SECTION 5 - EMERGENCY PROCEDURES
5-14
– JLG Lift –
3121773
Using Emergency Descent In Case Of An Outrigger Losing
Contact With The Ground
One or more of the outriggers may loose contact with the
ground which will result in the platform/remote control box
functions being inoperable except for emergency lowering.
To restore platform/remote control box functions, lower and
retract the booms and then reposition the machine and
properly set the outriggers.
Use the emergency descent from the platform if possible by
using the following sequence, fully retract main boom, fully
lower jib, fully lower tower boom, and fully lower main
boom.
If this is not possible, have a properly trained person on the
ground bypass the platform safety devices and allow the
operator in the platform to lower and retract the booms or
allow emergence manual operations to bring the platform
back to the ground.
1.
Locate and use safety device bypass key as stated
above.
2.
Activate safety device bypass by turning key in a
counterclockwise direction and hold it in position
(see decal).
3.
The safety devices BYPASS icon will
appear on the platform/remote con-
trol box display.
4.
Operate the machine from the platform/remote
control ONLY carrying out operations that allow
the tower boom lowering, main boom retract and
jib lowering. The main boom must be fully
retracted prior to operating swing and main boom
lowering functions.
NEVER PERFORM OPERATIONS DIFFERENT TO THOSE LISTED OR THAT CAN
IN SOME WAY REDUCE THE STABILITY OF THE MACHINE. THE ORDER OF THE
BOOM MOVEMENTS MUST BE DONE IN A WAY TO PREVENT ANY OPERATION
THAT REDUCES THE STABILITY OF THE MACHINE.
5.
Once booms and jib are fully lowered and aligned,
release the key and follow instructions above to
secure the key.
If machine is set up in the reduced stabilization area, bypass-
ing the safety devices does not allow the boom to go out of
the working area related to that outrigger configuration.
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