Diesel Particulate Filter Service

IMPORTANT: Using incorrect or unapproved aftertreatment components can cause damage to vehicle’s aftertreatment system and reduce ability of aftertreatment system to function correctly. Never interchange aftertreatment components between Interim Tier 4/Stage III B and Final Tier 4/Stage IV equipped vehicles.

Exhaust Filter includes Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF). DPF is designed to retain residual ash, which is a noncombustible result of additives used in crankcase lubrication oils and fuel. DPF provides many hours of maintenance free operation. At some point DPF will require professional service to remove accumulated ash. The exact number of hours of operation before service is required will vary depending upon engine’s power category, duty cycle and operating conditions, engine oil ash content, and fuel quality. Adhering to John Deere's™ recommended oil and fuel specifications will maximize hours of operation before professional DPF service is required.

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DPF Filter On Top of Engine

As engine owner, you are responsible for performing required maintenance described in your Operator’s Manual. During normal equipment operation DPF maintenance requirements will depend on rate at which ash accumulates in it. As ash levels rise in DPF capacity for soot storage is reduced and back pressure of exhaust system will rise more frequently. Exhaust Filter dash lamp indicator or diagnostic gauge will indicate when DPF needs servicing.

Removal of DPF ash must be done by removing DPF from machine and placing it into specialized equipment. Do not remove ash by using water or other chemicals. Removing ash by these methods may damage material securing DPF in its canister, resulting in the loosening of DPF element in canister and subjecting it to damage from vibration.

Failure to follow approved ash removal methods may violate U.S. federal, state and local hazardous waste laws, along with damage to DPF resulting in potential denial of Diesel Exhaust Filter emissions warranty. It is strongly recommended you take DPF to an authorized John Deere™ service location or other qualified service provider for servicing.

When AUTO PARKED exhaust filter cleaning is enabled, exhaust temperature may be high under no load or light load conditions at certain times during exhaust filter cleaning cycle.

Disable exhaust filter cleaning in conditions where it may be unsafe for elevated exhaust temperatures.

Disable automatic exhaust filter cleaning only when necessary.