Cummins/Onan RSS100 / RSS200 — Circuit Breaker Replacement Procedure
Repair & overhaul
For the Cummins/Onan RSS100 / RSS200, from the Cummins/Onan service manual.
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Before you start
- The transfer switch presents a shock hazard that can cause severe personal injury or death.
Procedure
- Move the operation selector switch on the generator set to Stop (Off).
- Disconnect the external battery charger from its AC power source.
- Disconnect the generator set starting battery (negative [-] lead first).
- Remove AC power to the automatic transfer switch.
- Remove the transfer switch cabinet door panel.
- Remove the hardware securing the bus bars to the circuit breaker.
- Remove the two #8-32 screws securing the circuit breaker to the circuit breaker bracket.
- Remove the circuit breaker.
- Use the two #8-32 screws to install the new circuit breaker.
- Use the hardware removed in step 6 to reinstall the bus bars; tighten the bolts to 80 in-lbs (9 N·m).
- Restore power.
Specs & values
- Bus bar bolts: 80 in-lbs (9 N·m)
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.