Cummins/Onan — Preparing Set for Storage

Maintenance · Generator set

From a Cummins/Onan operator's manual — check it applies to your exact model before use.

Applies to: Cummins/Onan GGHE, Cummins/Onan GGHF, Cummins/Onan Modified Ford V-10 WSG-1068 engine

Procedure

1. Exercise the set until the engine is up to operating temperature.
2. Shut down the engine.
3. Turn off and disconnect battery charger (if equipped).
4. Disconnect battery (negative [–] first) and store in a cool, dry place; connect to charger every 30 days.
5. Drain engine oil while still warm and refill with new recommended oil; tag indicating type of oil used.
6. Remove spark plugs and pour two ounces of rust preventative oil into each spark plug opening; crank set five seconds and replace spark plugs.
7. Disconnect engine coolant heater from power source (if equipped).
8. Drain the cooling system including the engine block.
9. Remove the air cleaner and seal off the carburetor air inlet opening and PVC hose.
10. Plug the exhaust outlets to prevent entrance of moisture, bugs, dirt, etc.
11. Clean and wipe entire unit; coat parts susceptible to rust with a light coat of oil.
12. Cover entire set loosely after engine has cooled down.

Full service-parts list: Cummins/Onan GGHE →, Cummins/Onan GGHF →

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.

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