JLG 600SC_660SJC Operator Manual - Manual (Page 55)

SECTION 4 - MACHINE OPERATION
3121156 – JLG Lift – 4-1
SECTION 4. MACHINE OPERATION
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.
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 JLG Lift is a crawler track type machine with drive power
being supplied by a hydraulic motor for each final drive and
sprocket. Each final drive is equipped with a spring applied,
hydraulically released brake. The swing drive is also
equipped with such a brake. These brakes are automatically
applied any time the Drive or Swing control levers are
returned to the neutral position.