Brushes for the electric motor of a washing machine - purpose and replacement + Video

The washing machine is quite complicated. Its heart is the engine, which is an electrical device. The motor rotates the washing machine drum.

Electric motor The washing machine is not much different from other asynchronous electric motors and contains brushes in its design. Brushes for electric motors of washing machines need to be replaced from time to time.

Purpose of brushes for electric motors of washing machines

This is a small part, which consists of a soft long spring, a tip shaped like a parallelepiped or a cylinder, and a contact. Their main function is to transfer electrical energy to the rotor windings of the machine's electric motor. Due to this, its rotation occurs.

Brushes tend to wear out over time. This happens due to the fact that they fit tightly to the axis of the rotating rotor of the washing machine electric motor. Soft conductive materials are used for their manufacture. This is necessary so as not to damage the armature elements.

The main difference between electric motor brushes is their clamping element.It can be carbon-graphite, copper-graphite or electrographite. All motor brushes contain a steel spring and a copper contact.

Life time

The service life of these elements depends on the following factors:

• Correct use of the device;
• How often is washing done?
• Build quality;
• Machine drum load.

Washing machine motor brushes usually last quite a long time. Their service life is more than 5 years, and in some cases more than 10 years. It should be noted that replacement is performed infrequently. Much more often something more fundamental breaks down, which leads to the purchase of a new washing machine.

Replacing motor brushes

There are several signs by which you can determine that your washing machine needs new graphite rods:

1. Washing machine motor suddenly stopped working. If during operation of the washing machine there were no mechanical impacts on it and there were no sudden voltage drops, then most likely the brushes in the motor were worn out.
2. The appearance of crackling and noise during operation of the machine. In this case, it is most likely that the springs are already rubbing against the rotor of the washer, since the brushes of the electric motor have completely worn out.
3. The car's electric motor has lost power. This can be determined during the spin cycle. At this moment, the machine cannot gain the necessary speed and the laundry ends up remaining wet.
4. The washer smells of burning and burning wires.
5. The corresponding error code appears on the device display.

How to choose the right brushes for electric motors of washing machines?

Choosing them for the washing machine is not at all difficult. It is only important to take into account the following subtleties:

• The device usually uses two elements.
• The parts purchased must be exactly the same. This means that they must be made of the same material and also have the same spring stiffness. Otherwise, the washing machine motor may break down very quickly.
• They must match the motor model installed in your washing machine;
• The purchased spare parts must not contain defects.

Replacing brushes yourself

Replace them It's not difficult at all with a washing machine. However, this work must be approached very responsibly. During the repair process, you will need tools such as pliers, sandpaper and screwdrivers of various sizes.

Preliminary disassembly

Disassembling the washing machine consists of several stages:

• First of all, turn off the power to the machine (disconnect from the power supply).
• To replace, you need to get to the back of the washing machine. This will probably require disconnecting communications (sewage and water supply).
• Remove the back wall of the washer. To do this, most likely, you will need to unscrew the screws.
• When the back wall is removed, you will see a pulley and a tensioned belt that needs to be removed. In order to remove the belt, you need to pull it slightly towards you and then carefully turn the pulley.
• Next, disconnect the electric motor from the power supply.This is done very simply: pull out the connector with wires from the engine socket.
• Then pull out the washer motor. To do this, you need to unscrew several bolts.

Replacing parts

To replace electric motor brushes you must:

Motor with worn brushes

1. Place the washing machine motor on the side where the brush body is located. Then you need to unscrew the mounting bolts.
2. Disconnect the brushes from the washing machine motor. At this stage, it is advisable to photograph the location of the washer brushes and the sharpening points on them. If new parts are installed incorrectly, sparking will occur in the machine motor.
3. then remove the part from the back of the engine;
4. then carefully inspect the dismantled parts. For spent elements, as a rule, the length of the rod does not exceed 15 millimeters. If the rod lengths are greater, then most likely the reason is not them.
5. clean the motor commutator. There will be black dust from the brushes on it. If scratches are identified, it is recommended to clean them with sandpaper.
6. Install new motor brushes and then secure them with screws.

Final stage of repair

At the final stage of washing mashine repair, install the washing machine motor and return it to its original place. All necessary steps are performed in reverse order:

• installing the motor in place. To do this, secure it with bolts or other fasteners.
• connecting the power cable;
• then put on the belt. It is first placed on the engine, and then on the pulley. Scroll the last until the belt takes its place.
• Install the back cover of the washing machine.
• Upon completion of the repair work, test the operation of the washing machine. To do this, turn on any program and carefully listen to the operation of the motor. It should work as usual or a little louder. The main signs of a malfunction are crackling, grinding or loud noise.

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