JLG EC450AJ Operation & Safety Manual page 42

Machine Controls and Indicators
Platform Rotate
Provides rotation of the platform.
Platform / Ground Select Switch
The three position, key operated switch supplies power to the platform con-
trol console when positioned to Platform. With the switch key turned to the
Ground position only ground controls are operable.
Note: When the Platform/Ground Select Switch is in the center position, power is shut off to the
controls at both operating stations. Remove the key to prevent the controls from being
actuated.
Power / Emergency Stop Switch
A two-position red mushroom shaped switch supplies power to Platform/
Ground Select switch when pulled out (On position). When pushed in (Off
position), power is shut off to the Platform / Ground Select switch.
Note: When the Platform / Ground Select Switch is in the center position, power is shut off to the
controls at both operating consoles. Remove the key to prevent the controls from being
actuated.
Always position emergency stop switch to the Off position (pushed in) when
machine is not in use.
Swing
Provides 355 degrees non-continuous turntable rotation.
Tower Boom Lift
This switch provides raising and lowering of the tower boom.
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NOTICE
31219187 EC450AJ, EC520AJ