Repair and Toyota Corolla car operation - 3.3.12. Generator details//Toyota Corolla of 1992-1998 /

Toyota Corolla

1992-1998 of release

Repair and car operation



Toyota Corolla
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines
   + 3.2. Diesel engine
   - 3.3. Engine electric equipment
      3.3.1. Specifications
      3.3.2. Battery
      3.3.3. Power cables
      3.3.4. Ignition system
      3.3.5. Ignition coil
      3.3.6. Ignition distributor
      3.3.7. Check and installation of the moment of ignition
      3.3.8. Block of electronic ignition
      3.3.9. Induction sensor
      3.3.10. System of a charge of the battery
      3.3.11. Generator
      3.3.12. Generator details
      3.3.13. System of start-up of the engine
      3.3.14. Starter electric motor
+ 4. Systems of cooling, heating
+ 5. Fuel, exhaust systems
+ 6. System of decrease in toxicity
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Suspension bracket and steering
+ 11. Body
+ 12. Electric equipment



3.3.12. Generator details


GENERAL INFORMATION

Check of diodes of a positive branch of the vypryamitelny bridge

а) For cars from the USA:
1. Ohmmeter
2. Positive conclusion
3. Conclusions of diodes
b) For cars from Canada:
1. Ohmmeter
2. Positive conclusion
3. Conclusions of diodes

Check of diodes of a negative branch of the vypryamitelny bridge

a) For cars from the USA:
1. Ohmmeter
2. Negative conclusion
b) For cars from Canada:
1. Ohmmeter
2. Negative conclusion

Dismantling

PERFORMANCE ORDER
1. Remove the generator (see subsection 3.3.11), put the generator on a pure desktop.
2. Unscrew nuts of a back cover, a nut of a conclusion of the generator, remove the insulating plug of a conclusion and a back cover.
3. Unscrew five screws of fastening of a regulator of tension and a shchetkoderzhatel (are specified by shooters).
4. Remove a regulator of tension and a shchetkoderzhatel from a back flange of the case of the generator. If you are limited only to replacement of a regulator of tension, perform works according to item 8, establish a new regulator, collect the generator and establish on the engine. If brushes change, be guided by the following item of the description.
5. Measure length of an acting part of brushes and compare to the limiting length specified in the section "Specifications". If length of a brush less maximum permissible, a shchetkoderzhatel assembled with brushes replace.

Prevention

On some cars replacement only brushes is provided by a way of their perepaivaniye.


6. Be convinced that brushes freely move in a shchetkoderzhatel.
7. Remove the rectifier (shooters specified screws of fastening of the rectifier). Remove four rubber buffers and a gryazeotrazhatel.
8. Put labels of mutual orientation of forward and back covers to facilitate assembly.
9. Unscrew a nut of fastening of a pulley on a rotor and remove a pulley.

10. Unscrew four nuts of fastening of a forward cover to a back flange, disconnect a back flange of the generator from a cover.
11. Remove a persistent washer and get a rotor from a forward cover.

Check of a condition of details

PERFORMANCE ORDER
1. Check resistance of a chain between two contact rings. Resistance should be within 2–4 Ohm.
2. Check a chain between shaft of a rotor and contact rings. The ohmmeter should show infinite resistance (contact between a rotor and rings should not be). If results of both checks unsatisfactory, or in case of the strengthened wear of rings a rotor replace.
3. Check resistance between conclusions of a winding of a stator. If resistance is great, or the ohmmeter shows break, the stator is subject to replacement. Check short circuit of windings of a stator on the case (core). If between conclusions of a stator and the case the ohmmeter shows final resistance, the stator is faulty.

4. Check diodes positive and branches of the bridge of the rectifier. For what positive щуп an ohmmeter put to the vyvodny probe (an arrow from above), and negative щуп to any of specified illustrations to a conclusion of diodes (the shooter from below).
5. Then change щупы in places and concern the same conclusions.
6. At the first connection the ohmmeter should show the closed chain, and at other – a rupture of a chain (see fig. Check of diodes of a positive branch of the vypryamitelny bridge). Similarly check resistance and between other conclusions. If at least one of diodes does not maintain tests, the diode branch is considered faulty.
7. Now check diodes of a negative branch of the vypryamitelny bridge for what negative щуп an ohmmeter put to a negative conclusion (See fig. Check of diodes of a negative branch of the vypryamitelny bridge), and positive щуп to any of rectifier conclusions. Then change щупы in places and concern the same conclusions. At the first connection the ohmmeter should show a rupture of a chain, and at other – the closed chain. Similarly check resistance between other conclusions. If at least one of diodes does not maintain tests, the diode branch is considered faulty.

Assembly

PERFORMANCE ORDER
1. Assembly is carried out upside-down, at observance of the following rules.
2. At establishment of a shchetkoderzhatel on a shaft wring out brushes a small screw-driver.
3. Screw screws of fastening of a regulator of tension and a shchetkoderzhatel in a back flange of the generator.
4. Establish a back cover and tighten three nuts.
5. Establish the insulating plug of the vyvodny probe, tighten a nut.
6. Establish the generator on the car.