Generator Checks (VAZ-21011)

the "minus" of the battery must always be connected to ground, and the "plus" must be connected to the "30" terminal of the generator. Incorrect reverse connection of the battery will immediately cause an increased current through the generator valves, and they will be damaged.

The generator must not be operated with the battery disconnected. This will cause short-term overvoltages on the generator terminal "30", which may damage the rectifier valves and electronic devices in the vehicle's on-board network.

It is forbidden to check the generator's performance "for a spark" even by briefly connecting the generator's clamp "30" to ground. In this case, a significant current flows through the valves, and they are damaged. The generator can only be checked using an ammeter and voltmeter.

Generator valves must not be tested with a voltage higher than 12 V or with a megohmmeter, as it has a voltage that is too high for the valves, and they will be broken during testing (a short circuit will occur).

It is prohibited to check the vehicle's electrical wiring with a megohmmeter or a lamp powered by a voltage greater than 12 V. If such a check is necessary, then the wires should first be disconnected from the generator.

The insulation resistance of the generator stator winding should be checked with increased voltage only on a test bench and necessarily with the phase winding terminals disconnected from the valves.

The wire connected to the generator plug "67" should not be confused with the wire connected to the plug of the central terminal of the stator winding. If you mistakenly swap the wires, fuse 10 will burn out (see Fig. Fuses and fuses) and the voltage regulator contacts will be damaged.

When electric welding vehicle body components and parts, the wires should be disconnected from all terminals of the generator and battery.