Doosan DX225LC, Manual, Page: 121 / 136

Electrical System SP000935
Page 120
Wiper operation
Continuous operation
Operation of wiper motor
Pressing the successive operation switch on the wiper switch
panel (7) changes the voltage of the "5" terminal of the wiper
controller (6) from HIGH (about 5.5 ± 0.5V) to LOW (0+0.5V)
and current flows by way of the "3" terminal of the wiper
controller (6)
o
the "2" and "4" terminals of the wiper motor (5)
o
the "4" terminal of the wiper controller (6) to run the wiper
motor (5) continuously.
Stop of wiper motor
Pressing again the successive operation switch on the wiper
switch panel (7) changes the voltage of the "5" terminal of the
wiper controller (6) from LOW (0+0.5V) to HIGH (about
5.5 ±0.5V). As the "5" and "6" terminals of the wiper motor are
connected still that power is supplied to the "6" terminal of the
wiper controller (6),
However, the controller (6) runs the wiper motor continuously
and then rotates the motor reversely by " letting current flow by
way of the "4" terminal of the wiper controller (6)
o
the "2" and
"4" terminals of the wiper motor (5)
o
the "3" terminal of he
wiper controller (6) when the "1" and "6" terminals of he wiper
motor (5) are connected and thus power voltage is supplied to
the "7" terminal of the wiper controller (6).
The Wiper motor (5) stops reverse revolution when the contact
of a cam switch connected to the "6" terminal of the wiper motor
(5) moves to an insulation area of the cam plate to disconnect
the "5" and "6" terminals of the wiper motor (5).
When the wiper motor (5) stops, arm and blade connected to it
move to the stop positions of the right pole in the cabin.