External manifestations of malfunctions of system of power supply following:

- there are no signs of a charging of AB;

AB is discharged in use, but signs of violation of operation of the generator are not present;

AB is recharged;

- the generator at work publishes strong noise;

- the control lamp of a discharge of AB does not light up at ignition inclusion.

If there are no signs of a charging of AB, the reasons can be the following:

- a safety lock peregoraniye in a chain of excitement of the generator;

- easing or damages of a driving poliklinovy belt of the generator;

- break or short circuit in wires;

- malfunctions of a regulator of tension;

- malfunction of the voltmeter or chain of a control lamp of the category.

If AB is discharged in use, but signs of violation of operation of the generator are not present, the reasons can be the following:

- the wrong actions at starter inclusion;

- energy overexpenditure;

- weakening of contact connections;

- the insufficient size of tension developed by the generator (because of a faulty regulator of tension or a weak tension of a driving belt);

If AB is recharged, the reasons can be the following:

- the tension regulator is faulty;

- short circuit of a conclusion of a winding of excitement of the generator on "weight".

If the generator at work publishes strong noise, the reason of it can be:

- break of one of stator windings;

- malfunction of the vypryamitelny block;

- weakening of a nut of fastening of a pulley;

- pollution of contact rings and brushes;

- lack of greasing in bearings.

It is independently possible to check only a tension of a driving belt of the generator and a condition of coal brushes of the generator. All other verifying works should be carried out on HUNDRED.