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Cummins/Onan 50.0 DDB 15R / 50.0 DDB 15R J 1 Q — Starting the Generating Set

Operation

For the Cummins/Onan 50.0 DDB 15R / 50.0 DDB 15R J 1 Q, from the Cummins/Onan operator's manual.

Applies to: Cummins/Onan 50.0 DDB 15R, John Deere 6329D engine

Before you start

  • Verify electric solenoid valve for city water cooled plants is open before initial start to allow coolant chambers to fill; overheating and engine damage could result.

Procedure

  1. Recheck that crankcase is filled.
  2. Recheck cooling system is filled and input solenoid valve open.
  3. Recheck batteries are charged and connected.
  4. Recheck fuel solenoid valve open.
  5. Move the run-stop/reset-remote switch to the run position.
  6. Immediately after start, observe oil pressure gauge; normal oil pressure is 45 to 65 psi (310.5 to 448.5 kPa).
  7. Check DC ammeter (10 to 30 amperes), AC voltmeter, and frequency meter.

Specs & values

  • Normal oil pressure 45 to 65 psi (310.5 to 448.5 kPa)

Full service-parts list: Cummins/Onan 50.0 DDB 15R →, John Deere 6329D engine →

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.

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