Controls and Indicators
S3219E/S3220E/S3226E/S4726E/S4732E – 1500842
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Figure 4 – Diagnostic Center LCD Display
The LCD display shows the accumulated aerial platform
operating time and the available battery power to operate
the machine, when the battery disconnect and emergency
stop switch are in the on position.
Battery Disconnect Switch
The battery disconnect switch is located at the rear of the
chassis (refer to Figure 2).
The battery disconnect removes electrical power from all
electrically controlled functions when in the off position.
Place the switch in the on position to electrically con-
nect the battery to the electrical system.
Caution
Only authorized personnel should operate the aerial
platform. Unqualified personnel may cause injury
to coworkers or property damage. Lock the battery
disconnect switch in the off position before leaving
the aerial platform unattended.
Lock the battery disconnect switch in the off position
to prevent unauthorized use of the aerial platform.
Lower Controls
The lower controls (refer to Figure 2) are located at the
rear of the chassis. Only platform functions can be oper-
ated from the lower controls.
The following are located on the lower control panel:
Emergency stop button
Control selector/ground operation switch
Platform raise/lower switch
Platform overload protection light
Emergency Stop Button
The emergency stop is a two-position red push button.
Push the button inward to disconnect power to all
control circuits.
Twist the button to restore power.
Control Selector/Ground Operation Switch
Insert the key into the control selector/ground operation
switch.
In the upper position, aerial platform functions will not
operate from the lower or upper controls.
Turn the switch to the upper controls position to operate
the aerial platform functions from the upper controls.
Hold the switch downward continually in the lower con-
trols position to enable the platform raise/lower switch
functions. The switch is spring returned to the off position.
The upper controls will not operate while the control
selector is in the lower position.
Platform Raise/Lower Switch
The platform raise/lower switch is used to raise or lower
the platform. The switch is spring returned to the center
off position.
Hold the switch upward to raise the platform.
Hold the switch downward to lower the platform.
An alarm will sound as the platform lowers.
Upper Controls
The upper controls (refer to Figure 3) are located on the
control panel at the platform. Platform and drive functions
can be operated from the upper controls.
Warning
The potential for an accident increases from improp-
erly driving or steering the aerial platform. Death or
serious injury could result from such accidents. Make
sure the upper control panel is securely fastened in-
side the platform and facing the front of the machine.
Avoid driving the platform with the upper controls facing
the rear or side of the machine. In this position the ma-
chine is difficult to control because the drive and steer
control movements and their resulting machine move-
ments will not correspond.
Only operate the upper controls when the upper control
panel is securely fastened inside the platform and facing
the front of the machine.
The following are located on the upper control panel:
Emergency stop button
Drive/lift selector switch
Drive range switch – S3220E/S3226E/S4726/S4732E
Joystick to control platform lift, drive, and steer
Horn button
Battery condition indicator
Platform overload protection light