JLG T500J Operator Manual - Manual (Page 54)

SECTION 4 - MACHINE CONTROLS AND INDICATORS
4-10 – JLG Lift – 3121197
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.
12. Engine Start (if equipped).
To start the engine, the switch must be pushed in until the
engine starts.