How to maintain your car alternator
Virtually all cars built in recent years have ac generators, commonly known as alternators.The electrical system of the alternator is a high efficiency in obtaining the most electric power from a minimum drawing on engine output. It has been called the ultimate power source for automotive useThe alternator provides the potential for a life of the battery in addition to its main advantage. - Higher production. The higher yield is due to the relatively low weight of the rotor assembly and the coil allowing greater pulley ratios for higher speed. The result, of course, is higher production - even at engine idle. Maintaining the advantage of another gives your electrical system is just a question of the alternator and keep up air.The alternator is not more difficult to adjust the generator. If the problem is obvious, you do not have the habit of replacing the entire unit. The unit is broken into two parts - the stator and rotor -. Allowing you to replace the one that bothersIn many cases, you do not even have to replace one of these key elements. A common problem, low yield is normally assigned to one of two things :. A fan belt slipping or defective diodes (rectifiers)belt tensionFan is essential to the alternator. Always make sure that the belt is in good condition and suitable for the specification.The only precaution you need to keep in mind when working with the alternator guard against polarity reserves. Alternator polarity of reserve or battery, even for a moment and you a chance to burn rectifiers. To prevent accidental grounding, moreover, always use insulated tools when working in the field of the alternator.After adjusting the fan belt, turn your attention to the regulator. Make sure all connections to this unit are tight. Follow this by checking the status of the regulator points. If you find they are burned or pitted, you should replace the regulator. Now, check and tighten all connections, including those to the ignition switch, the ballast resistor, the regulator and the conductive surfaces of the fuse and the support.Unscrew the brushes of the generator and inspect for wear. If worn, replace them.In some cars, the brushes can be removed from the alternator with the unit in the car. Unscrewing the outer screws in which the brushes are attached, is. In other cars, the device must be removed from the car to reach the brushes, which can then be unscrewed.If it becomes necessary to disassemble the unit, remove it from the car and split it open, separating the stator of the rotor. Test the rectifiers first. This can be done with a commercial diode tester, but you can also use a continuity tester, such as tester or a lamp that plug into household current.If a diode is defective, it must be replaced. This requires special tools and should be left to professional shop.Next Inspect wiring the stator carefully for breaks. To be absolutely sure that there is not one, you should test the stator leads to the stator core with a 110-volt test light or other suitable tester. If the witness, the stator is grounded and must be replaced.Finally, test the field windings in the rotor portion of the alternator. This is done with an ammeter connected to the alternator output terminal battery while rotating the rotor shaft by hand. The draw to the correct field current lot must be registered on the meter. This reading is different from car to car, so check the manual for your service.The above description tells you what to do if you do not receive the output of the alternator. However, there are things a viciously adjusted or faulty alternator can cause -. Most can be checked on the car
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