Diesel Particulate Filter (DPF)—Final Tier 4/Stage IV Engine

Service beyond automated exhaust filter cleaning requires special tools and procedures. See appropriate additional information in this Operator’s Manual section.

Automatic DPF cleaning generates very high temperatures. Disable exhaust filter cleaning in conditions where it may be unsafe for elevated exhaust temperatures.

When exhaust filter and warning light indicators are illuminated:

• Ensure exhaust filter cleaning is set to Auto. See Exhaust Filter System Overview—Final Tier 4/Stage IV Engine and Auto Exhaust Filter Cleaning Mode—Final Tier 4/Stage IV Engine in Emissions Equipment section of this Operator’s Manual.
• Perform parked exhaust filter cleaning (if system allows). See Parked Exhaust Filter Cleaning—Final Tier 4/Stage IV Engine in Emissions Equipment section of this Operator’s Manual.

If exhaust filter cleaning is set to auto, parked exhaust filter cleaning has been performed and exhaust filter and warning light indicators are still illuminated, contact your John Deere dealer.