Komatsu D37EX-24 Operation & Maintenance Manual page 141

OPERATION
WIPER SWITCH
The wiper switch operates the windshield wiper.
The wiper switches are as follows.
(A) LH: Left door
(B) FF: Front window
(C) RH: Right door
(D) RR: Rear window
(E) INT: Intermittent operation switch (for right and front doors)
REMARK
If the wiper blade is locked for some reason, the wiper stops
automatically.
The wiper starts again automatically after a certain period of
stop. Be sure to remove the cause of stop, however.
Examples of causes of stop
• Long operation while glass is half dry
• Foreign material caught in arm or blade
• Snow or ice sticking to arm or blade
This switch is also used as the window washer switch.
The switch is operated as follows.
Switches (LH), (FF), (RH), and (RR)
(a) ON position
The wiper operates.
(b) Washer operating position
While the switch is depressed, the washing water is sprayed
and wiper operates at the same time.
When the switch is released, it returns to (a) position, washing
water stops, and only wiper operates.
(c) OFF position
The wiper stops.
Switch (INT)
(a) ON position
The wipers on right and left door operate intermittently.
(b) OFF position
The wipers on right and left door operate continuously.
EXPLANATION OF COMPONENTS
3-83