Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
+ 3. Cooling system
+ 4. Fuel system
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
+ 12. Brake system
+ 13. Body
- 14. Electric equipment and electroschemes
14.1. Filament lamps
14.2. Electric chains
+ 14.3. Detection of not closed chain
14.4. Safety locks
+ 14.5. Accumulator
- 14.6. Generator
14.6.1. Removal and generator installation
14.6.2. Replacement of brushes of the generator and tension regulator
14.6.3. Main malfunctions of the generator
+ 14.7. Starter
14.8. Replacement of bulbs of external lighting
14.9. Removal and installation of an additional signal of braking
14.10. Replacement of bulbs of internal lighting
+ 14.11. Devices of external lighting
+ 14.12. Adjustment of light of headlights
14.13. Removal and installation of a combination of devices
14.14. Removal and installation of switches of a steering column
14.15. Removal and installation of switches
14.16. Removal and radio receiver installation
14.17. Removal and installation of high-frequency loudspeakers
14.18. Removal and installation of low-frequency loudspeakers
14.19. Recommendations about phone installation
14.21. Check of a heater of back glass
+ 14.22. Explanations to electric circuits
+ 14.23. Schemes of electric equipment of the VW Golf car since September, 1997.
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In cars generators of an alternating current are established. Depending on model and the electric equipment established on the car generators of various capacity can be established. At installation of the additional electric equipment check, that capacities of the generator was enough for a food of this equipment.
The drive of the generator is carried out by a maple belt from a cranked shaft of the engine.
The generator represents the three-phase synchronous electric car with electromagnetic excitement. For transformation of an alternating current in constant the rectifier is built in the generator on diodes. Tension is regulated by the built-in microelectronic regulator of tension.
At operation of the generator the electric current proceeding on a winding of excitement, creates a magnetic stream round rotor poles. At rotor rotation under each tooth of a stator passes that southern, the North Pole of a rotor and the working magnetic stream passing through teeth of a stator, changes on size and tension. This variable magnetic stream creates an electromotive power in a stator winding. The wedge-shaped form of polar tips of a rotor is picked up in such a manner that allows to receive the form of a curve electromotive power close to the sinusoidal.
At high frequency of rotation of a rotor of the generator when tension of the generator becomes more than 13,6–14,6 In, the regulator of tension is locked and the current does not pass through a winding of excitement. Tension of the generator falls, the regulator opens and again passes a current through an excitement winding. The frequency of rotation of a rotor of the generator is higher, the it is more time of the locked condition of a regulator, therefore, the more strongly tension on a generator exit decreases. Process of locking and unlocking of a regulator occurs to high frequency therefore tension fluctuations on an exit of the generator are not appreciable, and it is almost possible to consider it to the constants supported at level of 13,6-14,6 Century.
At generator checks, and also at operation of the car it is necessary to observe a number of simple rules not to put the generator out of action.
Not to allow operation of the generator with disconnected from a generator clip the storage battery. Without the storage battery in an onboard network of the car there are dangerous impulses of an overstrain at shutdown of any consumers of the electric power. This pulse an overstrain can put out of action the electronic equipment of the car, including a regulator of tension and diodes of the vypryamitelny block of the generator.
Not to check operability of the generator on a spark even short-term connection of a plusovy clip of the generator with in weight. Thus via diodes the considerable current proceeds and they are damaged. To supervise tension of the generator it is possible only the voltmeter.
The minus of the storage battery should incorporate always to mass of the car, and plus be connected to a generator clip. Erroneous (return) turning on of the battery will immediately cause passing of the raised current via generator diodes, and they will fail.
Not to check diodes tension more than 12 In or megommetry as it has too high tension for diodes and they at check will be punched (there will be a short circuit). At check of isolation of electroconducting megommetry it is necessary to disconnect all wires from the generator.
It is necessary to disconnect all wires from the generator and from the accumulator at electric welding of any details of a body.
To check chains and knots of electric equipment and to eliminate malfunctions it is necessary at the idle engine and the disconnected storage battery.