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How is the car alternator maintained?

发布日期:2020-05-24 浏览次数:140

How is the car alternator maintained? Automotive alternators and regulators contain several electronic components, so use and maintenance care should be exercised:

1. Do not connect the positive electrode of the battery with iron

The alternator and the accumulator are made of negative electrode. When installing the battery, please do not mistake the polarity. Any type of automotive alternator is equipped with a diode in the form of a negative lead iron. Do not make a wrong connection between the regulator and the generator. Since there are many types of alternators for automobiles and the terminals of the alternators themselves are different, the connection between the two should be accurately judged. Otherwise, any one of the wires will be connected incorrectly, which will cause the regulator to burn out.

2. Do not allow the ac generator to fail

In the course of driving, when the generator does not produce electricity or the charging current is too small, the generator or regulator fails. At this point, the situation should be checked and troubleshooting.

3. Do not use a high-power soldering iron to weld the generator

The electronic components of alternators and regulators often burn out when they overheat. Therefore, when welding the connection of generator or voltage regulator or diode or triode, the power of electric iron should not exceed 45W. It should be noted that the spot-welding time during the welding process should not be too long.

4. During the operation of the generator, components or lines shall not be disconnected

The armature output is not allowed to be turned on while the generator is running, in case of voltage rise and breakdown of electronic components.

5. Please do not turn on the ignition for a long time when parking
When the engine stops running, the ignition switch should be turned off in time. Otherwise, the battery current through the regulator for a long time to make the generator excitation winding discharge, which may lead to winding, regulator and battery damage.
6. Installation and fastening, line connection is correct and reliable
The installation of the generator should be tightened and the line connection must be correct and firm. The pulley of the generator must be flush with the pulley of the crankshaft of the engine and the pulley of the water pump. The tightness of the belt should be appropriate; Belts and pulley should be kept clean to prevent grease.

7. Short circuit fire test method should not be used
During the inspection, the test method of short circuit between the armature column and the magnetic field column shall not be used to avoid damage to the diode and voltage stabilizer. When the diode is connected to the stator winding, the 220V AC shall not be used to check the insulation of the generator.

8. Correct voltage regulator

It is not allowed to connect "armature" and "magnetic field" at the two ends to keep the generator running.

9. Use the generator brush correctly

If the generator brush is worn by half, replace it with a new one. For a new brush, apply "00" sandpaper to the smooth surface of the ring, then hold the brush in your hand and slide it left and right along the ring. Push until the brush grinds out a cambered surface that matches the arc of the slip ring.