JLG 4017RS Service Manual - Manual (Page 172)

Electrical System
9-20 3614RS, 4017RS
9.8.3 Transmission Mounted Speed Sensor
Transmission speed sensor (8) is located on the side of the
transmission bell housing.
a. Transmission Mounted Speed Sensor Removal
1. Park machine on a firm, level surface, level machine,
fully retract boom, lower boom, place transmission in
(N) NEUTRAL, engage park brake and shut engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel.
3. Open engine cover. Allow system fluids to cool.
4. Properly disconnect battery.
5. Unplug the speed sensor connector (9) from the wiring
harness connector.
6. Loosen screw (10) holding clamp and remove sensor.
b. Transmission Mounted Speed Sensor Inspection and
Replacement
Inspect sensor and wiring harness connector terminals for
continuity. Replace a defective or faulty sensor with a new
part.
c. Transmission Mounted Speed Sensor Installation
and Testing
1. Install sensor in transmission, install clamp on sensor.
Secure with screw removed earlier.
2. Connect sensor plug to wire harness.
3. Properly connect battery.
4. Close and secure engine cover.
5. Remove Do Not Operate Tag from ignition key switch
and the steering wheel.
9.8.4 Engine Coolant Temperature
Sensor
Engine coolant temperature sensor (9) is located on left side
of engine.
a. Engine Coolant Temperature Sensor Removal
1. Park machine on a firm, level surface, level machine,
fully retract boom, lower boom, place transmission in
(N) NEUTRAL, engage park brake and shut engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel.
3. Open engine cover. Allow system fluids to cool.
4. Properly disconnect battery.
5. Unplug engine coolant temperature sensor connector
from wiring harness connector.
6. Loosen and remove engine coolant temperature sensor
from engine block.
b. Engine Coolant Temperature Sensor Inspection and
Replacement
Inspect sensor and wiring harness connector terminals for
continuity. Replace a defective or faulty sensor with a new
part.
c. Engine Coolant Temperature Sensor Installation and
Testing
1. Apply a lubricate to o-ring on temperature sensor.
2. Thread engine coolant temperature sensor into engine
block. Tighten and torque the sensor to
17-23 Nm (12.5-17 lb-ft).
3. Connect sensor connector to wiring harness connector.
4. Properly connect battery.
MZ8200
9
10
8
MZ6 0 84
9