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Q: What does a brush do in a alternator?
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What is a brush and how many of them are there in an alternator of a motor vehicle?

What is a brush and how many of them are there in a alternator of a motor vehicle?


Why battery die while driving no light came on?

Check all electric system, mainly alternator. Alternator's brush may be worn out.


How do you fix the brush in alternator?

Instead fixing the brush, it is advisable to replace the brush, unless you are referring to the brush case, or the connection of the brush, or something else related. It the brush is blocked, use an appropriate spray to release it, or both brushes. Watch closely on the brush spring also, it might not to be blocked as well.


What is the function of the brush holder in the alternator?

The brush holder in an alternator keeps the brushes held to slip rings with spring pressure (or commutators in generators or some motors) which provide electrical contact to electromagnets in the spinning rotor. By varying the electrical current through the brushes to the rotor magnets, you can adjust the power output of the alternator as needed.


Where is the voltage regulator in a 1999 Mitsubishi Montero?

Voltage regulator is built into the Alternator/brush carrier. Requires removal and at least partial dis-assembly of the Alternator to change out. Good luck.


What does it mean if your car battery stays on even after you have replaced it?

The most probable cause is a bad connection somewhere in the alternator > battery circuit. Check if the alternator is operational. Clean all contacts with a steel brush.


What causes the battery light to be on with a new good battery in 1997 Mazda protege?

the common cause why the light is on is that your alternator is not working well,try to have your alternator checked .may be the carbon brush is already worn out.


The fan light brake light and the battery charge light comes on on your dashboard what is it or why?

Is it possibly a broken/missing alternator or serpentine belt? (nope just alternator light) It can also be a failing voltage regulator within the alternator, or a failing alternator itself. It is usually the carbon brushes in the alternator when both lights come on, it indicates a field problem with alternator Brushes are not to hard to change on a toyota, just remove the alternator from car, remove rear cover unscrew the brush holder and rectifier?(they are attached together) and install new brushes... you will need a soldering iron. It is a simple repair and at less than 10$ is more affordable than replacing the alternator. VW and Volvo have removable brush holders that unscrew from back of alternator Gm Ford and Mopar, you may have to split alternator to change brushes, there is often a small hole in back of alternator where you can use a piece of wire to keep brushes compressed when you put alternator back together easy job ... save your money


Is it necessary to repair the carbon brush?

If you allready have alternator apart, you might as well. But if you can determine that brushes have alot of life left; it's your call.


Why is your battery light on in your Toyota 4-runner?

The battery is not charging, probably because the alternator has no output. Exchange alternators are readily available but not cheap. Check alternator belt tension. Remove, inspect and replace alternator carbon brush pack as necessary. After that, if still not charging, swop out the regulator.


How dc supply is applied to field coil in a brush less alternator?

Through a coupled inductor, similar to a transformer, but working on DC instead of AC.


Is it possible to bypass the box on the back of the alternator?

i presume you are talking about the rectifier regulator and the answer is no it would not charge a battery without this if you don't know what the part is i dought you will be able to know what is wrong with your alternator you could have winding problems or brush problems also