SECTION 3 – MACHINE CONTROLS, INDICATORS AND OPERATION
3-34
– JLG Lift–
- An incorrect play (see the Service Manual).
IF THE SLACK CHAIN ALARM HAS BEEN TRIGGERED BY THE MAST JAMMING,
FAILURE TO RESPECT THE PROCEDURES BELOW CAN CAUSE SERIOUS INJU
-
RIES.
DO NOT USE MANUAL DESCENT CONTROLS.
Once it has been determined that the slack chain is not due to
the platform resting on an obstacle, proceed in the following
manner:
- If the alarm is still active and if safe to do so, raise the mast
slightly above previous position to deactivate it (and tension
the chains).
- Slew the superstructure so the jib can be lowered.
- Lower the jib.
- Try again to lower the mast.
- If the alarm is no longer actuated: fully lower the mast and get
qualified personnel to inspect the machine before it is used
again.
- If the mast has not released itself or if the alarm is still actu
-
ated, appropriate equipment can be used to remove plat
-
form occupants and stabilize motion of the machine.
IF THE SELF RESCUE PROCEDURE FAILED, DISCONTINUE OPERATION IMMEDI
-
ATELY.
DO NOT USE MANUAL DESCENT CONTROLS.
PLATFORM OCCUPANTS MUST BE RESCUED AND THE MAST MECHANISM SER
-
VICED BY A QUALIFIED TECHNICIAN.
Gate Opening Warning Light (8E XL Basket Only)
When one of the side gates is open, the RED warning indica
-
tor on the platform control console lights. All functions are
disabled. Close the gates to resume normal machine opera
-
tion.
SIDE GATES MUST NOT BE USED AS A MEANS FOR ACCESS TO AND EGRESS
FROM THE PLATFORM.
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