuel Check the first stage fuel filter for fuel and water
separate function. Replace it if required
Injection pump timing is not correct
Check and adjust injection timing. Refer to 5.2 for
the procedure
Fuel is not correct or its quality is poor Use the fuel specified in this manual and fill a
temporary tank with right high-quality one, with
which to run the engine and verify the fuel issue
Fault mode 20˖Blue smoke
Possible cause Correction
A big gap between piston and liner channeling oil
Into the combustion chamber due to the engine
running long time at low load (below 40% of full
load)
Increase engine load and make proper engine load
match
Too much oil in the oil pan Adjust oil level to be within the specified range
Oil leak in the turbocharger due to poor seal Check the compressor outlet and intake pipe for oil
trace
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