Cummins/Onan — Heavy Duty Air Cleaner Element Removal
Maintenance
From a Cummins/Onan service manual covering: QSX15, QSX15-G8, QSX15-G9. Check it applies to your exact model before use.
Applies to: Cummins/Onan DFE, Cummins/Onan DFEJ, Cummins/Onan DFEK, Cummins/Onan QSx15, Cummins/Onan QSX15-G9 engine
Before you start
- Do not clean paper-type air cleaner elements.
Procedure
- Before disassembly, wipe dirt from the cover and upper portion of the air cleaner.
- Loosen the wing bolt (1) and remove the band clamp securing the dust pan (2).
- Remove the dust shield (4) from the dust pan (2).
- Clean the dust pan and shield.
- Loosen the wing bolt (3).
- Remove the wing nut (5) securing the air cleaner primary element (6) in the housing.
- Inspect the rubber sealing washer on the wing nut.
- Remove the dirty primary element (6); if replacing inner safety element (8), remove wing nut (7) and replace. Dispose per local regulations.
Full service-parts list: Cummins/Onan DFE →, Cummins/Onan DFEJ →, Cummins/Onan DFEK →, Cummins/Onan QSx15 →
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.