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Home›Repair guides›Tighten field poles to frame.

Cummins/Onan — Tighten field poles to frame.

For these Cummins/Onan models: 1400, 2.0UF-232S/32.

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Procedure

  1. 11 NATURE OF TROUBLE POSSIBLE CAUSE REMEDY Generator Runs but does not Produce Current. Brushes not contacting com- mutator. Free brushes in holders. Assemble brushes and springs correctly. Open, short or grounded circuit in generator. Test windings and repair or re- place defective parts. Generator line leads broken or loose. Tighten connections and replace broken leads. Generator armature rotating in the wrong direction. Correct direction of rotation. Or, connect wires, polarize field and re-install scroll to agree with di- rection of rotation. Generator Produces Low Voltage Speed low because of loose, slipping belts. Adjust belt tension. Generator brushes not in neutral position. Tum brush rig until the identifying marks are aligned correctly. External short circuit on line. Test generator with line wires disconnected. Open circuit of shunt field winding. Make proper connections according to wiring diagram. Short circuit of windings in the field or armature. Replace defective part.
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Source: manual:943-0004 Onan UF Battery Charger Manual(3-1077).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.