Attention! When installing additional equipment, check whether the power of the old generator is sufficient, if necessary, install a more powerful generator and battery. The generator is driven by the crankshaft through a V-belt. In the diesel engine, a brake booster vacuum pump is additionally installed on the generator shaft. The generator rotor with field winding rotates inside the fixed stator winding at a speed twice the number of revolutions of the crankshaft. The excitation current flows through the carbon brushes and slip rings through the excitation winding. This creates a magnetic field.
The position of the magnetic field in relation to the stator winding is constantly changing, according to the rotation of the rotor. Due to this, an alternating current is generated in the stator winding.
Since the battery can only be charged with DC current, the AC is converted to DC in the rectifier on the diode board. The voltage regulator changes the charging current by switching the excitation current on and off, in accordance with the state of charge of the battery. At the same time, the regulator keeps the battery voltage constant at 14 V, regardless of the speed.
Attention! Depending on the type, the generator can be a returnable element, which means that the cost of the old generator can be offset when buying, while the old generator is rented to the manufacturer.