Disconnect Battery (Final Tier 4 and Stage IV Engines)

IMPORTANT: Do not disconnect battery on machines equipped with Final Tier 4 engines until Light Emitting Diode (LED) on battery box has turned off. This indicates the diesel exhaust fluid (DEF) system purge is complete. If adequate time is not allowed for lines to be purged, any DEF remaining in lines can crystallize and plug lines. In freezing weather, DEF will freeze and possibly burst lines.