Cab Components; Windshield Wiper - Komatsu 830E Shop Manual

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 instrument panel.
Wiper Motor
Removal
1. Remove the five screws inside of the cab that
secure the visor assembly/access panel. Lower
the access panel.
2. Disconnect the wiper motor harness connector.
3. While holding the linkage stationary, remove nut
(4, Figure 3-1) and disconnect the linkage from
the motor.
4. Remove three capscrews (3) with washers
attaching the wiper motor to plate (2). Remove
the motor assembly.
FIGURE 3-1. WINDSHIELD WIPER INSTALLATION
1. Wiper Motor
2. Plate
N03018

CAB COMPONENTS

3. Capscrew
4. Nut
Cab Components
Installation
1. Place wiper motor (1, Figure 3-1) into position
on plate (2).
2. Install three capscrews (3) with washers.
Tighten capscrews to 71-79 in. lbs. (8-9 Nm)
torque.
3. Align the motor output shaft with the wiper link-
age. Install nut (4) and while holding the linkage
stationary, tighten nut to 16-18 ft. lbs. (22-24
Nm) 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
N3-1