JLG 4013PS Service Manual - Manual (Page 166)

Electrical System
9-26 3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
b. Alternator Installation
1. Position the alternator and align with the upper
alternator mount on the engine bracket. Insert the
upper mounting hardware through the alternator
mount. DO NOT tighten completely at this time.
2. Align the lower alternator mount hole with the lower
mounting bracket on the engine. Insert the lower
mounting capscrew. DO NOT tighten completely at
this time.
3. Install the fan belt, adjust the alternator for proper
belt tension and belt alignment. Tighten the lower
capscrew and upper capscrew securely.
4. Connect the previously labeled wire leads.
5. Properly connect the battery.
6. Close and secure the engine cover.
7. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
9.11 ELECTRICAL SYSTEM
COMPONENTS
9.11.1 Back-up Alarm
The back-up alarm is located at the rear of the machine.
When the transmission shift control switch (transmission
control lever) is shifted to the (R) REVERSE position, the
back-up alarm will automatically sound.
Place the transmission control lever in (R) REVERSE to
test the back-up alarm. The back-up alarm must not
sound when the transmission control lever is in (N)
NEUTRAL or (F) FORWARD. Also, with the ignition key
switch in the RUN position, the back-up alarm will sound
when the transmission control lever is shifted into the (R)
REVERSE position.
a. Disassembly
DO NOT disassemble the back-up alarm. Replace a
defective or faulty alarm with a new part.
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.
9.12 WINDOW WIPER/WASHER
9.12.1 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. Properly disconnect the battery.
5. Remove the lower dash panel.
6. Disconnect the right side defroster hose from dash
panel hose connector.
Note: 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.
MAH0910
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