No-Load Test
- Connect tachometer to engine. Start and run engine at 1500 RPM with no electrical load (foot off brake and doors closed). Read voltmeter when voltage stabilizes. This may require waiting a few minutes. Voltage should increase, but not greater than 2.5 volts more than base voltage.
- If voltage increases by at least 0.5 volt greater than base voltage, proceed to LOAD TEST. If voltage increase is greater than 2.5 volts, proceed to HIGH VOLTAGE TEST. If there is no voltage increase, or voltage increase is less than 0.5 volt, proceed to LOW VOLTAGE TEST.