SkyTrak 8042 Service Manual - Manual (Page 196)

Electrical System
9-14 6036, 6042, 8042, 10042, 10054
9.8 WINDOW WIPER/WASHER
WINDSHIELD WIPER MOTOR
9.8.1 Windshield Wiper Motor
a. Removal
Note: It may be necessary to remove several hydraulic
hoses from behind the dash in order to remove and
install the wiper motor housing. (Refer to Section 4.3.1,
“Steering Column and Steering Valve.”)
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the transmission control lever in
(N) NEUTRAL, engage the park brake and shut the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
3. Open the rear door. Allow the system fluids to cool.
4. Properly disconnect the battery.
5. Remove the right side instrument panel.
6. Remove the lower access panel below the
instrument panel.
7. Disconnect the right side defroster hose from the
dash panel hose connector.
8. Disconnect the cab harness connectors from the
wiper motor (3).
9. From the outside and front of the cab, remove the
windshield wiper blade arm (4) nuts and washer
from the motor shaft.
10. Disconnect the washer hose from the hose
connector.
11. Remove the wiper arms, knurled driver and rubber
cap from the motor shaft.
12. Remove the metal hex jam nut and metal washer
from the motor shaft.
13. Remove the motor mounting bolts, panto adapter
and gasket from the motor shaft.
Note: Retain all hardware removed from the wiper
assembly for possible reuse on the replacement motor
housing.
14. Remove the motor from the inside of the cab.
b. Disassembly
DO NOT disassemble the motor. The motor is not
serviceable. Replace motor if found to be defective.
c. Inspection and Replacement
Inspect the motor terminals for continuity. Replace motor
if continuity is not found.
d. Installation and Testing
1. Install all required hardware to the motor assembly.
Align spacer and wiper motor bracket, and apply
masking tape in order to hold the two components
together during installation.
2. Align motor with the mounting holes and insert motor
through cab.
3. Have an assistant insert gasket, panto adapter onto
the motor shaft. Insert bolts through front cab holes
and thread into motor housing. Tighten bolts.
4. Install metal washer and metal hex jam nut. Tighten
metal hex jam nut. Install rubber cap and knurled
driver onto the motor shaft.
Note: Align the wiper blade arm with the hex jam nut.
Tighten shaft to ensure wiper stroke covers window
area, and it does not swipe past the glass area.
5. Install wiper blade arm at 90° from the motor shaft
flat.
6. Connect the cab harness connectors to windshield
wiper motor connectors.
7. Properly connect the battery.
8. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
MA8431
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