Cummins/Onan — Removing the Generator
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HDKC, Cummins/Onan HDKCA, Cummins/Onan HDKCB
Before you start
- Disconnect negative battery cable before service.
Procedure
- Remove engine-generator assembly as an assembly from genset.
- Remove air inlet assembly.
- Disconnect generator leads at grounding screw and separate connector P3/J3.
- Remove brush block or lift brushes and insert wire to hold them up.
- Loosen four through bolt nuts and remove end bell and stator assemblies.
- Remove adaptor casting from flywheel housing, then rotor from flywheel.
Full service-parts list: Cummins/Onan HDKC →, Cummins/Onan HDKCA →, Cummins/Onan HDKCB →
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.