Cummins/Onan GS-107-AC — Applying load
Operation · Generator set
For the Cummins/Onan GS-107-AC, from the Cummins/Onan service manual.
Applies to: Hol-Gar GS-107-AC, Cummins/Onan J120-S/967F engine
Procedure
- Allow unit to warm thoroughly before connecting load.
- Apply load in steps (1/4, 1/2, 3/4, full) at 30 minute intervals.
- Place load switch (circuit breaker) in ON position.
- Check voltage and adjust with voltage adjustment knob.
- Check meters for proper readings; if overload, stop unit and adjust load.
Full service-parts list: Hol-Gar GS-107-AC →
Source: Cummins/Onan service 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.