Section 4. Machine Operation; Description; Operating Characteristics And Limitations; Capacities - JLG 800A Operation And Safety Manual

4.1

DESCRIPTION

This machine is a self-propelled hydraulic lift equipped with a
work platform on the end of an elevating and rotating boom.
Vibrations emitted by these machines are not hazardous to
an operator in the work platform. The equivalent continuous
A-Weighted sound pressure level at the work platform is less
than 70dB(A).
The primary operator control station is in the platform. From
this control station, the operator can drive and steer the
machine in both forward and reverse directions. The opera-
tor can raise or lower the upper or lower boom or swing the
boom to the left or right. Standard boom swing is 360 degree
continuous left and right of the stowed position. The machine
has a Ground Control Station which will override the Platform
Control Station. Ground Controls operate Boom Lift and
Swing, and are to be used in an emergency to lower the plat-
form to the ground should the operator in the platform be
unable to do so. The Ground Control is also to be used in
Pre-Start Inspection.
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SECTION 4. MACHINE OPERATION

4.2

Capacities

Stability

– JLG Lift –
SECTION 4 - MACHINE OPERATION
OPERATING CHARACTERISTICS AND
LIMITATIONS
The boom can be raised above horizontal with or without any
load in the platform if:
1. Machine is positioned on a smooth, firm and level sur-
face.
2. Load is within manufacturer's rated design capacity.
3. All machine systems are functioning properly.
4. Proper tire pressure exists in the tires.
5. Machine is as originally equipped from JLG.
Machine stability is based on two positions which are called
FORWARD STABILITY and BACKWARD STABILITY. The
machine position of least forward stability is shown in Figure
4-1. and its positions of least backward stability is shown in
Figure 4-2.
4-1