ГЕНЕРАТОР ПРОВЕРКА

INSPECT GENERATOR WITH CLUTCH PULLEY

1. 

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

   Table 1. Text in Illustration

   	Free
   	Lock

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

INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

1. 

   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.)

   Table 2. Text in Illustration

   *a

   Length

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

INSPECT GENERATOR ROTOR ASSEMBLY

1. 

   Check that the generator rotor bearing is not rough or worn.

   If necessary, replace the generator rotor assembly.

2. Check the generator rotor assembly 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

      Table 3. Text in Illustration

      *a

      Slip Ring

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

3. Check if the generator rotor assembly 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

      Table 4. Text in Illustration

      *a	Slip Ring
      *b	Rotor Core

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

4. 

   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.)

   Table 5. Text in Illustration

   *a

   Diameter

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