JLG 1250AJP Operation & Safety Manual page 118

Accessories
5. Ensure the area below the platform is clear of obstructions and lower the
platform. The machine should slow down, (SkySense Status LED will blink yellow
with increasing frequency) and stop, (SkySense Status LED will be illuminated solid
red) when the bottom of the platform is approximately 12 inches from the
ground. The alarm should sound if it is not muted (refer to SkySense Alarm).
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.
6.15.2 Operation
SkySense slows a machine's function to creep 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 functions.
For proportional functions activated by the joystick, the size of the warning zone varies
based on the amount of joystick activation. 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, normal drive speed will resume when a
function is activated 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.
SkySense is active during the following functions:
• Lift Up/Down (including jib functions)
• Platform Rotate (including jib rotate)
• Telescope Out
• Swing
• Reverse Drive
Note: During active DOS (Drive Orientation System), SkySense is active when driving
in both forward and reverse directions.
There are two LED indicators on the platform control box that signal SkySense activity.
• No LED: Normal operation.
• LED Flashing Yellow: Machine is in SkySense warning zone and will reduce function
speed to creep. Flash frequency correlates to proximity of object.
• LED Red: Machine is in SkySense stop zone and all machine functions will cease.
• LED Flashing Red: SkySense sensor is obstructed or damaged. Obstructions must be
removed and proper function verified. Damaged sensors must be replaced.
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31222384 1250AJP