Cummins/Onan 12.5 RDJC / 15.0 RDJC — Exercising the Generator Set
Operation
For the Cummins/Onan 12.5 RDJC / 15.0 RDJC, from the Cummins/Onan operator's manual.
Applies to: Cummins/Onan 12.5 RDJC, Cummins/Onan 15.0 RDJC, Cummins/Onan RDJC
Before you start
- Improper exercising of the generator set may cause more damage than no exercising at all
Procedure
- Perform all required maintenance checks, start the unit, and apply a load of 50 percent or more by creating a simulated power failure.
- After the genset has reached its normal operating temperature, allow the genset to run an additional 30 minutes.
- Shut the unit down by simulating the return of normal power.
- Run the set approximately three to five minutes with no load to allow the engine to cool down.
Specs & values
- Exercise at least once each week; hold engine oil temperature at 180°F (82.2°C) for at least 30 minutes
Full service-parts list: Cummins/Onan RDJC →
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.