JLG 4013PS Service Manual - Manual (Page 175)

9-35 3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
Electrical System
Test LSI (8) at the beginning of each work shift.
1. Fully retract and level the boom, with no load. Do not
raise the boom during this test.
2. Level frame using level in cab.
3. Press the test button (8) on the LSI display. This will
cause all LEDs to flash on and an audible warning to
sound. This indicates that the system is functioning
properly. If the test gives a different result, the
system is not functioning properly and the machine
must be removed from service and repaired before
continued operation.
9.15.2 LSI Sensor
The LSI sensor (15) is bolted on the top right of the rear
axle.
Note: If the rear axle is removed or replaced, the LSI
Sensor must be installed AFTER the rear axle is installed
and setting on all four wheels.
a. LSI Sensor Removal
1. Remove any fork carrier or attachment from the
machine.
2. Park the machine on a firm, level surface, level the
machine, fully retract the boom, fully raise the boom,
place the transmission control lever in (N)
NEUTRAL, engage the park brake and shut the
engine OFF.
3. Place a Do Not Operate Tag on both the ignition key
switch and the steering wheel, stating that the
machine should not be operated.
4. Open the engine cover. Allow the engine to cool.
5. Properly disconnect the battery.
6. Disconnect the LSI electrical connector.
7. Loosen, remove and discard the two bolts holding
the LSI assembly to the rear axle.
8. Remove and discard the sensor assembly.
b. LSI Sensor Installation
1. Ensure threads of both bolt holes are clean and free
from rust, water and debris.
2. Clean the bare metal with a degreasing agent,
Loctite ® 7063 TM .
3. Remove any excess degreasing agent and allow to
dry.
4. Apply a thin film of Loctite ® 330 TM adhesive to the flat
metal surface of the sensor, ensuring the adhesive is
spread evenly over the entire surface.
5. Apply a layer of Loctite ® 7386 TM to the mounting
surface of the axle, ensuring the activator is spread
evenly over the entire surface.
Note: Follow all adhesive manufacturer’s
recommendations including storage life.
6. Fit the sensor, ensuring the lead exits in the corner
direction. If the existing bolts are not available, use
M10 x 40mm bolts with a minimum tensile strength
of 10.9.
Note: It is important to prevent distortion of the sensor
element, therefore tighten each bolt finger tight.
Alternately tighten each bolt to 35 Nm (26 lb-ft) and
finally to 70-80 Nm (52-59 lb-ft).
7. Leave the machine undisturbed with NO load for a
minimum of 6 hours before moving.
8. Plug the electrical connector into the sensor
assembly.
9. Properly connect the battery.
10. Close and secure the engine cover.
11. Remove the Do Not Operate Tag from the ignition
key switch and the steering wheel.
12. Calibrate the LSI system, refer to Section 9.15.3,
“LSI System Calibration.”
15