Cummins/Onan 5MDKAU — Draining Water and Sediment from Fuel Filter
Maintenance
For the Cummins/Onan 5MDKAU, from the Cummins/Onan service manual.
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Before you start
- Accidental or remote starting can cause severe personal injury or death
Procedure
- Disconnect negative battery cable and close the fuel supply valve, if provided.
- Open the front access door.
- Remove the drain plug at the bottom of the filter and drain about 1/2 cup (120 ml).
- Re-install the drain plug and close the access door.
- Dispose of the drain-off in accordance with local environmental regulations.
Specs & values
- about 1/2 cup (120 ml)
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.