FixVault
Home › Lexus › 2017 › RX 350 Base, AWD › Repair and Diagnosis › Electrical › Charging Systems › Battery / Charging System - Service Information › Generator › Inspection [09/2015 - 12/2017] › Procedure

Inspection [09/2015 - 12/2017]: Procedure

  1. INSPECT GENERATOR PULLEY WITH CLUTCH 
    1. Hold the center of the generator pulley with clutch, and confirm that the outer ring turns counterclockwise and does not turn clockwise.

      OK

      The outer ring turns counterclockwise and does not turn clockwise.

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

      GTY948020Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Free
      Lock
  2. INSPECT GENERATOR REGULATOR ASSEMBLY 
    1. Using a vernier caliper, measure the length of the exposed brushes.

      Standard Exposed Brush Length

      10 to 11 mm (0.394 to 0.433 in.)

      Minimum Exposed Brush Length

      1.9 mm (0.0748 in.)

      GTY960488Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Length

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

  3. INSPECT GENERATOR ROTOR ASSEMBLY 
    1. Check the generator rotor assembly for an open circuit.
      GTY960502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Slip Ring
      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) 2.0 to 2.2 Ω

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

    2. Check the generator rotor assembly for a short to ground.
      GTY960491Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Slip Ring
      *b Rotor
      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. Check that the generator rotor bearing is not rough or worn and that it rotates smoothly.
      GTY960494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the generator rotor bearing is rough or worn, or does not rotate smoothly, replace the generator rotor assembly.

    4. Check the slip ring.
      GTY433587Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Diameter
      1. Check that the slip rings are not rough or scored.

        If the slip rings are rough or scored, replace the generator rotor assembly.

      2. 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

        13 mm (0.512 in.)

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

  4. INSPECT GENERATOR DRIVE END FRAME BEARING 
    1. Check that the generator drive end frame bearing is not rough or worn and that it rotates smoothly.
      GTY947188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If the generator drive end frame bearing is rough or worn, or does not rotate smoothly, replace the generator drive end frame bearing.

About FixVault