JLG 723A Service Manual - Manual (Page 153)

9.45 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
Electrical System
9.16.2 LSI Sensor
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.
The LSI sensor (7) is bolted on the top left of the rear axle.
a. LSI 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. Disconnect the LSI electrical connector.
6. Loosen, remove and discard the two bolts holding
the LSI assembly to the rear axle.
7. 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 excessive degreasing agent and allow
to dry.
4. Apply a thin film of Loctite ® 638 TM adhesive to the flat
metal surface of the sensor, ensuring the adhesive is
spread evenly over the entire surface.
Note: Follow all adhesive manufacturer’s
recommendations including storage life.
5. Fit the sensor, ensuring the lead exits in the corner
direction. Secure with two bolts - Socket HD
Capscrew M10x35x1.5, Grade 12.9.
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).
6. Permanently mark position of bolt head and sensor
body.
7. Leave the machine undisturbed 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.”
MZ5621
7