Generator Inspection

Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Battery Charging. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. INSPECT GENERATOR DRIVE END FRAME BEARING

  2. INSPECT GENERATOR ROTOR ASSEMBLY

  3. INSPECT GENERATOR ROTOR BEARING

  4. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

Generator -- Inspection



1. INSPECT GENERATOR DRIVE END FRAME BEARING


    Land Cruiser. Urj200, 202 Grj200 Vdj200
  1. Rotate the bearing and check that there is no abnormal noise and that it rotates smoothly.
    If necessary, replace the bearing (Click here).



2. INSPECT GENERATOR ROTOR ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Battery Charging.Charging System.Generator  Inspection
  1. Check the rotor for an open circuit.

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

      Standard Resistance:
      130 A Type
      Tester Connection
      Condition
      Specified Condition
      Slip ring - Slip ring
      20°C (68°F)
      2.3 to 2.7 Ω
      150 A Type
      Tester Connection
      Condition
      Specified Condition
      Slip ring - Slip ring
      20°C (68°F)
      1.5 to 1.9 Ω
      180 A Type
      Tester Connection
      Condition
      Specified Condition
      Slip ring - Slip ring
      20°C (68°F)
      1.36 to 1.76 Ω
      If the result is not as specified, replace the rotor assembly.


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Battery Charging.Charging System.Generator  Inspection
  1. 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
      Always
      10 kΩ or higher
      If the result is not as specified, replace the rotor assembly.
  1. Check that the slip rings are not rough or scored.
    If rough or scored, replace the rotor assembly.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Battery Charging.Charging System.Generator  Inspection
  1. 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 rotor assembly.


3. INSPECT GENERATOR ROTOR BEARING


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Battery Charging.Charging System.Generator  Inspection
  1. Rotate the bearing and check that there is no abnormal noise and that it rotates smoothly.
    If necessary, replace the generator rotor.



4. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY


    Land Cruiser. Urj200, 202 Grj200 Vdj200.1Vd-Ftv Battery Charging.Charging System.Generator  Inspection
  1. Using a vernier caliper, measure the exposed brush length.

    Standard exposed length:
    10.5 mm (0.413 in.)
    Minimum exposed length:
    4.5 mm (0.177 in.)
    If the exposed length is less than the minimum, replace the brush holder assembly.