Cummins/Onan — Replacing a Brush
Maintenance · Commutator/collector ring brushes
From a Cummins/Onan owner's manual covering: 1.5UF-232S, 10.0UF-150S, 12.0UF-3S, 12.0UF-4S, 15.0UB-150S, 15.0UF-3S/104, 2.0UF-125S, 2.0UF-232S/32, 2.0UG-1S/135, 2.5UF-1S, 2.SUD-IS, 2.SUD-IS/ID…. Check it applies to your exact model before use.
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Procedure
- For a commutator brush, push the spring plate inward and away from the brush guide to remove the spring.
- For a collector ring brush, pull straight outward on the spring plate to remove the spring.
- Install the new brush with the low (shorter) side of the beveled top toward the spring-plate side of the guide.
- Ensure each brush is free in its guide.
Source: Cummins/Onan owner's 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.