Generator -- Inspection |
| 1. INSPECT GENERATOR WITH CLUTCH PULLEY |
Hold the center of the generator with clutch pulley, and confirm that the outer ring turns counterclockwise and does not turn clockwise.
If the result is not as specified, replace the generator with clutch pulley.Text in Illustration 
Free 
Lock
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| 2. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY |
Using a vernier caliper, measure the brush length.
- Standard length:
- 9.5 mm to 11.5 mm (0.374 to 0.453 in.)
- Minimum length:
- 4.5 mm (0.177 in.)
If the length is less than the minimum, replace the brush holder assembly.Text in Illustration *1 Length
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| 3. INSPECT GENERATOR ROTOR ASSEMBLY |
Inspect that the bearing is not rough or worn.
If necessary, replace the generator rotor assembly.
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Check the rotor for an open circuit.
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
If the result is not as specified, replace the generator rotor assembly.Text in Illustration *1 Slip Ring
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Check if the rotor is grounded.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Rotor - Slip ring Always 10 kΩ or higher
If the result is not as specified, replace the generator rotor assembly.Text in Illustration *1 Slip Ring *2 Rotor Core
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Using a vernier caliper, measure each 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.)
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