• Start the engine and check that SCR system is free from abnormality.
If SCR system has any abnormality, warning is displayed on the monitor screen and the buzzer
sounds.
If SCR system has any abnormality, stop the engine, and then start it again.
If SCR system still has abnormality after the engine is restarted, contact your Komatsu distributor.
• If the DEF is kept in the DEF tank for more than 1 year, replace it.
Dispose of the drained DEF according to the local regulations and rules.
Aged DEF may have smell of ammonia.
Replace the DEF in a well-ventilated place and take care not to inhale its vapor.
PRECAUTIONS FOR LONG-TERM STORAGE OPERATION
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