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SECTION 4 - MACHINE OPERATION
Load Sensing System (LSS)
The Load Sensing System (LSS) senses pressure in the main lift
cylinder. If this pressure exceeds a pre-set level the following will
occur:
1. The overload warning indicator on the platform control
box will flash. (See the arrow below)
4-4
2. The audible warning will sound.
3. All normal movement will be prevented from both the
platform control box and the ground control box.
4. Engaging the manual descent system, located in the
valve compartment, will allow further movement.
IF ALL NORMAL MOVEMENT IS PREVENTED WITH NO AUDIBLE, OR
VISUAL SIGNAL, THERE IS A FAULT IN THE SYSTEM.
If this situation occurs, proceed as follows:
1. Return the platform to the retracted and lowered posi-
tion by means of the manual descent system located in
the valve compartment.
2. Disable the machine.
3. Have the fault assessed by a qualified JLG equipment
service technician before returning to normal operation.
– JLG Lift –
NOTICE
3121303
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