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Cummins/Onan — Normal Local Starting Procedure

Operation · Engine starting 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

Before you start

  • To prevent damage to the starter, do not engage the starting motor more than 15 seconds. Wait 15 seconds between each attempt to start.

Procedure

  1. Press the MANUAL position on the AUTO/MANUAL rocker switch.
  2. Observe the battery voltages displayed; use the battery with the highest indicated voltage.
  3. Start the engine using either the CRANK BATT A or CRANK BATT B rocker switch positions.
  4. Depress the selected switch for up to 15 seconds or until the engine starts; repeat up to three times if necessary.
  5. Check that engine oil pressure is indicated on the gauge within 15 seconds after starting.
  6. To stop, select the AUTO position on the AUTO/MANUAL rocker switch and press the RESET switch.

Specs & values

  • Engine oil pressure must be indicated within 15 seconds after starting

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.

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