Komatsu D65EX-12 Operation & Maintenance Manual page 61

OPERATION
EXPLANATION OF COMPONENTS
HORN SWITCH
The horn sounds when the button (3) at the rear of the blade
control lever at the right side of the operator's seat is pressed.
HEAD LAMP SWITCH
This switch (4) lights up the head lamps.
OFF position: Lamps are out
ON position: Lamps light up
REAR LAMP SWITCH
This switch (5) lights up the rear lamps.
OFF position: Lamps are out
ON position: Lamps light up
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