C-5.2.1 Description Of The Controls - Genie GTH-3512 Operator's Manual

C-5.2 LOAD LIMITING SYSTEM
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On the front top strut of the cab, there is the load limiter
which warns the operator of the variation of
longitudinal stability of the machine and blocks any
manoeuvre of the same before reaching a critical
condition.

C-5.2.1 Description of the controls

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1 Calibration selection button
2 Display
3 Overload warning system LED-bar
4 Green light – power OK
5 Yellow light – calibration mode
6 Calibration confirmation button
7 Not used
8 Red light – outrigger position
9 Buzzer ON/OFF pushbutton
10 Red light – overload pre-alarm – alarm
The digit on display 2 shows the selected attachment
or the alarm code.
C-5.2.2 Operation
■
When power is turned on, light 4 comes on. The display
2 remains off and the monitoring system runs a self-
test before displaying digit 0 to warn that the system is
activated.
During operation, the led-bar 3 lights up gradually
depending on the variation of stability.
Green LED's: during normal operation when the
percentage of overturning moment is
between 0 and 89, these LED's are
ON. The machine is stable.
Yellow LED's: they light up when the machine tends
to overturn and the percentage of
overturning moment with respect to
the threshold value is between 90 and
100. The system enters the pre-alarm
mode, light 10 flashes and the buzzer
sounds with an intermittent sound.
Red LED's:
risk of overturning: the percentage of
overturning moment is above 100 with
respect to the threshold value.
The machine enters the alarm mode:
light 10 is lit, the buzzer sounds
continuously and any dangerous
manoeuvre is blocked. The operator
can only retract the load (lift and retract
the boom).
Handler with telescopic boom GTH-3512
OPERATING INSTRUCTIONS
The moment limiting system must not be used to
check the load to be handled: it has only been
designed to signal possible unbalances of the
machine.
Such unbalances may also be caused by an abrupt
operation of the levers during the load handling. If,
during work, several indicators light up, try to
operate the levers more smoothly.
Example of use of the load limiting system
C - 28
Page
Document 57.0008.7200 - 05/2007
DANGER
Boom extension
without outriggers
Overload warning
system in alarm
Boom retraction
Alarm ceases
Use of the outriggers
or reduction of the load
to be handled
Courtesy of Crane.Market