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Home›Repair guides›Kohler›Brushless Models (RZ) — Disassembly

Kohler — Brushless Models (RZ) — Disassembly

Repair & overhaul · Generator

From a Kohler service manual covering: 10RMOY, 15RMOY, 15RMY, 15ROY, 17.5ROY, 22.5ROZ, 22.5RZ, 24ROZ, 32.5ROZ, 32.5RZ, 47.5ROZ. Check it applies to your exact model before use.

Applies to: Kohler 15RMY, Kohler 15ROY, Kohler 17.5ROY, Kohler 22.5ROZ, Kohler 22.5RZ, Kohler 24ROZ, Kohler 32.5ROZ, Kohler 32.5RZ, Kohler 47.5ROZ

Before you start

  • Before disassembly, disconnect batteries and AC accessories, shut off fuel supply, drain fuel as necessary, and ventilate work area.

Procedure

  1. Remove end panel and enclosure side panels.
  2. Wrap and disconnect stator lead connections; pull back through current transformers if equipped.
  3. Remove black plastic speed sensor from end bracket (NFPA models only).
  4. Disconnect stator from steel mounting frame by removing bolts from vibro-mounts.
  5. Cradle stator with lifting straps or attach hooks to stator frame; hoist off vibro-mounts.
  6. Place wood blocks under flywheel housing to support engine.
  7. Remove generator fan guard.
  8. Remove bolts mounting generator adapter to flywheel housing.
  9. Remove nuts holding fan and drive discs to flywheel.
  10. Guide generator fan off studs and remove spacers.
  11. Loosen four stator-to-end bracket and four stator-to-adapter bolts (47.5 kW) or four overbolts (all other models).
  12. Hoist generator assembly end bracket down into a vertical position on wood blocks.
  13. Remove eight drive disc bolts; lift away drive discs and generator fan.
  14. Fasten lifting eye and hoist hook to rotor flange; hoist rotor to remove.
  15. Remove end bracket attachment bolts and overbolts; remove adapter; hoist stator away from end bracket.

Tools required

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

Full service-parts list: Kohler 15RMY →, Kohler 15ROY →, Kohler 17.5ROY →, Kohler 22.5ROZ →, Kohler 22.5RZ →, Kohler 24ROZ →, Kohler 32.5ROZ →, Kohler 32.5RZ →, Kohler 47.5ROZ →

Source: Kohler 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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