Operation - JLG 400SC Operation And Safety Manual

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6.
Recycle the footswitch and press the override button on the
platform control console.
7.
Continue to lower the platform. The machine should move
in the elevated drive speed mode (SkySense Status LED will
remain red).
NOTE:
The SkySense system will not stop machine operation while in
Creep.

Operation

SkySense slows a machine's drive speed to elevated drive speed
when it is a certain distance away from an object, known as the
"warning zone." If the machine continues to approach the object
and moves into the "stop zone," SkySense stops all machine func-
tions.
For proportional functions activated by the joystick, the size of
the warning zone varies based on the amount of joystick activa-
tion. The stop zone always activates at the same distance from
the object regardless of the joystick's position.
If the function has reached the warning zone, release and re-
engage to return to normal drive speed in the opposite direction.
If the machine has reached the SkySense stop zone, release the
function and recycle the footswitch to activate a function in the
opposite direction.
31215018
SkySense is active during the following functions:
• Boom Lift Up/Down
• Platform Rotate
• Telescope Out
• Swing
• Reverse Drive
NOTE:
During active Drive Orientation System (DOS), SkySense is active
when driving in both forward and reverse directions.
There are two LED indicators on the platform control box that sig-
nal SkySense activity.
• No LED: Normal operation.
• LED Flashing Yellow: Machine is in SkySense warning
zone and will reduce to elevated drive height speed. Flash
frequency correlates to closeness of object.
• LED Red: Machine is in SkySense stop zone and all
machine functions will cease.
• LED Flashing Red: SkySense sensor is obstructed or dam-
aged. Obstructions must be removed and proper function
verified. Damaged sensors must be replaced.
SECTION 6 - ACCESSORIES
6-13

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