10.4.5. Repair of the generator

It will be required to you: face heads "on 8" and TORX E6, the extender, a neck, small beards, a soldering iron, a tester, a stripper for the rotor bearing.

1. Remove the generator from the car (see. "Removal and installation of the generator").

2. Remove a generator pulley from a rotor shaft (see. "Replacement of a pulley of the generator") …

3. … and remote plug.	4. Mark a relative positioning of the stator and covers of the generator.

5. Push to small beards in a generator cover two clamps …	6. … also remove a side protective cover.

7. Similarly push inside two clamps of a protective cover of the back bearing of the generator …	8. … also uncover.

9. Turn out three coupling screws of covers of the generator …	10. … also uncover the party of the drive.

11. Remove the remote plug and a krylchatka of the fan from a rotor shaft …	12. … also take out a rotor from a cover from contact rings.

NOTE Examine contact rings of a rotor. If on them there are teases, risks, scratches, wear tracks from brushes, grind rings.

13. Unsolder three conclusions of a winding of the stator from the vypryamitelny block …	14. … also take out the stator from a cover.

15. For removal of the vypryamitelny block and the regulator remove stress the protection cover. For this purpose push two clamps in a cover …	16. … also remove a casing.

17. Turn off a nut …	18. … also take out a contact bolt from a cover.

19. Turn out four bolts of fastening of the vypryamitelny block and the regulator of tension …	20. … also take out them from a cover.

21. Unsolder tension regulator conclusions from the vypryamitelny block …	22. … also disconnect tension regulator from the block.

23. Uncover the brush holder, having wrung out three clamps of its fastening.	24. Take out brushes from the brush holder case.

25. For removal of one of brushes unsolder its conclusion from tension regulator.

26. Examine a generator cover from the drive. If at rotation of the bearing the side play between rings, a rift or jamming of bodies of swing is felt, protective rings are damaged or there are lubricant dribble traces, replace the bearing. If cracks in a cover, especially in places of fastening of the generator are found, it is necessary to replace a cover new.

27. For replacement of the forward bearing to its vypressuyta from a cover.

28. Press the new bearing in a cover a mandrel of suitable diameter, putting effort to an external ring.

29. Check ease of rotation of the bearing from contact rings. If at rotation of the bearing the side play between rings, a rift or jamming of bodies of swing is felt, protective rings are damaged or there are lubricant dribble traces, the bearing should be replaced. For this purpose …

30. … press the bearing a stripper from a shaft of a rotor and establish new, putting effort to an internal ring.	31. Check a tester rotor winding resistance, having connected it to contact rings. Resistance has to make about 2 Ohms. If the tester shows infinity, so in windings the break and needs to be replaced a rotor.

32. Check short circuit of a winding of a rotor for "weight". For this purpose connect tester probes to a pole of a rotor and serially to contact rings. The measured resistance has to be infinitely big, otherwise replace a rotor.	33. Check stator windings for break, serially measuring by a tester resistance between all conclusions of windings. If the measured resistance strives for infinity, then it is necessary to replace the stator.

34. Connect tester probes to the case of the stator and serially to each conclusion of windings. The measured resistance has to be very big (to strive for infinity). Otherwise replace the stator.	35. Check the vypryamitelny block. For this purpose connect tester probes to a conclusion of a phase winding of the stator and an air radiator of diodes. Interchanging the position of tester probes, measure resistance. If indications of a tester are identical in both cases, the vypryamitelny block is faulty and demands replacement.

36. Similarly check two other diode chains of the generator.

37. Collect the generator as it should be, the return to dismantling, having oriented covers of the generator and the case of the stator on earlier made tags. Before installation of a cover from contact rings drown brushes and record them in such situation, having inserted a pin of suitable diameter into a cover opening. After assembly take a pin.