JLG 4017 Service Manual - Manual (Page 139)

9.19 4017
Electrical System
b. Disassembly
DO NOT disassemble the switch. The switch is not
serviceable. Replace switch if found to be defective.
c. Installation and Testing
1. Connect the windshield washer switch to the cab
harness connector.
2. Position the switch over the rectangular switch bezel
and snap into position.
3. Connect the negative (-) battery cable to the negative
(-) battery terminal.
4. Check the washer reservoir for fluid; fill if needed.
5. Turn the ignition key switch to the RUN position and
test the windshield washer functions. Verify that fluid
is being pumped to both the front and rear
windshields.
9.9.3 Windshield/Rear Window Washer
Reservoir and Pump
The windshield washer motor and reservoir is located in
the engine compartment as a unit and cannot be serviced
separately.
a. Removal
1. Open engine cover. Allow engine to cool.
2. Disconnect the negative (-) battery cable at the
negative (-) battery terminal.
3. Remove the nuts and the lock washers from the
washer mounting bolts.
4. Pull the washer reservoir out and away from the
mounting bracket.
5. Rotate the washer reservoir, label and remove the
cab harness connectors from the washer reservoir
connectors.
6. Remove the windshield washer hoses from the
reservoir.
b. Disassembly
DO NOT disassemble the pump. The pump is not
serviceable. Replace pump if found to be defective.
c. Installation and Testing
1. Connect the windshield washer hoses to the
reservoir.
2. Connect the cab wiring harness connectors to the
reservoir connectors.
3. Install the reservoir tank onto the mounting bracket.
4. Install the lock washers and nuts and secure.
5. Fill the washer fluid reservoir with washer fluid.
6. Connect the negative (-) battery cable to the negative
(-) battery terminal.
7. Turn the ignition key switch to the RUN position and
press the washer switch. Verify that fluid is sprayed
on both the windshield and rear glass.
8. Close and secure engine cover.
9.10 CAB HEATER AND FAN
9.10.1 Cab Heater Controls
Note: If the suspect component is found to be within the
heater box, the heater box must be removed as a
complete unit and replaced. For additional information
on the removal and installation of the heater box, refer to
Section 4.3.6, “Heater/Defroster System.”
a. Cab Heater Controls Removal
MZ0190
Fan
Speed
Temperature
Control