Home›Repair guides›Cummins/Onan›Clean Crankcase Breather (Beginning Spec R)

Cummins/Onan DJ30 — Clean Crankcase Breather (Beginning Spec R)

Maintenance

For the Cummins/Onan DJ30, from the Cummins/Onan service manual.

Applies to: Onan (Onan Division of Studebaker Corporation, Minneapolis, Minnesota) Spec T, Cummins/Onan DJA engine

Before you start

  • Always replace cap tightly or oil leakage may occur

Procedure

  1. Remove hose clamp, breather hose, insulator clamp, insulator halves and breather cap clamp.
  2. Wash cap, valve assembly and baffle in suitable solvent.
  3. Reinstall.

Full service-parts list: Onan (Onan Division of Studebaker Corporation, Minneapolis, Minnesota) Spec T →

Source: Cummins/Onan service 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.

More Cummins/Onan repair guides →