Cummins/Onan — Generator Set Start Test
Operation · Transfer switch / generator set
From a Cummins/Onan service manual covering: LT 100, LT 150, LT 200, LT 260, LT 30, LT 60. Check it applies to your exact model before use.
Applies to: Cummins/Onan TGHAA
Before you start
- AC power within the cabinet and the rear side of the cabinet door presents a shock hazard that can cause severe personal injury or death. Use extreme caution to avoid touching electrical contacts whenever the cabinet door is open.
Procedure
- Place the Load/No-Load selector switch on the control in the No-Load position.
- Close the cabinet door.
- Control Package A: Activate the remote test input; generator set should start and run.
- At end of test period, deactivate the remote test input; generator will stop.
- Control Package B: Press and hold the Test switch on the front of the door; generator set should start and run.
- Release the Test switch; generator will stop.
- Check Load/No-Load selector switch is in the desired position, then close and lock the cabinet door.
Full service-parts list: Cummins/Onan TGHAA →
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.