Cummins/Onan — Exercising the Genset
Operation
From a Cummins/Onan operator's manual covering: 5.5 HGJAA, 5.5 HGJAB, 6.5 HGJAA, 6.5 HGJAB, 7.0 HGJAA, 7.0 HGJAB. Check it applies to your exact model before use.
Applies to: Cummins/Onan HGJAA, Cummins/Onan HGJAB, Cummins/Onan HGJAC
Procedure
- Exercise the genset at least 1 hour each month if use is infrequent.
- Run the genset at approximately 1/2 rated power.
- A single exercise period is better than several shorter periods.
Specs & values
- At least 1 hour each month
- Approximately 1/2 rated power
Full service-parts list: Cummins/Onan HGJAA →, Cummins/Onan HGJAB →, Cummins/Onan HGJAC →
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.