JLG 3246E2 ANSI Operator Manual - Manual (Page 51)

SECTION 4 - MACHINE OPERATION
3120736 – JLG Lift –
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
Lift’s 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, and raise and lower the platform. 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 for pre
operational check and in an emergency to lower the plat-
form to the ground or retract the platform extension
should the operator in the platform be unable to do so.
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. Vibrations emitted by these machines
are not hazardous to an operator in the work platform.
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. Owner/User/Operator must
be familiar with section 6,7,8 of ANSI A92.6-1999. It is
absolutely necessary that the JLG Lift be regularly main-
tained in accordance with this manual and the machine
Service and Maintenance Manual, and that any evidence
of lack of maintenance, malfunction, excessive wear, dam-
age or modification to the machine be reported immedi-
ately to the machine owner or the jobsite supervisor or
safety manager and that the machine be taken out of ser-
vice 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 drive speeds are controlled by a toggle switch from
low to high speed. Functions controlled by toggle or
push-button switches are either on or off.
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 controller (joy-
stick) is returned to the neutral position.
The weight in the platform should be uniformly distributed
in the platform. The total combined weight of personnel,
tools and supplies must not exceed the figures in Figure
4-1, Operating Specificatoins.
NOTE: The platform may be raised only when positioned on
firm, level and uniform surfaces.