GENERATOR(for 130 A Type) INSPECTION

PROCEDURE


  1. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY


    1. A004QQD

      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.

  2. INSPECT GENERATOR ROTOR ASSEMBLY


    1. A004SZSE05
      Text in Illustration
      *1 Slip Ring

      Check the rotor for an open circuit.


      1. 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.

    2. A004Q9SE06
      Text in Illustration
      *1 Slip Ring
      *2 Rotor Core

      Check if the rotor is grounded.


      1. 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.

    3. Check that the slip rings are not rough or scored.

      If rough or scored, replace the generator rotor assembly.

    4. A004QVS

      Using a vernier caliper, measure diameter of the slip rings.

      Standard diameter
      14.2 to 14.8 mm (0.559 to 0.583 in.)
      Minimum diameter
      14.0 mm (0.551 in.)

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

  3. INSPECT GENERATOR ROTOR BEARING


    1. A004S7S

      Check that the bearing is not rough or worn, and that it rotates smoothly.

      If the bearing does not rotate smoothly, replace the generator rotor assembly.

  4. INSPECT GENERATOR PULLEY


    1. A004MM7E04
      Text in Illustration
      *a Free
      *b Lock

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

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