Komatsu PC220LC -8 Operation & Maintenance Manual page 84

OPERATION OPERATION
REMARK
When setting the working mode to B mode, to ensure safety, the
buzzer sounds and at the same time, the message in the
illustration on the right is displayed. When setting to the breaker
mode, always press function switch F6.
If function switch F5 is pressed, the breaker mode is not set, and
the screen returns to working mode selection screen.
NOTICE
When using the breaker, set to B mode. If B mode is not used, there is danger that the breaker may break.
DETAILED CONTROLS AND GAUGES DETAILED CONTROLS AND GAUGES
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