Electrical System
9.24
3507, 3508, 3509, 3512, 3513, 4007, 4008, 4009, 4012, 4013
b. Inspection and Replacement
Inspect the wiring harness connector and alarm terminals
for continuity and shorting. Test the alarm by turning the
ignition key switch to the RUN position and shifting the
transmission control lever into the REVERSE position.
The alarm should sound.
Replace a defective or faulty alarm with a new part.
9.10
WINDOW WIPER/WASHER
9.10.1
Windshield Wiper Motor
a. Removal
Note:
It may be necessary to remove several hydraulic
hoses from under the dash in order to remove and install
the wiper motor housing.
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 engine cover. Allow the engine to cool.
4. Disconnect the battery negative (-) cable at the
battery negative (-) terminal.
5. Remove the lower dash panel.
6. Disconnect the right side defroster hose from dash
panel hose connector.
IMPORTANT: DO NOT
start the engine with the hoses
not connected to their proper fittings.
7. Disconnect the cab harness connectors from the
wiper motor.
8. Remove the linkage attached to the wiper motor (
4
).
9. Loosen and remove the four bolts holding the wiper
motor to the mounting bracket.
Note:
Retain all hardware removed from the wiper
assembly for possible reuse on the replacement motor
housing.
10. 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.
2. Align motor with the mounting holes and bolt the
motor to the mounting bracket.
3. Connect the wiper linkage to the wiper motor shaft.
Note:
Align the wiper linkage arm with the flat on the
motor shaft to ensure wiper stroke covers window area,
and it does not swipe past the glass area.
4. Connect the cab harness connectors to windshield
wiper motor connectors.
5. Connect the battery negative (-) cable to the battery
negative (-) terminal.
6. Turn ignition key switch to the RUN position, and
operate windshield wiper in both LOW and HIGH
speeds to ensure proper operation and that correct
wiper travel is achieved.
7. Install right side defroster hose to the dash panel
hose connector.
8. If previously removed, install hydraulic hoses under
the dash.
9. Install the lower dash panel.
10. Close and secure the engine cover.
MAH0910
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