Cummins/Onan 12.5 RDJC / 15.0 RDJC — Crankcase Breather Cleaning
Maintenance
For the Cummins/Onan 12.5 RDJC / 15.0 RDJC, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan 12.5 RDJC, Cummins/Onan 15.0 RDJC, Cummins/Onan RDJC
Procedure
- Remove hose clamp, breather hose, breather cap clamp and insulator halves to release breather cap and valve assembly.
- Wash cap, valve assembly and baffle in suitable solvent.
- Dry and reinstall.
Specs & values
- Clean at intervals recommended in the Maintenance Schedule (200 hours)
Full service-parts list: Cummins/Onan RDJC →
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.