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Cummins/Onan 2100 Series — Generator Disassembly

Repair & overhaul

For the Cummins/Onan 2100 Series, from the Cummins/Onan service manual.

Applies to: Cummins/Onan DFAB, Cummins/Onan DFAC, Cummins/Onan DFBF, Cummins/Onan DFCB, Cummins/Onan DFCC, Cummins/Onan DFCE, Cummins/Onan DFGB, Cummins/Onan DFGE, Cummins/Onan DFLB, Cummins/Onan DFLC, Cummins/Onan DFLE

Before you start

  • Use adequate lifting devices to support heavy components.

Procedure

  1. Disconnect negative battery cable.
  2. Remove control housing grille and access covers.
  3. Remove PMG cover, disconnect harness, remove PMG stator and rotor.
  4. Remove control housing assembly from generator.
  5. Remove endbracket and bearing cartridge.
  6. Lift generator and block rear of engine.
  7. Remove stator assembly away from rotor.
  8. Remove rotor assembly and place on wood blocks.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Full service-parts list: Cummins/Onan DFBF →, Cummins/Onan DFCC →, Cummins/Onan DFCE →, Cummins/Onan DFGB →, Cummins/Onan DFGE →, Cummins/Onan DFLB →, Cummins/Onan DFLC →, Cummins/Onan DFLE →

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.

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