Komatsu GD555-5 Operation & Maintenance Manual page 91

OPERATION
EXPLANATION OF COMPONENTS
LIFT ARM LOCK SWITCH
This switch (6) is used to remove or insert the lifter lock pin.
This switch is used when setting the blade to the bank cut posture
or shoulder reach posture. Press the switch to remove the pin, and
press the switch again to return the switch and insert the pin.
A cover is provided to prevent accidental operations. Before
pressing the switch, open the cover.
HAZARD LAMP SWITCH
WARNING
Never use the hazard lamp except in emergencies. If it is used while traveling when there is no problem, it may cause
misunderstanding for drivers of other vehicles.
Use this switch (7) only in emergencies such as the case when
having to park on a road due to a failure, etc.
Position (A): All turn signal lamps and turn signal pilot lamps flash.
Position (B): OFF
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