Cab Components; Windshield Wiper; Motor Removal; Motor Installation - Komatsu 930E-2 Shop Manual

WINDSHIELD WIPER

The windshield wipers are operated by a 24 volt elec-
tric motor. The wiper can be adjusted for a variable
intermittent delay or a constant low or high speed by
the switch mounted on the instrument panel.

Motor Removal

1. Lower the access panel (1, Figure 3-1) above the
windshield (3).
2. Disconnect motor wiring at the connector.
3. Remove linkage from output shaft retainer (4) by
rotating retainer counterclockwise.
4. Remove screws attaching motor to mounting
bracket and remove motor assembly.
FIGURE 3-1. WINDSHIELD WIPER
INSTALLATION
1. Access Panel
2. Wiper Motor Assembly
N03011 7/98

CAB COMPONENTS

3. Windshield
4. Retainer
Cab Components

Motor Installation

1. Align motor mounting holes with cab bracket.
2. Install mounting screws and washers. Tighten
mounting screws to 16 ft. lbs (22 N.m) torque.
3. Align linkage with motor output shaft arm and push
onto retainer. Rotate retainer clockwise until
locked in place.
4. Reconnect motor to cab harness connector.
5. Verify proper operation of wipers.
Wiper Arm and Shaft Replacement
Removal
1. Lift wiper arm cover (1, Figure 3-2) and remove
arm retaining nut (2) and spring washer (3).
2. Remove hose. Note position of arm and remove
arm.
3. Remove cap (4), nut (6) and washer (7) from pivot.
4. Remove linkage by releasing retainer (8) (turn
counterclockwise) and removing.
FIGURE 3-2. WIPER ARM DETAIL
1. Wiper Arm
2. Nut
3. Spring Washer
4. Cap
5. Pivot shaft
6. Nut
7. Washer
8. Retainer
N3-1