The sewing machine for many is not only an assistant in the implementation of its creative ideas, but also a device that helps to cope with the unospel daily monotonous work of the seamstress. In order for this work to go without interruption, you need to take care that all the parts of the car are good, especially pedal.
Device
The pedal diagram for the sewing machine is most often very simple. This is especially true of the detail in which electronic spare parts are completely absent. Most often they are from foot electric machines. Called them Packed Patterns. Such a pedal consists of one detail - a row, which has a large number of graphite plates adjacent to each other very tight. It acts as a switch or electrical drive switch.
Unlike conventional switches, Pedals with wirestores smoothly and gradually both include, and turn off the sewing machine.
With it, you can adjust the speed of work, as well as change the voltage that is fed to the drive of the machine. As a result, the frequency of its rotation is changed, respectively, the speed of the work itself.
Principle of operation
If graphite plates will be in a free state, their resistance in relation to electric current will be too large. In this case, the current will not pass through the graphite plates folded together, which means that the motor will not rotate.
But there are plates at least for a few minutes to surrender, their resistance to the same second to decrease.
If it is more stronger, the number of current will increase significantly. So, the motor will work much more powerful, and the sewing machine will work more quickly. That is, the seamstress will be able to fulfill much more work in one day.
Views
If we consider household sewing machines, then The pedal to the electric drive can go electronic and rigging. Distinguish them easy and simple. The robust pedal will be much heavier by weight e-pedal electronic. It depends on whether the hull is made of metal or solid plastic, which is not exposed to deformation with a sharp difference in temperature. In addition, the metal pedal can serve in a sewing typewriter much longer than plastic. After all, when he falls on her heavy item, it will remain intact.
Inside such pedals there are a large number of graphite plates, quite tightly adjacent to each other. However, after a certain period of time, the plates constantly interact with each other, their destruction can occur. Most often it happens from those masters that use a sewing machine daily. In this case Worn parts must be changed on new ones. And since it is impossible to do it, then You just need to purchase another rheostat.
Unlike the rheostat pedal, the electronic practically does not have weight. After all, its filling is various chips and radio components. You can adjust such pedals using the change in the current value or changing the frequency of the voltage pulses, which is supplied to the electric motor.
However, it is worth noting another sewing machine pedal, which is considered to be rare.
She is found in such models as "Podolsk" or Singer. Of course, in terms of use, it is very inconvenient; Many believe that it is easier to work with her finger hand, not legs. However, by itself it A fairly reliable pedal. Many consider it simply not killed. Inside it, the wiring cannot be broken, the graphite records will not be able to ruin, and as for the hull itself, it will not be able to break it anyone. Therefore, those who saw it complete to their sewing machine, you need to rejoice. After all She can serve his owners longer than the machine itself.
How to install them?
In the event of a breakdown of the pedal, the sewing machine must be determined to which type belongs. If the electrical pedal of the sewing machine of the rosight form, it can be either adjusted or repaired.
Those who have a sewing machine supplemented with such a detail as an electronic pedal, it is necessary to stop its work for a while. After all, in case of its breakdown, you will need to contact the specialists. For its repair, special equipment is needed, as well as at least minimal knowledge in such an area as electronics.
Among other things, the sewing machine pedal also serves to adjust the sewing speed. Modern sewing machines can be adjusted by 2 ways.
- Special controller installed on the sewing machine body. He is especially important in cases where a child often works for the machine. In this case, you can set the regulator to the lowest speed.
- Pedal. From how power to harvest it, the sewing speed will depend on it. You can also adjust the idle pedal itself and the smooth change of revolutions. In some machines, the pedal is equipped with a mode switch. In this case, you can choose a low speed at too complex places.
In any case, if the pedal is adjusted well, the seamstress will enjoy their work, because the machine will work easily and smoothly.
Causes of faults
There are many different reasons for the breakdown of the sewing machine pedal. However, this does not mean that in each case you will need to produce repair work. First you need to make sure that broke the pedal, and not some other detail.
First you need to check the maintenance of the motor. To do this, you need to directly connect the cord coming from the outlet. If the cause of the breakdown is not a motor, then you need to see what type of pedal at the sewing machine. In the event that it is electric, it will be possible to start repairing it. Electronic pedal to repair independently impossible. It is worth familiar with the most common causes of her breakdown.
- In the case of oxidation of contacts in the pedal itself or in the fork, it will be enough to simply clean them and then restore. Then the sewing machine will earn again. You can do this with the help of ordinary sandpaper, which will not be able to damage them when cleaning.
- Frequently, the electrical circuit inside the insulating cord is broken . It happens as a result of a negligent attitude to the connecting wires that go to the pedal. For example, if often, and without reason, pull the cord from the outlet, while pulling it for the cord, and not for the plug, the machine can break. In addition, heavy items fall on the cord or the leg of the chair falls. In this case, it is necessary to simply replace the wire.
However, do your own repair in this case is dangerous, so it will be better to apply for help to the electrician.
- Another cause of a sewing machine fault is Travel, as well as replacing graphite plates. The first sign of such a breakdown is considered to reduce the speed in the operation of the electrical drive of the sewing machine. In addition, when you press the pedal, the electromotor responds too weakly. The machine starts to sew only in a couple of seconds after pressing the pedal, not immediately. If you open the lid and look at graphite plates, you can see only black dust. In this case, they must be replaced with new ones. However, it will be impossible to purchase them in the store. In addition, it is also impossible to drink them with the help of hacks. After all, the thickness of one plate is only 0.2 millimeters.
In addition, graphite creates too quickly and uniformly sprinkle it will not be possible. Therefore, in case of such a malfunction, you must purchase a new part completely, and then replace it.
- Most often robust The sewing machine pedal is made from the heat-resistant plastic, which differs from other materials by its fragility. Therefore, when dropping on a plastic pedal of heavy items or in case of an inappropriate drop in its floor, it can break. In this case, some seamstres are trying to glue it with high-quality glue. However, the pedal of an electrical sewing machine has a property to heat up, why the glue is softened with the details that were connected to them will become fragile. Therefore, when you click on the pedal, it can simply fall apart, and in some cases even to strike the seam. Therefore, it is better to replace it with a new one.
- In electronic machines for sewing, it is also possible to see that such an important item does not work as a pedal. However, it is possible to detect a malfunction using special devices. Quite often fails the microcircuit or simply defective thyristor. In this case, the details must be replaced with new ones. It is best to do in specialized centers, where the masters after inspection of the pedal will tell their verdict. However, some experienced masters who have some skills in working with electronic technology are trying to do it on their own.
Repair is absolutely no different from the repair of electrical pedal. You must also open the pedal, carefully inspect all suspicious places, and then suck them with a soldering iron.
In addition, each seamstress should know several rules for using the sewing machine. First of all, After the end of the repair, especially if it was made independently, you should not leave a sewing pedal for a long time included. Besides, Do not leave it unattended While the seamstress is not convinced of its complete statement. In any case, when the seamstress removes the leg with the pedal, to the electric motor In no case should not go the current Especially on the weekend contacts going to the plug. Indeed, in this case, there is a complete disconnection of electrocups.
Very often, the new masters have no experience in adjusting the rheostat. Therefore, quite often they leave the pedal included. And this will lead to its constant overheating, and hence the emergency breakdown.
Summing up, we can say that Such a detail as a sewing machine pedal is important enough. After all, the machine itself will not work without it. Therefore, if it is malfunction, it is necessary to quickly run to the wizard or solve the problem yourself. Otherwise, the work will stall for a long time.
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Repair of the sewing machine pedal is demonstrated in the video.