Komatsu D155A-6 Operation & Maintenance Manual page 103

EXPLANATION OF COMPONENTS
HORN SWITCH
The horn sounds when the button (2) at the rear of the blade control
lever at the right side of the operator's seat is pressed.
ROOM LAMP SWITCH
This (3) illuminates the room lamp.
OFF position: Lamp is out
ON position: Lamp lights up
WIPER SWITCH
This (4) activates the wipers.
The wiper switches are as follows:
(LH) Left door
(FF) Front window
(RH) Right door
(RR) Rear window
(INT) Wiper intermittent operation switch
This is also used as the window washer switch.
The switch is operated as follows.
Wiper only
If this is switched on, the wiper will start.
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OPERATION