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Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure all personnel stand
clear while operating the aerial platform.
• Controls to position the platform are located on the
lower control panel on the turntable and on the upper
control panel in the platform.
• Controls to drive the aerial platform are located on
the upper control panel only.
Battery Disconnect Switch
The battery disconnect is located behind the cowling door
on the right side of the turntable (refer to Figure 6.1).
Battery Disconnect Switch
Figure 6.1 – Battery Disconnect Switch
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
connect the batteries 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.
• Place the switch in the off position to prevent unau-
thorized use of the aerial platform. If so equipped,
lock the battery disconnect switch in the off position.
Lower Controls
The lower controls (refer to Figure 6.2) are located on the
left side of the turntable. Boom and platform functions
can be operated from the lower controls. The following
are located on the lower control panel:
460SJ – 1433685
Chapter 6 – Controls
• Start/emergency power/ground operation switch
• Emergency stop button
• Controls selector switch
• Rotation switch
• Boom elevation switch
• Boom extension switch
• Jib articulation switch
• Platform level switch
• Platform rotation switch
• Platform overload/tilt warning light
• Hydraulic system warm-up switch (option)
Start/Emergency Power/Ground Operation Switch
This switch (refer to Figure 6.2) is used to operate three
machine functions. Engine start, activation of the emer-
gency power system, and enable of the machine functions
from the lower controls are all controlled with this switch.
Engine Start
The start switch (refer to Figure 6.2) function works like
an automobile ignition switch.
An alarm sounds when the switch is turned on to warn
others that the machine engine is being started.
• Before starting the engine, check the Diagnostic
Center LCD display window. WAIT TO START will be
displayed if the engine is cold and the engine heater
is on. The message may appear for 1 to 12 seconds,
depending on the engine and ambient air temperature.
• Do not start the engine until the wait message is no
longer displayed.
• If the engine turns over but does not start while the
WAIT TO START message is displayed, turn the
control selector switch to the middle/off position and
back to the lower controls position. Do not start the
engine until the wait message is no longer displayed.
• Hold the switch downward until the engine starts, then
release it to on.
• If the engine dies, the controls switch must be turned
to off before the engine can be restarted.
Emergency Power
The emergency power function is used to operate turnta-
ble, boom, and platform functions using the emergency
power system when the engine is off/disabled. The switch
is spring returned to the engine position for aerial platform
engine operation.
The emergency power system is for emergency low-
ering and stowing only. The length of time the pump
can be operated depends on the capacity of the bat-
teries. Do not use this system for normal operation.
Caution
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