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extend. At this stage the system solely controls the setting of
the outriggers to level the chassis.
NOTICE
ALWAYS BE SURE THAT THE OPERATING SURFACE THE MACHINE IS
TO BE USED ON IS FIRM AND FREE OF ANY VOIDS OR OBSTRUCTIONS
THAT MAY CAUSE THE OUTRIGGERS TO NOT PERFORM PROPERLY.
To retract the outriggers activate the function "lowering" with
the joystick. As soon as all outriggers are completely
retracted the maximum hydraulic pressure will be reached at
which time the machine will be okay to drive.
4.5
DRIVING THE MACHINE FROM THE
PLATFORM
To activate the drive of the machine, the controller (joystick) has to
be moved forward for forward-drive and back for reverse-drive.
The controller has a neutral zone of about ± 7% of the total possi-
ble moving distance. After reaching the end of the neutral zone,
the valves "drive, brake and motion alarm" will be activated. The
machine starts to move.
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4.6
STEERING
The steer function is operated by activating the rotary steer
switch in the direction indicated by the symbols on the con-
trol panel.
4.7
HYDRAULIC PLATFORM EXTENSION
With the lift/drive/extension switch in the extension position, the
platform can be hydraulically extended.The function is activated
by moving the controller forward to extend and backwards to
retract.
4.8
EMERGENCY LOWERING - MANUAL
DESCENT
All control switches have to be set to the neutral position.
After that, the emergency lowering valve, which is located on
the lift cylinder, can be opened hydraulically by a hand pump
located inside the hydraulic compartment. Once the lowering
is completed all levers of the emergency lowering function
have to be put into the neutral position. Refer to Section 5,
Emergency Procedures, for instructions on manual lowering.
– JLG Lift –
SECTION 4 - MACHINE OPERATION
4-7
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