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Charging (2GR-FSE): Generator: Inspection

INSPECT CLUTCH PULLEY
1. Hold the center of the pulley, and confirm that the outer ring turns counterclockwise and does not turn clockwise.
  If the result is not as specified, replace the clutch pulley.
  
  Fig 1: Checking Clutch Pulley
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT GENERATOR BRUSH HOLDER ASSEMBLY
1. Using vernier calipers, measure the length of the exposed brushes.
  Standard length: 10.5 mm (0.413 in.)
  
  Minimum length: 4.5 mm (0.177 in.)
  
  Fig 2: Measuring Length Of Exposed Brushes
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  If the exposed length is less than the minimum, replace the brush holder assembly.

INSPECT GENERATOR ROTOR ASSEMBLY

Check that the rotor bearing is not rough or worn. If necessary, replace the rotor bearing.

Fig 3: Checking Rotor Bearing
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Check the rotor for an open circuit.

Using an ohmmeter, measure the resistance between the slip rings.

Standard resistance

TERMINALS RESISTANCE CHART

Condition	Specified condition
Approx. 20°C (68°F)	1.5 to 1.9 Ω

Fig 4: Measuring Resistance Between Slip Rings

G04052810

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the resistance is not within the specified range, replace the rotor assembly.

Check the rotor for a short to ground.

Using an ohmmeter, measure the resistance between the slip ring and rotor.

Standard resistance

TESTER CONDITION SPECIFIED CONDITION CHART

Tester condition	Specified condition
Slip ring - Rotor	1 MΩ or higher

Fig 5: Measuring Resistance Between Slip Ring And Rotor

G04052811

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the resistance is not within the specified range, replace the rotor assembly.

Using vernier calipers, 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.

Fig 6: Measuring Slip Ring Diameter
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT GENERATOR DRIVE END FRAME BEARING
1. Check that the drive end frame bearing is not rough or worn.
  If necessary, replace the drive end frame bearing.
  
  Fig 7: Checking Drive End Frame Bearing
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002