Skoda Felicia

since 1994 release

Repair and operation of the car



Skoda Felicia
+ Cars of the Skoda Felicia brand
+ Maintenance instruction
+ Routine maintenance
+ Repair of the engine
+ Cooling systems, heating
+ Power supply system
- Engine electric equipment
   - Systems of a charge and start
      General information and precautionary measures
      Check of a state and battery charging
      Removal and installation of the rechargeable battery
      Check of serviceability of functioning of system of a charge
      Removal and installation of the generator
      Replacement of the module of the brush holder/regulator of tension
      Check of serviceability of functioning of system of start
      Removal and installation of a starter
      Capital repairs of a starter
   + System of ignition of petrol engines
   + System of preheat of diesel engines
+ Coupling
+ Transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body and finishing of salon
+ Onboard electric equipment





Removal and installation of the generator

Longitudinal section of the generator

1 — the Forward cover
2 — the Back cover
3 — the Board with diodes
4 — Contact rings
5 — the Back bearing
6 — the Brush holder
7 — tension Regulator
8 — Brushes

9 — the Stator with windings
10 — the Rotor
11 — the Forward bearing
12 — the Pulley
13 — the Nut
14 — Krylchatka
15 — a rotor Winding


Scheme of connection of windings of the generator

1 — tension Regulator
2 — an excitement Winding
3 — a stator Winding

4 — "Positive" vypryamitelny diodes
5 — "Negative" vypryamitelny diodes
6 — excitement winding Diodes


On the considered cars the synchronous generator of alternating current with the built-in rectifier is used.

All generators which are essentially used to a complete set (see Specifications) are arranged equally. The partial longitudinal section of the generator is presented on an illustration, the scheme of connection of windings - on an illustration below.

The case of the generator consists of two covers (forward and back), the bolted three long through M5. In the case the stator is not movably fixed. Three wire windings connected among themselves by a triangle are reeled up on the isolated metal plates of the stator. Windings of the stator are connected to nine vypryamitelny silicon diodes placed on payments and arms in the generator case. Diodes carry out straightening of the alternating current generated in windings.

In both covers of the case of the generator it is placed on the ball bearing in which the rotor shaft is put. On a shaft of a rotor the magnets of a characteristic "klyuvoobrazny" form covering an excitement winding are fixed. On the same contact rings are established to a shaft. Rings are isolated from a shaft and connected to excitement winding conclusions.

The sprung coal brushes rest against contact rings. One of 5.shchetok is connected to the D+ plug, the second - to the D-plug. Wires from both plugs are removed outside through a back cover. At inclusion of ignition when the engine is not started yet, the following electric chain is powered: the positive plug of the battery - contacts of the switch of ignition - a control lamp - tension regulator - a winding of excitement of the generator - weight. At the same time the control lamp in an instrument guard of the car joins.

Upon completion of start of the engine when the frequency of rotation of a bent shaft exceeds 900 rpm, the generator is excited and begins to develop the alternating current straightened then diode assembly. On the plug D + at the same time there is tension and as there is no difference of potentials on a control lamp any more, it dies away. Current comes to an excitement winding via three diodes (6) and the regulator of tension. The diodes called by excitement diodes work similar to diodes (4) and (5), with only that difference that their loading is only the winding of excitement and the regulator of tension in view of what they it is less by the size and do not need heat-removing radiators.

Current between the generator and the rechargeable battery can flow only in one naprvleniye - from the generator to the battery. Into the opposite side it is not allowed by diode vypryamitelny assembly.

The size of tension created by the generator is regulated by change of current of excitement in a rotor winding. This function is performed by tension regulator.

Pulley in krylchatky an obduva fasten on a rotor shaft by means of a zakontrenny nut of M14.

The arm of an adjusting level of correction of effort of a tension of a driving belt fastens on a head of cylinders by means of a nut of fastening of a head. A nut of a navernut on M8x20 bolt.

REMOVAL

 PERFORMANCE ORDER

1. Disconnect a negative wire from the battery.
2. Take off a belt of the drive of auxiliary units from a generator pulley.


Models of 1.3 l

 PERFORMANCE ORDER

1. Remove a protective cap, remove a nut with washers and throw off the food wire plug from a contact hairpin of the generator.

2. Disconnect an alarm wire from the generator.

3. Give a bolt(s) of the top support of the generator.

4. Release a nut of a bolt of fastening of the lower support and turn assembly of the generator to a radiator for the purpose of providing sufficient working space.

5. Turn out the lower through bolt and remove the generator from a basic arm.


Diesel models and models of 1.6 l

 PERFORMANCE ORDER

1. Disunite the socket of an alarm wire on the generator.

2. Remove a protective cap, give a nut, remove washers and disconnect the food wire plug from the generator.

3. Turn out bolts of the lower and top support of the generator, then remove the generator from the arm. At the corresponding complete set turn a roller of a natyazhitel of a driving belt of the generator outside, providing access to a bolt of the lower support.

All models

 PERFORMANCE ORDER

If there is a need with removal of the module of the brush holder/regulator of tension, address materials of the Section Replacement of the Module of the Brush Holder/regulator of Tension.

INSTALLATION

 PERFORMANCE ORDER

1. Installation is made upside-down. Track correctness of laying and adjustment of a natyazhiyeniye of a driving belt.
2. Tighten all fixture with the required effort.