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Cummins/Onan 4.5 CKM — Service Procedure

For the Cummins/Onan 4.5 CKM.

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Before you start

  • If a new stator (without center-tapped B1/B2
  • Some models with center-tapped windings used B1 and B3.
  • If circuit board C-239396 is used with an old

Procedure

  1. Coat tapered shaft with anti-seize compound, see
  2. Slide rotor onto tapered shaft and hand-tighten thru-
  3. Place stator over rotor and onto adapter lip. Be careful
  4. Slide stator leads through opening in end bracket and
  5. Place hoist hook into end bracket air vents and raise
  6. Slide engine wiring harness (plastic conduit) through
  7. See Section 9. Wiring Diagrams” for proper wiring of

Tools required

  • hoist hook into end bracket air vents and raise

Source: manual:TP5206 Kohler Gen Service 4.5CKM (06-1990).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.