You make check in the following order:

– check and if necessary adjust a generator drive belt tension;

– connect the voltmeter to plugs of the rechargeable battery;

– watching indications of the voltmeter, launch the engine. Tension can fall in a starter operating mode to 9 V;

– increase the frequency of rotation of the engine up to 4000 min.-1, at the same time tension has to increase to 13,7-14,6 B that indicates normal operation of the generator and regulator of tension;

– with a frequency of rotation of the mines-1 engine 4000 turn on driving beam of headlights or other powerful consumers of the electric power, at the same time power failure has to make no more than 0,4 In;

– in case of considerable deviations of tension when checking check the generator in a specialized workshop.

Removal of the generator

You make removal in the following order:

– disconnect a "minus" wire from the plug of the rechargeable battery;

PREVENTION At the same time from memory of electronic memory devices information is erased.

Fig. 15.1. Fastening of the generator of the carburetor or eight-valve engine of the car with system of injection of fuel: 1, 7, 10 – a bolt; 2 – eye; 3 – tension level; 4 – adjusting nut; 5 – M8x35 bolt; 6 – generator; 8 – arm; 9 – krylchatka; 11 – pulley; 12 – driving belt; 13 – washer; 14 – nut

Fig. 15.2. Fastening of the generator of the sixteen-valve engine of the car with system of injection of fuel: 1 – fixing hairpins; 2 – tension level; 3 – bolt; 4 – arm; 5 – generator; 6 – krylchatka; 7 – pulley; 8 – driving belt; 9 – washer; 10 – nut

– weaken a bolt of fastening of the generator to an arm and bolts of 4 (fig. 15.1) or 3 (fig. 15.2) of adjustment of a tension of a belt, then turn the generator to the engine;

– take off a belt 12 (see fig. 15.1 ) or 8 (see fig. 15.2 ) from a pulley 11 (see fig. 15.1 ) or 7 (see fig. 15.2 ) the generator;

Fig. 15.3. Bosch generator: 1 – nut; 2, 4, 12 – a washer; 3 – pulley; 5 – remote plug; 6 – krylchatka; 7, 8, 17, 23, 26 – the screw; 9 – forward cover; 10 – bearing; 11 – holder of the bearing; 13 – segment spline; 14 – rotor; 15 – bearing; 16 – stator; 18 – block of diodes; 19 – plug; 20 – plastic plug; 21 – generator case; 22 – tension regulator with the brush holder; 24 – laying; 25 – condenser; 27 – nut; 28 – spring washer; 29 – a nut, 30 – a spring washer; 31 – laying; 32 – pro-rate

– note an arrangement of electric wires on a back part of the generator then disconnect them from the generator (fig. 15.3) ;

– take a bolt of fastening of the generator to an arm and a bolt of adjustment of a tension of a belt and remove the generator;

– turn off and remove a fixing arm 8 (see fig. 15.1 ) or 4 (see fig. 15.2 ).

Repair of the Bosch generator

In the course of repair of the generator you remember:

– that the diodes placed in the generator are sensitive to high temperature. In case of need their replacements in the course of the soldering it is necessary to hold their conclusions metal tweezers which take away heat from a soldering iron sting, and also to limit soldering time to a necessary minimum:

– do not use an ungrounded electric soldering iron as in case of damage of its isolation it will cause breakdown of vypryamitelny diodes of the generator;

– in the course of control tests of the generator of supply voltage should not exceed 14B;

– in the course of check of vypryamitelny diodes it is possible to use a direct current no more than 24 V;

– for cleaning of details use only gasoline. At once after cleaning of details (especially windings) dry them a stream of compressed air.

You make dismantling in the following order:

– turn off a nut 1 (see fig. 15.3 ) a rotor shaft, remove from a shaft a pulley 3, a krylchatka 6 and an expansion washer. At an otvorachivaniye of a nut hold a pulley from a provorachivaniye, having established a face key in a shaft end face;

– remove from a shaft a segment spline 13;

– unscrew screws 23 and remove tension regulator together with brushes 22;

– note mutual position of the case 21 and a forward cover of the 9th generator, unscrew screws 7 and remove a forward cover of the generator together with a rotor 14. At removal of a forward cover, she can be hit the hammer with plastic brisk;

Fig. 15.5. Expression of a rotor from a forward cover

– using a stripper with three captures, squeeze out a rotor from a forward cover. At expression of a rotor of perhaps vyryvany fastening of screws of a plate of the holder of the bearing therefore captures of a stripper need to be established under the holder's plate (see fig. 15.5 );

– having unscrewed screws, remove a plate of the holder and squeeze out the bearing;

– using a stripper, remove the bearing 15 (see fig. 15.3 ) from contact rings of a rotor. Establish captures of a stripper on an internal ring of the bearing;

– disconnect the block of diodes 18 from the stator 16, previously having unsoldered wires;

– check a condition of windings and contact rings of a rotor.

You make assembly of the generator in the sequence, the return dismantling.

Repair of the Valeo generator

Fig. 15.4. Valeo generator: 1 – nut; 2, 5, 7 – a washer; 3 – pulley; 4 – remote plug; 6 – krylchatka; 8 – ring; 9 – forward cover; 10, 15 – the bearing; 11 – holder of the bearing; 12 – ring; 13 – segment spline; 14 – rotor; 16 – stator; 17 – ring; 18 – plastic plug; 19 – case; 20 – block of diodes; 21 – back cover; 22 – rack; 23 – tension regulator with brushes; 24 – condenser

Dismantling and assembly of the Valeo generator are similar to dismantling and assembly of the Bosh generator. The device of the Valeo generator is shown on rice 15.4 .

Installation

You carry out installation to the sequences, the return to removal. Before final tightening of bolts of fastening of the generator adjust a tension of a driving belt.