Komatsu 830E-AC Shop Manual page 922

Installation
1. Place wiper arm (1, Figure 3-2) into the position
noted during removal. Install washer (3) and nut
(2). Tighten the nut to 16-20 N·m (142-177 in.
lbs) torque. Close the cover.
2. Connect the washer hose to the wiper arm.
3. Ensure the wipers arms operate properly and
park in the proper position after installation is
complete. Refer to Figure 3-3.
FIGURE 3-3. PARK POSITION
A. Park Position (7°)
1. Wiper Motor
2. Wiper Blade
3. Cap Screw
4. Lock Washer
N3-4
5. Flat Washer
6. Wiper Arm
7. Nozzle
8. Retainer
9. Hose
Cab Components
WIPER LINKAGE
Removal
1. Remove the wiper arms. Refer to Wiper Arm
Removal in this section.
2. Remove wiper retainer (8, Figure 3-3) and dis-
connect the wiper linkage from the wiper motor
drive arm.
3. Remove nut (6, Figure 3-2) and the washer (5)
from each wiper shaft.
4. Remove cap screws (3, Figure 3-3) with wash-
ers.
5. Remove wiper assembly from cab.
Installation
1. Place the wiper assembly into position in the
wiper compartment.
2. Install cap screws (3, Figure 3-3) with lock
washers (4) and flat washers (5) and tighten
cap screws.
3. Install washer (5, Figure 3-2) and nut (6) on
each wiper shaft and tighten finger-tight.
Tighten the nuts to 18-20 N·m (160-177 in. lbs)
torque. Do not overtighten. The threads on
the shafts are easily stripped when improp-
erly tightened. Install cap (4) over nut (6).
4. Align the linkage and attach to the wiper motor
drive arm using retainer (8, Figure 3-3).
NOTE: When the motor is parked, the drive arm will
be in the 3 o'clock position as shown in Figure 3-3.
5. Install the wiper arms. Refer to Wiper Arm
Installation. Ensure the wipers arms operate
properly and park in the proper position after
installation is complete.
N03025