No Load Test
- Attach suitable tachometer and start engine. Operate at 1500 RPM with no electrical load (foot off brake and doors closed).
- Voltmeter reading should be taken when needle stops moving. This may require a few minutes. Voltmeter reading should increase 1-2 volts above battery voltage. If OK, proceed to Load Test. If more than 2.0 volts increase, proceed to Over-voltage Test. If no increase results, proceed to Undervoltage Test.