Charging Circuit Without Load

Charging circuit test connections:

CHARGING CIRCUIT WITHOUT LOAD

HINT: If a battery/generator tester is available, connect the tester to the charging circuit as per the manufacturer's instructions.

1. If a tester is not available, connect a voltmeter and ammeter to the charging circuit as follows:
- Disconnect the wire from terminal B of the generator and connect it to the negative (-) lead of the ammeter.
- Connect the positive (+) lead of the ammeter to terminal B of the generator.
- Connect the positive (+) lead of the voltmeter to terminal B of the generator.
- Ground the negative (-) lead of the voltmeter.

2. Check the charging circuit as follows:
With the engine running from idle to 2,000 rpm, check the reading on the ammeter and voltmeter.

Standard amperage:
10 A or less

Standard voltage:
At 25 °C (77 °F): 13.7 - 14.7 V
At 115 °C (239 °F): 13.2 - 14.0 V

If the voltmeter reading is greater than the standard voltage, replace the voltage regulator.







If the voltmeter reading is less than the standard voltage, check the voltage regulator and generator as follows:
- With terminal F grounded, start the engine and check the voltmeter reading of terminal B.
- If the voltmeter reading is more than the standard voltage, replace the voltage regulator.
- If the voltmeter reading is less than the standard voltage, check the generator.