Cummins/Onan — Pre-Lubricate the Engine (CFP83-F10, F20, F30)
Maintenance · Lubricating oil system
From a Cummins/Onan owner's manual covering: 6CTA8.3, CFP83-F10, CFP83-F20, CFP83-F30, CFP83-F40. Check it applies to your exact model before use.
Applies to: Cummins/Onan 6CTA8.3, Cummins/Onan CFP83-F10, Cummins/Onan CFP83-F20, Cummins/Onan CFP83-F30, Cummins/Onan CFP83-F40, Cummins/Onan 6CTA8.3G2 engine, Cummins/Onan 6CTAA8.3G3 engine
Procedure
- Disconnect the connector at the electric fuel solenoid (Fuel Shutoff Valve).
- Press the MANUAL position on the AUTO/MANUAL rocker switch.
- Crank the engine about two revolutions using either the CRANK BATT A or the CRANK BATT B switch positions.
- Repeat a second time if oil pressure did not register on the gauge.
- Reconnect the connector at the fuel injection pump solenoid (Fuel Shutoff Valve).
Specs & values
- Monitor engine oil pressure on the local control panel; low oil pressure light should go off
Full service-parts list: Cummins/Onan CFP83-F10 →, Cummins/Onan CFP83-F20 →, Cummins/Onan CFP83-F30 →, Cummins/Onan CFP83-F40 →
Source: Cummins/Onan owner'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.