JLG 3246E2 ANSI Operator Manual - Manual (Page 59)

SECTION 5 - EMERGENCY PROCEDURES
3120736 – JLG Lift –
5-1
SECTION 5. EMERGENCY PROCEDURES
5.1 GENERAL
This section provides information on the procedures to be
followed and on the systems and controls to be used in
the event an emergency situation is encountered during
machine operation. Prior to operation of the machine and
periodically thereafter, the entire operating manual,
including this section, should be reviewed by all person-
nel whose responsibilities include any work or contact
with the machine.
5.2 EMERGENCY TOWING PROCEDURES
Although towing the machine is prohibited, provisions for
moving the machine, in case of a malfunction, power fail-
ure, or for loading on a truck, have been incorporated.
The following procedures are to be used ONLY for emer-
gency movement to a suitable maintenance area or to
load the machine on a truck. These procedures are also
found on a decal affixed to the frame at the rear of the
machine.
1. Chock the wheels securely.
2. Turn the black knob on the main control valve coun-
terclockwise all the way out to disengage the drive
motors.
3. Using a 3/4 in wrench, release the parking brake by
moving the brake cams to the horizontal position.
4. Using suitable equipment for assistance, remove the
chocks, and move the machine to an appropriate
maintenance area or onto the truck.
After moving the machine, complete the following pro-
cedures:
1. Position the machine on a firm, level surface.
2. Chock the wheels securely.
3. Using a 3/4 in wrench, engage the parking brake by
moving the brake cams to the vertical position.
4. Turn the black knob on the main control valve clock-
wise all the way in to engage the drive motors.
5. Remove the chocks from the wheels.
5.3 EMERGENCY CONTROLS AND THEIR
LOCATIONS
Emergency Stop Switch
These large red buttons, one located at the Ground Con-
trol Station and one at the Platform Control Station, will
immediately stop the machine when depressed.
CHECK MACHINE DAILY TO MAKE SURE EMERGENCY STOP
BUTTON IS IN PLACE AND THAT GROUND CONTROL INSTRUC-
TIONS ARE IN PLACE AND LEGIBLE.
Power Selector Switch
The key-operated POWER SELECT switch, located at the
Ground Control Station, can also be used to shut down
the machine in an emergency situation. To shut off
machine power, turn the POWER SELECT switch to the
center OFF (O) position.
Ground Control Station
The Ground Control Station is located on the left side of
the machine frame. The controls on this panel provide the
means for overriding the platform controls and for control-
ling the platform lift up and down functions from the
ground. Place the power select switch in the ground posi-
tion and operate the lift switch to lift up or down.
Manual Descent
The manual descent valve is used, in the event of total
power failure, to lower the platform using gravity. The
manual descent handle is located at the rear of the
machine behind the ladder on the 1932E2 and 2032E2.
Pulling the manual descent handle opens the valve spool,
lowering the platform.
The 2646E2/3246E2 may be equipped with either a man-
ual descent lever or a manual decent pump, both located
at the rear of the machine behind the ladder. If your
2646E2 or 3246E2 is equipped with a manual descent
lever. Pushing the manual descent lever opens the valve
spool, lowering the platform. If your 2646E2 or 3246E2 is
equipped with a manual pump, operate as follows:
1. Turn knob (clockwise) on lowering valve untill fully
closed
2. Install handle, and pump until holding valve opens
and desired descent speed is attained.
3. When platform is fully lowered, turn knob on lower-
ing valve (counterclockwise) to reopen valve and
return handle to stowed position.