Generator (For 100 A Type) Inspection

Using SST, hold the center of the generator pulley with clutch and check that the outer ring turns counterclockwise and does not turn clockwise.

SST

09820-63021

Text in Illustration

*a	Hold
	Free
	Lock

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.)

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

Check the resistance.

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)	3.4 to 3.8 Ω

   Text in Illustration

   *1

   Slip Ring

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




2. 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 MΩ or higher

   Text in Illustration

   *1	Slip Ring
   *2	Rotor Core

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

Using a vernier caliper, measure the slip ring diameter.

Standard diameter:

14.2 to 14.8 mm (0.559 to 0.583 in.)

Minimum diameter:

14.0 mm (0.551 in.)