Cummins/Onan — Air Cleaner Service
Maintenance
From a Cummins/Onan operator's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan NT855 engine, Cummins/Onan NTA855 engine
Before you start
- Filters should be handled with care to prevent damage. If the filter does become damaged, install recommended replacement part.
Procedure
- Loosen fastener(s) and remove air cleaner housing end cap.
- Remove the air filter element from the filter housing.
- To clean, blow low pressure compressed air (30 psi/207 kPa) through the element from the clean side. Hold the nozzle at least 1 inch (25 mm) away.
- Soak the filter for at least 15 minutes in water and Donaldsons D1400 solvent (or equivalent) to remove soot, carbon and dirt.
- Rinse with clean water (low pressure) and allow to air dry. Do not blow dry with compressed air. Reinstall when dry.
- Replace the filter after two cleanings to avoid restricting the airflow.
Tools required
- Compressed air (30 psi/207 kPa) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Compressed air 30 psi (207 kPa)
- Nozzle at least 1 inch (25 mm) from element
- Soak at least 15 minutes
Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →
Source: Cummins/Onan operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.