Cummins/Onan — Removing the Genset (Disconnecting)
Installation
From a Cummins/Onan service manual covering: 5.5 HGJAA, 5.5 HGJAB, 5.5 HGJAC, 5.5 HGJAD, 5.5 HGJAE, 5.5 HGJAF, 6.5 HGJAA, 6.5 HGJAB, 6.5 HGJAC, 6.5 HGJAE, 6.5 HGJAF, 7.0 HGJAA…. Check it applies to your exact model before use.
Applies to: Cummins/Onan 5.5 HGJAD, Cummins/Onan 5.5 HGJAE, Cummins/Onan 6.5 HGJAE
Before you start
- Arcing at battery terminals can ignite battery gas causing severe personal injury.
- Gasoline and LPG are flammable and explosive and can cause severe personal injury or death.
- LPG sinks and can accumulate in explosive concentrations.
Procedure
- Disconnect all battery cables (negative first) at the battery terminals.
- Disconnect the negative and positive battery cables at the genset.
- Disconnect the wiring connectors for remote control and remote fuel pump.
- Disconnect the generator AC output wires and conduit from the junction box.
- Disconnect the exhaust tail pipe.
- Gasoline models: disconnect the fuel line(s) and securely plug the ends.
- LPG models: close the fuel shutoff valve(s), move the vehicle outside and away from below-grade spaces, purge LPG, then disconnect and plug.
Full service-parts list: Cummins/Onan 5.5 HGJAD →, Cummins/Onan 5.5 HGJAE →, Cummins/Onan 6.5 HGJAE →
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.