Cummins/Onan 10W30 — Returning Set to Service
Maintenance · Generator set
For the Cummins/Onan 10W30, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan GGHE, Cummins/Onan GGHF, Cummins/Onan WSG-1068 engine
Procedure
- Remove protective cover.
- Remove exhaust plugs, seal from carburetor and PVC hose and replace air cleaner.
- Check oil dipstick to make sure crankcase is full.
- Refill cooling system.
- Reconnect battery (positive [+] cable first) and check specific gravity.
- Connect the battery charger (if applicable).
- Connect engine coolant heater to power supply (if applicable).
- Remove all loads before starting set.
- Start set and apply load of at least 50% of nameplate rating.
- Check all gauges for normal readings.
Tools required
- battery hydrometer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Apply load of at least 50% of nameplate rating
Full service-parts list: Cummins/Onan GGHE →, Cummins/Onan GGHF →
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.