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Home›Repair guides›Cummins/Onan›Alternator Disassembly

Cummins/Onan PX12000 / RGV13100 — Alternator Disassembly

Repair & overhaul

For the Cummins/Onan PX12000 / RGV13100, from the Cummins/Onan service manual.

Applies to: Cummins/Onan PX12000, Yamaha EH65D engine, Cummins/Onan EH65D engine

Before you start

  • The stator is heavy. Be careful not to hit the stator coil against the rotor.

Procedure

  1. Remove the end cover.
  2. Remove the brush cover and the brush holder.
  3. Take off the two flange-nuts and lift the front cover with a piece of lumber.
  4. Lift the front cover until the rear cover removes from the mount rubber.
  5. Remove the rear cover.
  6. Remove the bushing.
  7. Remove the stator cover.
  8. Remove the stator.
  9. Loosen the through bolt of the rotor.
  10. Remove the rotor with a soft hammer.
  11. Temporarily tighten the through bolt of the rotor when hitting the rotor.
  12. Remove the front cover.

Tools required

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

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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