Komatsu 830E-AC Shop Manual page 921

WINDSHIELD WIPERS
The windshield wipers are operated by a 24 volt elec-
tric motor. The wipers can be adjusted for a variable
intermittent delay or a constant low or high speed by
the switch mounted on the turn signal lever.
WIPER MOTOR
Removal
1. Remove the large access panel from the front
of the cab.
2. Disconnect the wiper motor harness connector.
FIGURE 3-1. WINDSHIELD WIPER
1. Wiper Motor
2. Cap Screw
3. Flat Washer
4. Lock Washer
5. Plate
N03025
CAB COMPONENTS
6. Cap Screw
7. Flat Washer
8. Lock Washer
9. Linkage
10. Nut
Cab Components
3. While holding the linkage stationary, remove
nut (10, Figure 3-1) and disconnect the linkage
from the motor.
4. Remove three cap screws (6) with washers
attaching the wiper motor to plate (5). Remove
the motor assembly.
Installation
1. Place wiper motor (1, Figure 3-1) into position
on plate (5).
2. Install three cap screws (6) with flat washers (7)
and lock washers (8). Tighten cap screws to 8-9
N·m (71-79 in. lbs) torque.
3. Align the motor output shaft with the wiper link-
age. Install nut (10) and while holding the link-
age stationary, tighten nut to 22-24 N·m (16-18
ft. lbs) torque.
4. Reconnect the wiper motor harness connector.
5. Verify the wipers operate properly and park in
the proper position. Refer to Figure 3-3.
WIPER ARM
Removal
1. Note the parked position of wiper arm (1, Figure
3-2).
2. Lift the wiper arm cover and remove nut (2) and
washer (3).
3. Disconnect the washer hose, and remove the
wiper arm.
FIGURE 3-2. WIPER ARM DETAIL
1. Wiper Arm
2. Nut
3. Spring Washer
4. Cap
5. Washer
6. Nut
N3-3