Cummins/Onan RGA-IN1 — Voltage Adjustment
Adjustments · Voltage regulator
For the Cummins/Onan RGA-IN1, from the Cummins/Onan service manual.
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Procedure
- Attach voltmeter securely to L1 and L2 leads.
- Start generator set and place typical load on output.
- Loosen hex locking nut securing voltage adjustment pot.
- Use flat-blade screwdriver to set voltage adjust potentiometer for correct voltage.
- For most RV and mobile applications, ideal setting is 117 VAC at 60-61 Hz, measured at L1-L0 terminals.
- Retighten locking nut when complete.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.