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Cummins/Onan NTA855 — Air Cleaner Service

Maintenance

For the Cummins/Onan NTA855, from the Cummins/Onan operator's manual.

Applies to: Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan DQBA, Cummins/Onan DQBB, Cummins/Onan NTA855, Cummins/Onan NT855 engine, Cummins/Onan NTA855 engine, Cummins/Onan N14 engine

Before you start

  • Filters should be handled with care to prevent damage. If damaged, install recommended replacement part.

Procedure

  1. Loosen fastener(s) and remove air cleaner housing end cap.
  2. Remove the air filter element from the filter housing.
  3. Blow low pressure compressed air (30 psi/207 kPa) through element from the clean side.
  4. Hold nozzle at least 1 inch (25 mm) away to avoid damaging the element.
  5. Soak filter at least 15 minutes in water and Donaldsons D1400 solvent or equivalent.
  6. Rinse with clean low pressure water and allow to air dry. Do not blow dry.
  7. Reinstall when dry. Replace the filter after two cleanings.

Tools required

  • Compressed air Amazon
  • Donaldsons D1400 solvent or equivalent 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

Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →, Cummins/Onan DQBA →, Cummins/Onan DQBB →

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.

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