Cummins/Onan C250 / C300N6 — Switch Adjustment
Adjustments · Micrologic 2.0/3.0/5.0 Electronic Trip Unit
For the Cummins/Onan C250 / C300N6, from the Cummins/Onan manual.
Applies to: Cummins/Onan C250, Cummins/Onan C300N6, Cummins/Onan GTA855E engine
Procedure
- Open switch cover (A).
- Adjust the appropriate switches (B) to desired values.
- Replace switch cover. Use wire seal MICROTUSEAL (C), if necessary, to provide tamper evidence.
Tools required
- wire seal MICROTUSEAL Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Cummins/Onan C250 →, Cummins/Onan C300N6 →
Source: Cummins/Onan 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.