JLG 4017 Operator Manual - Manual (Page 40)

Section 2 - Pre-Operation and Controls
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Ignition
• Position 0 - Engine off
• Position 1 - Engine preheat at temperature below 0°C. Wait until icon on display
screen goes out.
• Position 2 - Prohibits rotating key switch to position 3 in the event the engine
does not start. Rotate the key to position 0 then back to position 3 to re-engage
the starter.
• Position 3 - Engine start.
0
1
2
3
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