GENERATOR INSPECTION


  1. INSPECT GENERATOR CLUTCH PULLEY


    1. A01CCZNE02
      Text in Illustration
      *1 Free
      *2 Lock

      Hold the center of the pulley, and confirm that the outer ring turns counterclockwise and does not turn clockwise.

      If the result is not as specified, replace the clutch pulley.

  2. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY


    1. A01CFBUE04
      Text in Illustration
      *1 Length

      Using a vernier caliper, measure the length of the exposed brushes.

      Standard exposed length
      9.5 to 11.5 mm (0.374 to 0.453 in.)
      Minimum exposed length
      4.5 mm (0.177 in.)

      If the exposed length is less than the minimum, replace the brush holder assembly.

  3. INSPECT GENERATOR ROTOR ASSEMBLY


    1. A01CEM9E02

      Check that the generator rotor bearing is not rough or worn.

      If necessary, replace the generator rotor assembly.

    2. A01CEMLE23
      Text in Illustration
      *1 Ohmmeter
      *2 Slip Ring

      Check the generator rotor for an open circuit.


      1. Using an ohmmeter, measure the resistance between the slip rings.

        Standard Resistance
        Condition Specified Condition
        Approx. 20°C (68°F) 1.5 to 1.9 Ω

        If the result is not as specified, replace the generator rotor assembly.

    3. A01CE1KE18
      Text in Illustration
      *1 Ohmmeter
      *2 Rotor
      *3 Slip Ring

      Check the rotor for a short to ground.


      1. Using an ohmmeter, measure the resistance between the slip ring and rotor.

        Standard Resistance
        Tester Condition Specified Condition
        Slip ring - Rotor 1 MΩ or higher

        If the result is not as specified, replace the generator rotor assembly.

    4. A01CEP9E02
      Text in Illustration
      *1 Diameter

      Using a vernier caliper, measure the slip ring diameter.

      Standard diameter
      14.2 to 14.4 mm (0.559 to 0.567 in.)
      Minimum diameter
      14.0 mm (0.551 in.)

      If the diameter is less than the minimum, replace the generator rotor assembly.

  4. INSPECT GENERATOR DRIVE END FRAME BEARING


    1. A01CF7W

      Check that the bearing is not rough or worn.

      OK
      The bearing rotates smoothly.

      If the bearing does not rotate smoothly, replace the bearing.