GEAR-TRANSFER 3T9050 - Caterpillar

Illustration 1 g03383602
Window wiper and washer circuit
The components of the window wiper and washer circuit are the front wiper/washer switch, the side wiper/washer switch, the rear wiper/washer switch, the wiper mode switch, the front, rear, and side washer motors, the side wiper motor, the front wiper motor, the rear wiper motor, the attachment switch and the wiper control.
Illustration 2 g03383604
Cab
(1) Front wiper/washer switch
(2) Side wiper/washer switch
(3) Rear wiper/washer switch
(4) Wiper mode switch
Illustration 3 g00987106
View of hydraulic oil tank compartment (underneath washer bottle)
(5) Front, side, and rear washer motors With the key start switch in the ON position, 24 V power is supplied from the batteries via circuit breaker #10 to the front wiper/washer switch, the side wiper/washer switch, the rear wiper/washer switch, the front, side, and rear washer motors, the front wiper motor, the side wiper motor, the rear wiper motor and the wiper control.
Illustration 4 g00987434
Cab
(6) Side wiper motor When side wiper/washer switch (2) is turned clockwise, 24 V power is supplied to side wiper motor (6). When the side wiper/washer switch is pushed in, 24 V power is supplied to side washer motor (5).
Illustration 5 g00987438
View of front wiper motor
(7) Front wiper motor When front wiper/washer switch (1) is turned clockwise, 24 V power is supplied to front wiper motor (7). When the front wiper/washer switch is pushed in, 24 V power is supplied to front washer motor (5).
Illustration 6 g00987440
Cab
(8) Rear wiper motor When rear wiper/washer switch (3) is turned clockwise, 24 V power is supplied to rear wiper motor (8). When the rear wiper/washer switch is pushed in, 24 V power is supplied to rear washer motor (5).
Illustration 7 g03395106
Cab
(9) Attachment switch
Illustration 8 g00987455
Cab
(10) Wiper control Wiper mode switch (4) determines the operation of the wiper and washer motors. When the wiper mode switch is in the WIPER position and attachment switch (9) is pushed down, all wipers not operating will be on.When the wiper mode switch is moved to the WIPER/WASHER position, contacts 1 and 3 close, and 24 V power is supplied to wiper control (10). When the wiper/washer switches are in the OFF position and the attachment switch is pushed down, a ground circuit is supplied to the wiper control. The wiper control then supplies 24 V power to the front, side, and the rear wiper motors. All three wiper motors will cycle once and park. If the attachment switch is held in the ON position, the wiper motors and washer motors will operate until the attachment switch has been released. The wiper motors will only operate at low speed.If the wipers/washer switches are turned to the ON position, then the attachment switch may be used to operate the washer motors.