JLG 340AJ Operation And Safety Manual page 45

NOTE: When the Platform/Ground Select Switch is in the center posi-
tion, power is shut off to the controls at both operating stations.
Remove the key to prevent the controls from being actuated. .
4. Platform/Ground Select Switch
The three position, key operated switch supplies power to
the platform control console when positioned to PLATFORM.
With the switch key turned to the GROUND position only
ground controls are operable.
5. Telescope Control
Provides extension and retraction of the boom.
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SECTION 3 - MACHINE CONTROLS AND INDICATORS
6. Main Boom Lift
Provides raising/lowering of the main boom when position-
ing up or down.
7. Tower Boom Lift
Provides raising and lowering of the tower boom.
8. Swing
Provides 355 degrees non-continuous turntable rotation.
– JLG Lift – 3-5