W203 since 2000 of release
Repair and car operation
+ Mercedes-Benz Cars of a class C (W-203)
+ Operation manual
+ Routine maintenance
+ cooling and heating Systems
+ Power supply system and release
- Engine electric equipment
+ ignition and engine management System
+ System of preheat of the diesel engine
+ Diagnostics of systems of electronic control and diagnostic equipment
- Charge and start systems
The storage battery - the main data and acquisition of the new battery
Check and charging of the storage battery
Replacement of the storage battery
Storage of the storage battery
Charging system - general information and security measures
Check of system of a charging
Removal and generator installation
Removal and installation of a regulator of tension. Replacement of brushes
System of start of the engine - the general information and precautionary measures
Removal and starter installation
Removal and installation of the traction relay of a starter
Check of system of start of the engine
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Onboard electric equipment
Charging system - general information and security measuresIn the car the generator of an alternating current is 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 ridge 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, a regulator 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 13.6. – 14.6 Century.
The system of a charging does not demand periodic service, however a driving belt, the storage battery and wires with sockets should be served according to 1 intervals given in Chapter.
At ignition inclusion on a control panel the control lamp signaling about a discharge of the accumulator should light up. It should die away at once after engine start. If it does not die away or lights up during movement, the system of a charging is faulty. If the lamp is not lit at ignition inclusion, or the lamp fused, its conducting is torn off or the generator is faulty.
Security measures at work with the generator
Before making any works on charging system, it is necessary to familiarize with the following security measures: