GENERATOR(for TMC Made except Cold Area Specification Vehicles) INSPECTION

PROCEDURE


  1. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

    A01VFPSE01
    Text in Illustration
    *1 Length

    1. Using a vernier caliper, measure the exposed 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 exposed length is less than the minimum, replace the generator brush holder assembly.

  2. INSPECT GENERATOR REGULATOR ASSEMBLY

    A01VGEQE01

    1. Check the resistance.


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

        Standard resistance
        Tester Connection Condition Specified Condition
        Terminals F - Terminals B always When the positive and negative poles between terminals F and B are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

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

      2. A01VGMCE01

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

        Standard resistance
        Tester Connection Condition Specified Condition
        Terminals E - Terminals F always When the positive and negative poles between terminals E and F are exchanged, there is a resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

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

  3. INSPECT GENERATOR DRIVE END FRAME

    A01VICOE02

    1. Check the stator coil for open circuits.


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

        Standard resistance
        Tester Connection Condition Specified Condition
        Coil lead - Coil lead always Below 1 Ω

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

    2. A01VF1PE02

      Inspect the stator for ground.


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

        Standard resistance
        Tester Connection Condition Specified Condition
        Coil lead - Drive end frame always 10 kΩ or higher

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

    3. Inspect the bearing.


      1. Make sure that the bearing is not rough or worn. If necessary, replace the generator assembly.

  4. INSPECT GENERATOR HOLDER WITH RECTIFIER

    A01VE73E01

    1. Check the resistance.


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

        Standard resistance
        Tester Connection Condition Specified Condition
        P1, P2, P3 and B always Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.
        P1, P2, P3 and E always Resistance of below 1 Ω in one direction but 10 kΩ or higher in the other direction.

        If the result is not as specified, replace the generator holder with rectifier.

  5. INSPECT GENERATOR ROTOR ASSEMBLY

    A01VECME02

    1. Check the generator rotor for open circuits.


      1. Measure the resistance between the slip rings.

        Text in Illustration
        *1 Slip Ring
        Standard resistance
        Tester Connection Condition Specified Condition
        Slip ring - Slip ring 20°C (68°F) 1.7 to 2.1 Ω

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

    2. A01VF3YE01
      Text in Illustration
      *1 Slip Ring
      *2 Rotor

      Check the generator rotor for short circuits.


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

        Standard resistance
        Tester Connection Condition Specified Condition
        Slip ring - Rotor always 10 MΩ or higher

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

    3. Inspect slip rings.


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

        If rough or scored, replace the generator rotor assembly.

      2. A01VM3C

        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.