Facts About Generators
GeneratorsDirectoryCompareRepairEnginesControllersPartsManufacturersGuides
Search models or part #
Home›Repair guides›Generac›Major Disassembly - Stator, Rotor and Engine Removal

Generac — Major Disassembly - Stator, Rotor and Engine Removal

Repair & overhaul · Alternator / engine assembly

From a Generac service manual covering: GPS 12500, GPS 15000, GPS 17500. Check it applies to your exact model before use.

Applies to: Generac GPS 12500, Generac GPS 15000

Before you start

  • Use proper safety precautions when handling gasoline

Procedure

  1. Disconnect and remove the battery from the generator.
  2. Remove fuel tank; use proper safety precautions when handling gasoline.
  3. Remove control panel; disconnect Wires 11, 44, 22 and C1/C2 connectors.
  4. Remove air deflector from cross member; remove muffler and heat shield.
  5. Disconnect Wire 4 and Wire 0 from brush assembly; remove brush assembly.
  6. Remove four stator hold-down bolts; remove rear bearing carrier and stator can.
  7. Remove rotor bolt; slot bolt and use 3 inch M12 x 1.75 bolt to break taper.
  8. Remove four nuts from rubber engine mounts; remove engine. Reverse for assembly.

Tools required

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

Specs & values

  • Rotor bolt 30 ft. lbs.
  • Stator bolt 12 ft. lbs.

Source: Generac 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.

More Generac repair guides →