JLG T500J Operation And Safety Manual page 54

SECTION 4 - MACHINE CONTROLS AND INDICATORS
11. Function Controller
Controls boom functions (Platform Level, Lift, Swing, Jib Lift,
Telescope, Outriggers, Drive, and Steer) depending upon the
position of the Function Selector Switch.
4-10
12. Engine Start (if equipped).
To start the engine, the switch must be pushed in until the
engine starts.
– JLG Lift – 3121197