The repair method for a gasoline generator that is not producing electricity is as follows:
1. Check and correct wiring errors according to the circuit diagram.
2. The windings are poorly connected, resulting in incorrect polarity. This needs to be checked and corrected. The rotating silicon rectifier element is short-circuited and conducts in both the forward and reverse direction. and reverse resistance of the rectifier element and replace it if damaged.
3. The main generator excitation winding is disconnected. Use a digital multimeter to check and measure the main generator excitation winding. The resistance is infinite and must be connected to the excitation line.
4. The windings of the small and medium-sized automobile gasoline generator or exciter of the main motor are severely short-circuited, and there is usually overheatinge important. A short circuit of the excitation winding can be judged by the resistance of its main and tributary currents. Damaged windings must be replaced.
Tips
Use a digital multimeter to check the voltage range. Turn the digital multimeter knob to the DC voltage range of 30 V. Connect the red test lead to the synchronous motor terminal. the generator set and the black test lead to the chassis. Let the engine run at medium speed, the voltage standard of 12V electrical system should be about 14V, and the voltage standard of 24V electrical system should be about 28V. If the measured voltage is the voltage of the battery, this means that the generator is not producing electricity.