The alternator is used to charge the battery,when the car is running, its kinda like a generator,the alternator supplies electrical energy to the electrical system when the engine is running.Also it compensates for the changing electrical load on the cars battery or electrical system while the engine is running.
This is how i put what i learnt in theory into partical, by doing a test on the alternator,regulator and testing the diodes on the rectifier.
this is how i took off the cover for the alternator, i had to remove the nut on B terminal and the insulator.
now i'm just removing the three nuts that hold the back cover,
this is what it looked like after the back cover off, you can now see the rectifier and the voltage regulator.
this is after the voltage regulator was off , here you can see the brushes which supply electricity to the slip ring.if they are to short the brush springs cant apply enough pressure to maintain constant contact.
now i was ready to take the rectifier off.and test the positive and negative diodes.
this is the rectifier that i took off.
this is the stator winding, and i did a resistance test, and also a ground test.
this is what the alternator looked like with the rectifier off.
this is when i was doing the test on the positive and negative diodes
now i was ready and finshed with all the tests and ready to put the alternator back together,
Over all the alternator failed the test due to the regulator, it had a reading of 14.6 on the voltage test. But the spec was 14.4 so thats why it failed.
No comments:
Post a Comment