JLG 2658E3 Operator Manual - Manual (Page 57)

SECTION 4 - MACHINE OPERATION
3120877 – JLG Sizzor – 4-1
SECTION 4. MACHINE OPERATION
4.1 DESCRIPTION
This machine is a self-propelled aerial work platform on
top of an elevating scissor mechanism. The Scissor Lifts
intended purpose is to position personnel with their tools
and supplies at positions above ground level. The
machine can be used to reach work areas located above
machinery or equipment positioned at ground level.
The JLG Scissor Lift has a primary operator Control Sta-
tion in the platform. From this Control Station, the operator
can drive and steer the machine in both forward and
reverse directions, raise and lower the platform and, if
equipped, operate the powered deck extension. The
machine has a Ground Control Station which will override
the Platform Control Station. Ground Controls operate lift
up and down. Ground Controls are to be used only in an
emergency to lower the platform to the ground should the
operator in the platform be unable to do so. Vibrations
emitted by these machines are not hazardous to an oper-
ator in the work platform. The equivalent continuous A-
Weighted sound pressure level at the work platform is less
than 70 dB(A).
Instructions and hazard warnings are posted adjacent to
both operator control stations and at other places on the
machine. It is extremely important that operators know
what instructions and warnings are placed on the
machine, and review these periodically so that they are
fresh in their minds.
The JLG Scissor Lift is designed to provide efficient and
safe operation when maintained and operated in accor-
dance with warnings on the machine, the Operating and
Safety Manual, the Service and Maintenance Manual and
all jobsite and government rules and regulations. As with
any type of machinery, the operator is very important to
efficient and safe operation. It is absolutely necessary that
the JLG Lift be regularly maintained in accordance with
this manual and the machine Service and Maintenance
Manual, and that any evidence of lack of maintenance,
malfunction, excessive wear, damage or modification to
the machine be reported immediately to the machine
owner or the jobsite supervisor or safety manager and that
the machine be taken out of service until all discrepancies
are corrected.
The JLG Scissor Lift is not intended to be used to lift mate-
rial other than supplies which personnel in the platform
require to do their job. Supplies or tools which extend out-
side the platform are prohibited. It must not be used as a
forklift, crane, support for overhead structure, or to push
or pull another object.
The JLG Scissor Lift is powered using hydraulic motors
and cylinders for the various machine motions. The
hydraulic components are controlled by electrically acti-
vated hydraulic valves using switches and control levers.
The speeds of functions controlled by control levers are
variable from zero to maximum speed, depending upon
the position of the control lever. Functions controlled by
toggle or push-button switches are either on or off. In
some instances, a function switch can be used in conjunc-
tion with the joystick to give the machine a higher function
speed range.
The JLG Scissor Lift is a two wheel drive machine with
drive power being supplied by a hydraulic motor for each
drive wheel. The rear wheels are supplied with spring
applied, hydraulically released brakes. These brakes are
automatically applied any time the drive joystick is
returned to the neutral position.
The platform capacity of each scissor lift model is as fol-
lows:
Model 1532E3 - 270 kg
Model 1932E3 - 230 kg
Models 2033E3 / 2646E3 - 340 kg
Models 2046E3 / 2658E3 - 450 kg
The weight in the platform should be uniformly distributed
in the center of the platform. The total combined weight of
personnel, tools and supplies must not exceed the above
figures.
Operators should refer to the specific capacity of the indi-
vidual scissor lift indicated on the warning decals, paying
particular attention to any wind related restrictions which
may apply.
The platform may be raised only when positioned on firm,
level and uniform surfaces.
4.2 GENERAL
This section provides the necessary information needed
to operate the machine. Included in this section are the
procedures for starting, stopping, traveling, steering, park-
ing, platform loading and transporting the machine. It is
important that the user read and understand the proper
procedures before operating the machine.
4.3 MOTOR OPERATION
Power Selector Switch
The Power Selector switch functions to direct battery
power to the desired control station. With the switch in the
ground position, battery power is supplied to the emer-
gency stop switch at the ground control station. When the
switch is in the platform position, battery power is sup-