The reasons why the generator is not producing electricity are:
(1) Diesel generators often lose their residual magnetism after shutdown. This is because the material used for the excitation poles is close to mild steel. and the residual magnetism is low. The magnetic field disappears when there is no current in the excitation winding after shutdown.
(2) The magnetic poles of the generator lose their magnetism.
(3) The field circuit components are damaged or the circuit is open, shorted or grounded.
(4) There is poor contact between the exciter brush and the commutator or insufficient pressure on the brush holder.
(5) The field winding is incorrectly wired and has opposite polarity.
(6) The generator brush and slip ring have poor contact or the brush pressure is insufficient.
(7) The winding of the stgenerator ator or rotor winding is in open circuit.
(8) Generator lead wire wiring is loose or switch has poor contact.
(9) The fuse is blown
In fact, there is a very small probability that the quality of the cylinder or oil is too poor!
1. First, with the engine running, check if the generator pulley can operate the generator.
2. If operation is normal, remove the positive battery terminal. If the car stalls immediately, it means the generator cannot produce electricity.
3. If the engine does not turn off, measure the voltage between the generator's positive output terminal and ground, increase the throttle, change the gear, and see if the voltage fluctuates. , and the voltage is about 12V, the generator is normal, otherwise there is a problem with the generator.
4. After judging that there is no problem with the genator, measure the output voltage of the voltage regulator while it is operating (note: you must also remove the positive terminal of the battery). This is the voltage, it means the output of generator and regulator is normal.
5. Otherwise, check the charging circuit, look at the fuses, plug and socket connectors, etc.
The automobile generator is the main source of power for the car. Its function is to power all electrical equipment (except the starter) when the engine is running normally (above idle speed) and to charge the battery. at the same time.