Mercedes of the S-class W202
1993-2000 of release
Repair and operation of the car
+ 1.2. General information
+ 2. Maintenance
+ 3. Engines
+ 4. Lubrication system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. System of ignition
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
- 14. Electric equipment
14.1.2. Measuring devices
14.1.3. Technology of measurements
14.1.4. Checks of electric equipment
14.1.5. Sound signal
14.1.6. Replacements of safety locks
+ 14.1.7. Rechargeable battery
- 14.1.8. Generator
126.96.36.199. Diagnostics of malfunctions of the generator
+ 14.1.9. Starter
14.1.10. Traction relay
+ 14.1.11. System of lighting
14.1.14. Glow lamps on the dashboard
14.1.15. Light switch
14.1.16. Radio receiver
+ 14.1.17. Antenna
+ 14.1.19. Rubber brushes of screen wipers
14.1.20. Windscreen washer jets
14.1.21. The washing nozzles of headlights
14.1.22. Screen wiper and its engine
14.1.23. Protect the car
14.1.24. Anticreeping "immunodeficiency"
14.1.25. Why headlights grow dull
+ 14.2. Electrical circuitries
деревянные дома что и как лучше
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Engines of the Mercedes cars of the S-class work with the three-phase generator of alternating current. Depending on model and equipment generators of various power are installed.
The generator is put in action by means of a bent shaft and a maple belt. At the same time the rotor rotates approximately with the doubled frequency of rotation of a shaft of the engine by means of the winding of excitement located in rigidly established stator winding.
By means of coal brushes and contact rings current of excitement proceeds through an excitement winding. At the same time the electromagnetic field is formed. Position of the electromagnetic field constantly changes in relation to a stator winding according to rotation of a rotor. Thanks to it in a winding of the stator three-phase current is developed. But as the rechargeable battery can be charged only with a direct current, three-phase current will be transformed in constant by means of the rectifier installed on a diode payment. The regulator of tension changes charging current by means of inclusion and switching off of current of excitement according to degree of a razryazhennost of the rechargeable battery. At the same time the regulator supports to constants working voltage about 12 Volts irrespective of rotation frequency.
Safety measures at work on the generator of alternating current
At work on the generator of alternating current pay attention to points of data below instructions. You make complete dismantling and repairs of the generator of alternating current in specialized auto repair shop.
If the additional rechargeable battery is connected (for example, for simplification of launch of the engine), surely pay attention to that identical poles of rechargeable batteries among themselves connected.
At connection of the charger of a wire of the last connect to the corresponding plugs of the rechargeable battery. During charging disconnect from plugs of the rechargeable battery a wire from a flexible partition between a body and the engine and a positive wire.
Do not allow to work to the engine without rechargeable battery.
Never close накоротко the plug on the generator of alternating current and on the regulator.
Never you make a polarity reversal of the generator of alternating current.
Check of charge voltage of the generator
Replacement and check of coal brushes of the generator / regulator of tension
The regulator of tension is built in in the holder for coal brushes. Coal brushes can be replaced separately, some skill for this purpose is, however, necessary; on average they wear out after passing by the car about 120 000 km. We recommend to replace coal brushes slightly earlier.