About the device of the washing machine Most of us know a little. It is enough to know that it is enough to know where to connect the hoses, load underwear and fall asleep washing powder. But when the washer unexpectedly fails, and professional assistance for some reason does not have to wait, elementary knowledge of the principles of action and the main mechanisms of the instrument can very care.
In this article we want to tell you about the dress-out - an important element of modern washing machines. You will learn what kind of functions do, and what problems can happen to it.
Principle of operation
Externally, the tank is a metal ring with two wires connected to it. It is attached to the rotating electric motor shaft. Due to the rotation of the latter, a voltage is supplied to the tachogenerator, which is formed under the influence of an electromagnetic field. The voltage force directly depends on the rotation speed of the shaft: the faster it rotates, the more the voltage becomes.
The tachogenerator is provided in the washing machine precisely in order to measure the engine speed - it is calculated through voltage strength. The information from the Dangle enters the electronic control module.
Where is?
As we have said, the tank is an element of a washing machine, which is located on a rotating shaft. Detect it is quite easy, but for this you will have to partially disassemble the washer. The engine is located at the bottom of the device to get to it, you need to push the unit from the wall and remove the rear panel (unscrew the fastening and picker the cover with a thin screwdriver). It is not difficult to find the engine: this is a device that is connected to the pulley (rotating wheel) by means of a drive belt. You will see a metal ring on the shaft of the electric motor - this is a tachogenerator.
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Signs of tanet malfunctions
The fact that the tachner is faulty, and needs to be repaired or replaced, you can learn from a number of signs:
- A sharp drops of the rotational speed of the drum occur;
- Under annealing, the drum rotates much slower than should;
- During washing, the drum speed is significantly larger than usual;
- At the end of the washing, you pull out the drum poorly pressed or completely wet underwear.
How to check?
Make sure the malfunction (or, on the contrary, serviceability) of the tachogenerator, by checking the status of this device. It will consist of several stages:
Removing the electric motor. To do this, unscrew the bolts that are fixed, and disconnect all the wires that go to it. In the video channel "Euromaster", it is shown how you need to remove the engine.
Measurement of resistance on the wire batch wires. Previously, you need to remove the wires from the connector, and only then proceed to measurements. They are produced using a multimeter translated into an ohmmeter mode. Normally, the bandwarm must be about 60 ohms.
Measurement of voltage on the tachogenerator. To do this, you will also need a multimeter, but it will need to be switched to the appropriate mode. To obtain accurate data, conducting measurements, you need to scroll through the engine manually. As the speed increases, the instrument testimony must become greater.
Check fastening reliability. If the measurement results are within the normal range, you need to search for a different cause of the failure in the work of the Danger. First, make sure that it is securely fixed. If the locking bolts are weakened, it may well cause various malfunctions in the device.
Replacing a defective tanet
Replacing a defective batch is performed in the following order:
- disconnect the wiring from the connectors (if it was not done when measuring);
- Remove the plastic or metal cap of the tachogenerator, which is usually fixed with a simple latch;
- unscrew the fasteners on which the dumplock holds;
- We remove the device failed and install a new one.
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Advice
- Many modern producers of washing machines equip their devices with a type of tachogenerator, which is called the "Hall Sensor". It is installed directly into the Washing Engine and is distinguished by a high degree of reliability. Such devices can be found in washing machines LG, Indesit, Bosch, Samsung (but not in all models).
- Sometimes problems with the speed of rotation of the drum occur not because of the breakdown of the tachogenerator, but for less serious reasons.
Before disassembling the washing machine in search of problems, pay attention to the state of the button that runs the pressure mode. If it is clamped, the cause of failures is most likely in it.
