Generator Assembly Bench Check CS-130

This test requires both a fully charged battery and a generator test stand in order to operate the generator. The generator can be tested quicker and easier while the generator is still on the vehicle. Refer to Generator Not Operating Properly .

1. Ensure the carbon pile is off before making connections as shown.

•	The ground polarity of the generator and the battery must be the same.

•	The battery must be fully charged.

•	Use a 30-500 ohm (ohms) resistor between the battery and the L terminal of the CS-144 generator. (On the CS-130 D generator, the connection is made to the B terminal.)

2. Slowly increase the generator speed and observe the voltage.
3. If the voltage is uncontrolled and increases above 16 volts, then the rotor field is shorted, the regulator is not working properly, or both. A shorted rotor field coil can cause repeat regulator failure.
4. If the voltage is below 16 volts, increase speed and turn on and adjust the carbon pile in order to obtain maximum amperage output. Maintain the voltage above 13 volts.
5. If the output is within 15 amperes of the rated output, then the generator is good. If the output is not within 15 amperes of the rated output, then replace the generator.