Komatsu PC220LC -8 Operation & Maintenance Manual page 64

OPERATION
If Any Abnormality Occurs During Operation
If any abnormality occurs during operation, the standard screen BB changes to warning screen FF-(1) or the error
screen EE.
After displaying warning screen FF-(1) for 2 seconds, the screen automatically changes to warning screen FF-(2).
DETAILED CONTROLS AND GAUGES
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