Cummins/Onan — Genset Storage
Operation
From a Cummins/Onan operator's manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MDKAD, Cummins/Onan MDKAE, Cummins/Onan MDKAF, Kubota V1903B engine, Kubota V2203B engine, Kubota V2803B engine
Before you start
- Crankcase pressure can blow out hot oil and cause severe burns.
- Hot coolant is under pressure and can cause severe burns.
- Arcing at battery terminals can ignite battery gas causing severe personal injury.
Procedure
- Run the genset until it has thoroughly warmed up and shut it down.
- Change the oil and oil filter while still warm; attach a tag to the dipstick indicating oil viscosity grade.
- Disconnect the battery cables (negative first) and store the battery(ies) per manufacturer's recommendations.
- Check coolant level and add coolant as necessary; test and change coolant mixture if freezing temperatures possible.
- If freezing temperatures are expected, drain the heat exchanger of sea water at the drain plug; replace plug when drained.
- Clean the genset and lightly oil parts that can rust.
Full service-parts list: Cummins/Onan MDKAD →, Cummins/Onan MDKAE →, Cummins/Onan MDKAF →, Kubota V1903B engine →
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.