/ / What is a generator brush, and what are they for?

What are generator brushes, and what are they for?

Generator brushes are an integral part of the systemsupply and discharge of electric current. Despite their small size, they are of great importance for the machine. After all, if the brushes do not function - the generator in the car will no longer produce tension. Accordingly, all electronic mechanisms will not function properly.

generator brushes

Remarkably, the generator brushes are usednot only in cars with gasoline and diesel ICE, but also in electric engines of trolleybuses and hoisting machines. In addition, this element is indispensable when using welding machines and many other tools working on electrical energy.

At the moment, all the generator brushesare made of graphite, and regardless of whether they are used on the machine or on a car. Now there is a huge number of models and varieties of these details. The coal brushes of the EG-4 model are widely used. They are no different from their counterparts. However, there are also such generator brushes, which are characterized by their special composition with special impregnation, which does not allow the mechanism to fail before the specified time. Usually they are used for high-speed electric motors. Often, these motors are equipped with generators of the EG 61 series. It is also worth noting that not all parts can fit a specific generator. The car starter and all electronic devices will not work if there are foreign brushes under the hood. Therefore, when choosing, always refer to the manufacturer's recommendations. Having learned the exact brand and model of the device, you can easily select the necessary part.

generator starter motor

If the purchase of special problems for motoristsdoes not arise, then the installation is quite the reverse. And that the generator brushes worked with maximum benefit, you should closely monitor the sequence of their work. In general, the replacement process is not very complicated. It consists of the following stages:

  • Dismantling the generator from the fasteners.
  • Remove the special plug from the brush holder.
  • Unscrewing the screw securing the last part (here it is desirable to use a small screwdriver, in order to speed up the replacement process).
  • Withdrawal of brush holder.
  • Installation of parts.
  • Assemblage of spare parts in the reverse order.

Also one of the frequently asked questions isreplacement period of brushes. To answer this question, you need to look at the detail externally and evaluate its degree of wear. To do this, take into account the distance to which the generator's brushes protrude from the holder. If this value does not exceed the mark of 5 millimeters, then the part is subject to urgent replacement.

generator in the car

Proceeding from this, it can be concluded that the brushgenerator, albeit a primitive detail, but without its presence it is already impossible to make a move on the car. You can start a car, but in this case all the load from electronic systems will be put on the battery. And she, as a rule, keeps the ignition without brushes for only a few minutes. Therefore, it is desirable to keep several sets of such devices in reserve so that in the middle of the road you do not have to call the tow truck.