1 load stability indicator, Load stability indicator, Warning – JLG 4013PS Service Manual User Manual
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Electrical System
9-38
3508PS, 3509PS, 3512PS, 3513PS, 4008PS, 4009PS, 4012PS, 4013PS, 4017PS, 40.8, 40.9
11. Press the TEST button on the LSI display and
release. The top red LED should flash for
approximately 8 seconds while the calibration point
is read. Following successful calibration of the
second point, the buzzer will be on constant, the red
LED will be turned off, and the green power LED will
be on constant.
12. Disengage the test weight and fully retract the boom.
Turn the ignition key to OFF. LSI is now calibrated.
13. Verify proper operation of the LSI System:
• Start the machine with no load, fully retract and level
the boom. Do Not raise the boom.
• Level the machine.
• Press the test button on the LSI display. All LEDs will
flash and the audible warning will sound.
• The system is functioning properly.
9.16
LOAD STABILITY INDICATOR (LSI) -
8, 9, 12 & 13M S/N 1160005993 & After
including 1160005949 & 1160005950
17M S/N 1160005937 & After
excluding 1160005952, 1160005960,
1160005963, 1160005966 &
1160005978
9.16.1
Load Stability Indicator
Note: The Load Stability Indicator is NOT a serviceable
item. The LSI must be inspected and/or replaced by a
qualified dealer or a JLG technician.
The LSI provides visual and audible indication of forward
stability limitations when machine is static on firm, level
surface.
• Green LED (9) will illuminate when LSI power is on.
• When approaching forward stability limitations LEDs
progressively illuminate, green (10), then orange
(11) and finally red (12).
• If the red LED illuminated the warning buzzer also
sounds.
The LSI has two modes:
Active Mode (8, 9, 12, 13 & 17M)
• As the telehandler reaches forward stability
limitations and the red LED illuminates, the
automatic function cut-out is activated. All boom,
frame level and outrigger functions are disabled
except boom retract (CE & AUS) and boom lift (CE).
Retract boom to fully re-enable functions.
WARNING
TIP OVER HAZARD. The LSI considers only
longitudinal stability limitations, observe all operating
parameters. Failure to follow operating parameters of
the telehandler could damage the equipment and/or
cause tip over.
MZ6120
12
11
10
13
9
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