Cummins/Onan 10CW — Preparing Units for Storage

Maintenance · Complete unit

For the Cummins/Onan 10CW, from the Cummins/Onan owner's manual.

Applies to: Cummins/Onan CW series engine

Procedure

1. Shut off fuel and run until it stops.
2. Drain oil while engine warm and replace plug.
3. Pour two tablespoonfuls rust inhibitor oil into each cylinder and crank slowly.
4. Clean and replace air cleaner.
5. Coat exposed parts with grease film.
6. Oil governor-to-carburetor linkage with SAE 50 oil.
7. Plug exhaust outlet with wood plug.
8. Clean generator brushes and rings; remove/store batteries.

Source: Cummins/Onan owner'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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