Cummins/Onan — Set Removal - Disconnecting Generator Set Systems
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MDKUB, Cummins/Onan MDKWB
Before you start
- Leakage of fuel presents fire or explosion hazard; ensure no ignition sources are nearby
Procedure
- Disconnect the generator set negative (-) battery cable at the battery terminal
- Disconnect the generator set positive (+) battery cable from the wire harness
- Disconnect the remote control plug wire from the generator set (if applicable)
- Disconnect the generator load wires; tag for identification when reconnecting
- Disconnect the exhaust system and support brackets or hangers
- Disconnect the sea water cooling system and its supports
- Disconnect the fuel line at the genset housing; plug the end to prevent leakage
- Verify the set is adequately supported before loosening mounting bolts or supports
Full service-parts list: Cummins/Onan MDKUB →, Cummins/Onan MDKWB →
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.