JLG 20VP (3120727) Operator Manual - Manual (Page 45)

SECTION 6 - EMERGENCY PROCEDURES
3120727 – JLG Lift – 6-1
SECTION 6. EMERGENCY PROCEDURES
6.1 GENERAL INFORMATION
This section provides information on procedures to be fol-
lowed, and systems and controls to be used in the event
an emergency situation is encountered during machine
operation. Prior to operation of the machine and periodi-
cally thereafter, the entire operating manual, including this
section, should be reviewed by all personnel whose
responsibilities include any work or contact with the
machine.
6.2 EMERGENCY CONTROLS AND THEIR
LOCATION
CHECK MACHINE DAILY TO MAKE SURE EMERGENCY STOP
SWITCHES ARE IN PLACE AND OPERATIONAL. AND THAT
APPLICABLE INSTRUCTIONS ARE IN PLACE AND LEGIBLE.
Platform Emergency Stop Switch
This (RED) button is located on the platform joystick con-
troller box and, when depressed, will immediately stop the
machine from the platform.
Ground Emergency Stop Switch
The ground emergency stop switch (RED) button is
located inside the rear cover (upper access hole) beside
the power ON/OFF/GRND key switch. When depressed, it
will immediately stop the machine.
Manual Descent Knob
The manual descent knob is used in the event of either a
total power failure, or if the operator in the platform cannot
lower the platform himself. The manual descent knob
(RED knurled) is located on the electric/hydraulic pump-
motor unit inside the rear cover (lower access hole, just
above the hydraulic reservoir). To lower the platform, turn
the manual descent knob counterclockwise opening the
valve. Turn the knob clockwise to stop descent or to close
the valve. (The platform will be lowered, unpowered, using
gravity.)
6.3 EMERGENCY OPERATION
Use of Ground Controls
KNOW HOW TO USE THE GROUND CONTROLS IN AN EMER-
GENCY SITUATION.
BEFORE TOUCHING ANY PART OF THE MACHINE IN AN EMER-
GENCY SITUATION, FIRST DETERMINE IF MACHINE IS IN CON-
TACT WITH OR IN CLOSE PROXIMITY TO AN ELECTRICALLY
CHARGED CONDUCTOR. THIS MACHINE DOES NOT PROVIDE
PROTECTION FROM CONTACT WITH OR PROXIMITY TO AN
ELECTRICALLY CHARGED CONDUCTOR. (SEE ELECTROCUTION
HAZARD, SECTION 1-3.)
Ground personnel must be thoroughly familiar with the
machine operating characteristics and the ground control
functions (see Section 3-4. “Controls and Indicators”).
Training should include operation of the machine, review
and understanding of this section and hands-on operation
of the controls in simulated emergencies.
Operator Unable to Control Machine
IF THE PLATFORM OPERATOR IS UNABLE TO OPERATE OR
CONTROL THE MACHINE FOR ANY REASON, USE THE FOLLOW-
ING INSTRUCTIONS AS A GUIDELINE.
1. Operate the machine from the ground controls
ONLY with the assistance of other personnel and
equipment (cranes, overhead hoists, etc.) as may be
required to safely remove the danger or emergency
condition.
2. DO NOT CONTINUE OPERATION IF CONTROLS
DO NOT FUNCTION NORMALLY.
3. Cranes, forklift trucks or other equipment which may
be available are to be used to help remove the plat-
form occupant and stabilize motion of the machine
in case machine controls are inoperable or platform
cannot be lowered with the emergency/manual
decent valve.
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