Test steps for generator sets

Testing procedure

Step 1: Check whether the connection parts of each external conductor of the generator are broken, wrongly connected or short-circuited, and use a Voltmeter to measure whether there is battery voltage at point B+.
Step 2: Turn the key door to the "open" position, but do not start the engine. At this time, use a Voltmeter to measure whether there is voltage at D+point, and observe whether the charging indicator is bright.
Step 3: Start the engine and measure the voltage at the B+point of the engine with a Voltmeter, which should reach the following values
Step 4: Turn on some loads, such as car lights
Step 5: Turn on the main electrical appliances such as air conditioning and car lights
In the third step, the generator has no voltage output, so the following methods can be used to check. For the generator with excitation D+point, a 2.5mm2 lead wire can be led from the positive pole of the battery. After starting the engine, click the D+point with the other end (within 1s), and then use a Voltmeter to measure whether there is voltage output at B+point. If there is, check from the third step to the fifth step, At the same time, it is determined that there is an open circuit in the charging indicator light circuit of the entire vehicle (usually due to damaged indicator lights, loose instrument panel rod connectors, and open circuit in the circuit). If there is no voltage output, there is a failure of the generator to generate electricity.

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