JLG 1850SJ Operation & Safety Manual page 46

Machine Controls and Indicators
3.3.1 Ground Control Station Functions
When operating the boom ensure there are no personnel around or under
platform.
To avoid serious injury, do not operate machine if any control levers or toggle
switches controlling platform movement do not return to the off or neutral position
when released.
Note: When machine is shut down the Platform/ Ground Select switch and Emergency Stop must
be positioned to Off.
To operate machine from the platform, the Platform/Ground Select switch must be turned to
the blue square.
To operate the machine from the ground, the Platform/Ground Select switch must be turned
to the purple square.
Air Shutoff Valve (ASOV) (If Equipped)
The red LED ASOV light indicates when the valve has been actuated.
Boom Control System Test Button
The push button is used to test the boom control system and confirm that is working properly.
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WARNING
WARNING
31222393 1850SJ