JLG 4013PS Service Manual - Manual (Page 170)

Electrical System
9-30 3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
9.14.2 Transmission Temperature Switch
The transmission temperature switch (9) is located at the
bottom right side of the transmission housing.
a. Transmission Temperature Switch Removal
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. Unplug the transmission temperature switch
connector from the wiring harness connector.
6. The switch is threaded into the transmission
housing. Remove the switch.
b. Transmission Temperature Switch Inspection
and Replacement
Inspect the switch and the wiring harness connector
terminals for continuity. Replace a defective or faulty
switch with a new part.
c. Transmission Temperature Switch Installation
and Testing
1. Thread the transmission temperature switch into the
transmission housing snugly, then connect the
switch connector to the wiring harness connector.
2. Properly connect the battery.
3. Check for proper fluid level.
4. Start the engine, allow it to reach operating
temperature and observe the operator display
cluster for warning indication. If the sender is not
defective, the problem could be elsewhere; possibly
in a shorted wire, damaged transmission, improper
or low fluid, etc.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
9.14.3 Transmission Mounted Speed Sensor
(if equipped)
The transmission speed sensor (10) is located at the left
side of the transmission below the transmission filter.
a. Transmission Mounted Speed Sensor Removal
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. Unplug the speed sensor connector from the wiring
harness connector.
6. Loosen the screw holding the clamp and remove the
sensor, clamp and o-ring.
b. Transmission Mounted Speed Sensor Inspection
and Replacement
Inspect the sensor and the wiring harness connector
terminals for continuity. Replace a defective or faulty
sensor with a new part.
MZ2150 9
MZ2120
10