JLG EMERGENCY DESCENT – ARTICULATED – 520AJ

Platform or Boom Caught Overhead If the platform or boom becomes jammed or snagged in overhead structures or equipment, do the following:

1. Shutoff the machine.
2. Rescue all people in the platform before freeing the machine. Personnel must
   be out of the platform before operating any controls on the machine.
3. Use cranes, forklifts, or other equipment to stabilize motion of the machine to
   prevent a tip over as required.
4. From the ground controls, use the Auxiliary Power System (if equipped) to
   carefully free the platform or boom from the object.
5. Onceclear, restart the machine and return the platform to a safe position.
6. Inspect the machine for damage. If the machine is damaged or does not
   operate properly, turn off the machine immediately. Report the problem to the
   proper maintenance personnel. Do not operate the machine until it is declared
   safe for operation.

From the ground controls Using The Auxiliary Power System For Emergency Descent

1. Set Platform/Ground Select to GROUND.
2. Pull Power/Emergency Stop ON.
3. Operate and hold the required function control.
4. Hold the Auxiliary Power switch ON.
5. Release the Auxiliary Power switch and function control.
6. Turn Power/Emergency Stop OFF.

JLG states that on auxiliary power only one function should be operated at a time

From the platform controls Using The Auxiliary Power System For Emergency Descent

1. Set Platform/Ground Select to PLATFORM.
2. Pull Power/Emergency Stop ON.
3. Depress and hold the footswitch.
4. Operate and hold the required function control.
5. Hold the Auxiliary Power switch ON.
6. Release the Auxiliary Power switch, function control and footswitch.
7. Turn Power/Emergency Stop OFF.

JLG states that on auxiliary power only one function should be operated at a time