Exhaust Filter Maintenance and Service

Performing recommended exhaust filter cleaning will help to reduce ash build up and extend the life. Refer to the “Operating” section of the OM for exhaust filter cleaning directions.

See your John Deere dealer for exhaust filter maintenance. Ensure that exhaust filter cleaning has been performed first as this may resolve problems. If exhaust filter cleaning has been performed and the service exhaust filter indicator light (Stop and exhaust filter) on the dash turns on after a short period, exhaust filter service may be required.

The Exhaust Filter includes the Diesel Oxidation Catalyst (DOC) and Diesel Particulate Filter (DPF). The DPF retains residual ash, which is the noncombustible result of additives used in crankcase lubrication oils and the fuel. The exhaust filter provides many hours of maintenance free operation. At some point the exhaust filter will require replacement to remove the accumulated ash.

The exact number of hours of operation before replacement or service is required will vary depending upon the 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 the hours of operation before service is required.

During normal equipment operation the DPF service interval will depend on the rate at which ash accumulates in it. Generally, exhaust filters on engines below 175 hp / 130 kW will require replacement at about 3,000 hours while engines at or above 175 hp / 130 kW will require replacement at about 4,500 hours. As ash levels rise in the DPF, the capacity for soot storage is reduced and the back pressure of the exhaust system will rise more frequently. The exhaust filter indicator will indicate when cleaning or service is needed.

The removal and disposal of DPF ash must be done by a professional, see your John Deere dealer. Do not attempt to remove ash by using water or other chemicals. Removing ash by these methods may damage the material securing the DPF in its canister, resulting in the loosening of the DPF element in the canister and subjecting it to damage from vibration.

Failure to follow the approved ash removal methods may damage the exhaust filter resulting in potential denial of the Exhaust Filter emissions warranty. Take your machine to an authorized John Deere dealer for service.