Generator — device (Peugeot 605)

PEUGEOT 605 is equipped with a Valeo, Bosch or Mitsubishi alternator (see illustrations 4.0, 4.0a and 4.0b).








The alternator, despite its small size, produces a fairly large amount of electricity. Already at idle speed, approximately 25 A flows from the generator to the on-board network, and at engine speeds of 2400 rpm, the generator performance is almost maximum. The service life of the carbon brushes of the generator is over 100,000 km.

The generator, as its name suggests, can only produce alternating current. However, the on-board network needs a constant one, because the battery is a source of direct current. Therefore, the generator has a built-in diode rectifier unit that converts alternating current to direct current. Rectifier diodes are quite sensitive to voltage clicks.

In order to ensure that even at low engine speeds the performance of the generator is sufficient, the rotation speed of the generator is greater than that of the crankshaft. This is achieved by installing a smaller diameter belt pulley on the generator shaft than the generator drive belt pulley on the crankshaft shaft. The voltage regulator is mounted on the rear side of the generator.

When working on the generator, certain precautions must be observed:

• Do not disconnect the battery or voltage regulator while the engine is running. In such cases, voltage peaks are formed that damage electronic devices.
• Do not short the generator excitation terminal or the wire from this terminal to «mass» (-).
• Do not reverse the voltage regulator wires.
• Do not turn on the voltage regulator if it is shorted to «mass» (-). In this case, it will be damaged.
• Do not remove the generator without first disconnecting the battery completely or at least the terminal «masses» (-). Otherwise, damage beyond repair is inevitable.
• Do not use a test light connected to a 110 or 220 V mains supply. A 12 V test light is allowed.
• Disconnect the wires from the battery when charging it with a charger without removing it from the vehicle. Instead, connect the charger wires, observing polarity. If the polarity is not observed, the rectifier, voltage regulator, and electronic devices are damaged.