Cummins/Onan — Air Cleaner Maintenance - 5.0 and 6.0 kW Gensets
Maintenance
From a Cummins/Onan operator's manual covering: 2.0 EGHAM, 2.5 EGHAA, 3.5 EGHEM, 4.0 EGHAB, 4.0 EGHEB, 5.0 EGHAB, 5.0 EGHEB, 5.0 EGHEM, 6.0 EGHEB. 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 5.0 EGHEB, Cummins/Onan 6.0 EGHEB, Cummins/Onan Elite E140H engine, Cummins/Onan GH170 engine
Before you start
- Failure to adequately wring out excess oil may cause a drop in engine power due to restriction of inlet air.
Procedure
- Remove the outer cover by rotating the quarter-turn fastener counterclockwise to its vertical position; lift off the cover.
- Remove and wash the foam wrapper in water and detergent; squeeze it dry like a sponge, rinse and allow to dry.
- Coat the wrapper evenly with one tablespoon (14 grams) of SAE 30 engine oil; knead in and wring out excess oil.
- Re-install the foam wrapper over the paper element by stretching it over the inner cover.
- For element replacement, close the choke plate; remove the mounting nut, inner cover and element; wipe the base clean.
- Install the new paper element and secure with the inner cover and nut; tighten the nut 1-1/2 turns after seating.
Specs & values
- Foam wrapper oil: one tablespoon (14 grams) SAE 30
- Element mounting nut: 1-1/2 turns after seating
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.