Komatsu H75051, Operation & Maintenance Manual

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• Before starting the engine, replace DEF filter and fill up DEF tank according to the procedure in
“METHOD FOR REPLACING DEF FILTER”.
• Start the engine and check correctly.
If SCR system has any abnormality, warning is displayed on the monitor screen and the audible alert
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 DEF is kept in DEF tank for more than 1 year, ask your Komatsu distributor for replacement.
Dispose of drained DEF according to the local regulations and rules.
Aged DEF may have smell of ammonia. Replace DEF in a well-ventilated place and take care not to
inhale its vapor.
PRECAUTIONS FOR LONG-TERM STORAGE OPERATION
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