Electrical system – JLG 4017RS Service Manual User Manual
Page 180
Electrical System
9-28
3614RS, 4017RS
b. Field Calibration
To calibrate the LSI, certain conditions must be met:
• The sensor must be installed according to Section
• The test weight matches the model being calibrated in
the table shown on page 9-52.
• The calibration shall be conducted with standard
carriage and forks attached to the machine.
• While utilizing the LSI override button, 10 times lift and
lower the boom stopping suddenly to induce the rear
axle to bounce.
Note: If the test weight is not known, follow steps 1 & 2.
1. With the estimated test weight on the forks, start the
machine and extend the boom horizontally until the
machine starts to tip. This point should be at an
extension of Xtip (1) of the second boom section. If the
machine is not tipping at this extension, weight needs
to be added or removed from the forks.
2. By confirming that the machine tips at this point, the
correct amount of weight is now on the forks.
3. The machine control system must be powered on for at
least 10 minutes before calibration.
4. The machine must be on a level surface with the wheels
steered straight and park brake OFF. Drive the machine
forward over a distance of at least 2 m (6.5 ft) before
entering a calibration point.
5. Lower the outriggers, place test weight on ground,
apply park brake and shut engine OFF. Do Not move
machine.
Field Calibration Procedure:
Note: The following procedure must be completed within 30
minutes of starting the procedure.
1. With ignition key in OFF position, press and hold
SYSTEM CHECK button on LSI display and turn ignition
key to engine START position. Release the ignition key
when engine start is achieved, but continue to hold
SYSTEM CHECK button on LSI display until the orange
LED on LSI display goes out and buzzer sounds
(approximately 3 seconds). Release SYSTEM CHECK
button.
2. The LEDs will perform a sequence. When only the third
green LED illuminates, press the SYSTEM CHECK button.
3. The first green LED then illuminates. With no
attachment and boom retracted, lift boom fully.
4. Press the SYSTEM CHECK button on the LSI display and
release. The first 3 green LEDs will illuminate. The third
then second green LEDs will go out as the calibration
point is recorded.
5. The first green LED goes out and buzzer sounds then
the red LED illuminates.
6. Lower boom and without moving the machine, pick up
the proper test weight (W) listed in the table. Pressing
the LMI Override button may be required to lower the
boom.
7. With the boom horizontal, slowly extend the boom to
the distance of Xcal (2). The proper calibration weight is
now on the rear axle and the LSI can now be calibrated.
8. Press the SYSTEM CHECK button on the LSI display and
release. As the calibration point is recorded, buzzer
Model
Test Weight (W)
Xtip (1)
Xcal (2)
3614RS
1000 kg (2205 lb)
2509 mm
(99 in)
1916 mm
(75 in)
4017RS
1000 kg (2205 lb)
2837 mm
(81 in)
1713 mm
(67 in)
A
B
C
A
B
C
D
MZ8270
1
4017RS
3614RS
1
A
B
C
A
B
C
D
MZ8270
2
2
3614RS
4017RS