JLG 723A Service Manual - Manual (Page 148)

Electrical System
9.40 L2906H, 2906H, 3507H, 619A, 723A, 29.6LP, 29.6, 35.7
9.15 LOAD STABILITY INDICATOR - LSI
L2906H, 2906H, 3507H, 29.6LP, 29.6 &
35.7 (Before S/N 1160005993
excluding 1160005943, 1160005945 &
1160005414)
9.15.1 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 (1) will illuminate when LSI power is on.
• When approaching forward stability limitations LEDs
progressively illuminate, green (2), then yellow (3)
and finally red (4).
• The warning buzzer sounds as the first red LED
illuminates.
• As the telehandler reaches forward stability
limitations and the second red LED illuminates, the
automatic function cut-out is activated. Certain
functions are disabled (i.e. boom lift, extend, etc).
Retract boom to re-enable functions.
• Press button (5) to disable the warning buzzer.
When disabled, yellow LED (3) will illuminate. If last
red LED illuminates, disable button is overridden and
warning buzzer sounds.
Test the LSI 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 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.
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.
Load Moment
Indicator
100 %
TEST
MZ5611
4
3
2
1
5
WARNING
TIP OVER HAZARD. If the green, orange and red
LEDs flash and warning buzzer sounds, retract and
lower boom immediately. Determine cause and
correct before continued use.