Cummins/Onan — Fuel Filter Replacement (4.0 kW and Below)
Maintenance
From a Cummins/Onan service manual covering: 1.4 EGPAA, 1.7 EGPAA, 2.0 EGHAM, 2.0 EGPAB, 2.5 EGHAA, 2.5 EGPAB, 3.5 EGHEM, 3.5 EGPAC, 4.0 EGHAB, 4.0 EGHEB, 4.0 EGPAC, 5.0 EGHAB…. Check it applies to your exact model before use.
Applies to: Cummins/Onan 2.5 EGHAA, Cummins/Onan 4.0 EGHAB, Cummins/Onan 5.0 EGHAB, Cummins/Onan GH170 engine, Cummins/Onan GH280 engine, Cummins/Onan Elite E140H engine
Before you start
- Fuel presents fire or explosion hazard; keep ABC extinguisher nearby.
Procedure
- Close fuel supply valve; run set until it runs out of fuel; let cool.
- Remove fuel line from shutoff valve and collect fuel in a container.
- Unscrew sediment bowl from fuel supply valve and clean it.
- Remove screen and clean dirt and particulate off the screen.
- Reinstall screen and sediment bowl; attach fuel line securely.
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.