GENERATOR INSPECTION


  1. INSPECT GENERATOR WITH CLUTCH PULLEY


    1. B007ULI

      Hold the center of the generator with clutch pulley and check that the outer ring turns counterclockwise and does not turn clockwise.

      Text in Illustration
      B007USN Free
      B007QIC Lock

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

  2. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY


    1. B007SJTE09
      Text in Illustration
      *a Length

      Using a vernier caliper, measure the brush length.

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

  3. INSPECT GENERATOR ROTOR ASSEMBLY


    1. B007V59

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

      If necessary, replace the generator rotor assembly.

    2. Check the generator rotor assembly for an open circuit.


      1. B007VUJE03
        Text in Illustration
        *a Slip Ring

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        Slip ring - Slip ring 20°C (68°F) 2.3 to 2.7 Ω

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

    3. Check if the generator rotor assembly is grounded.


      1. B007PFUE02
        Text in Illustration
        *a Slip Ring
        *b Rotor Core

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        Slip ring - Rotor core Always 10 kΩ or higher

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

    4. B007QD7E02
      Text in Illustration
      *a 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.