Fourth Edition • Fourth Printing Operator's Manual
Work Area Safety
Do not raise the platform
unless the machine is on a
firm, level surface.
Do not push off or pull
toward any object outside
of the platform.
Do not depend on the tilt alarm as a level indicator.
The tilt alarm sounds on the chassis only when the
machine is on a severe slope.
If the tilt alarm sounds:
Lower the platform. Move the machine to a firm,
level surface. If the tilt alarm sounds when the
platform is raised, use extreme caution to lower
the platform.
Do not alter or disable the limit switches.
Do not drive over 0.7 mph / 1.1 km/h with the
platform raised.
Do not use the platform controls to free a
platform that is caught, snagged or otherwise
prevented from normal motion by an adjacent
structure. All personnel must be removed from
the platform before attempting to free the
platform using the ground controls.
Maximum allowable side force - ANSI and CSA
GS-3384
350 lbs / 1557 N
GS-3390
350 lbs / 1557 N
GS-4390
350 lbs / 1557 N
GS-5390
300 lbs / 1335 N
Maximum manual force –
Australia 90 lbs / 400 N
Do not use the machine as a crane.
Do not push the machine or other objects with
the platform.
Do not contact adjacent structures with the
platform.
Do not tie the platform to adjacent structures.
Do not place loads outside the platform perimeter.
Do not raise the platform when wind speeds may
exceed 28 mph / 12.5 m/s. If wind speeds exceed
28 mph / 12.5 m/s when the platform is raised,
lower the platform and do not continue to operate
the machine.
Part No. 133564 GS-3384 • GS-3390• GS-4390• GS-5390 13